1
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Chamberlain SR, Moore S, Grant TD. Fitting high-resolution electron density maps from atomic models to solution scattering data. Biophys J 2023; 122:4567-4581. [PMID: 37924208 PMCID: PMC10719074 DOI: 10.1016/j.bpj.2023.10.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/29/2023] [Accepted: 10/31/2023] [Indexed: 11/06/2023] Open
Abstract
Solution scattering techniques, such as small- and wide-angle X-ray scattering (SWAXS), provide valuable insights into the structure and dynamics of biological macromolecules in solution. In this study, we present an approach to accurately predict solution X-ray scattering profiles at wide angles from atomic models by generating high-resolution electron density maps. Our method accounts for the excluded volume of bulk solvent by calculating unique adjusted atomic volumes directly from the atomic coordinates. This approach eliminates the need for one of the free fitting parameters commonly used in existing algorithms, resulting in improved accuracy of the calculated SWAXS profile. An implicit model of the hydration shell is generated that uses the form factor of water. Two parameters, namely the bulk solvent density and the mean hydration shell contrast, are adjusted to best fit the data. Results using eight publicly available SWAXS profiles show high-quality fits to the data. In each case, the optimized parameter values show small adjustments demonstrating that the default values are close to the true solution. Disabling parameter optimization produces significantly more accurate predicted scattering profiles compared to the leading software. The algorithm is computationally efficient, comparable to the leading software and up to 10 times faster for large molecules. The algorithm is encoded in a command line script called denss.pdb2mrc.py and is available open source as part of the DENSS v1.7.0 software package. In addition to improving the ability to compare atomic models to experimental SWAXS data, these developments pave the way for increasing the accuracy of modeling algorithms using SWAXS data and decreasing the risk of overfitting.
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Affiliation(s)
- Sarah R Chamberlain
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, New York
| | - Stephen Moore
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, New York
| | - Thomas D Grant
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, New York.
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2
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Zielinski KA, Sui S, Pabit SA, Rivera DA, Wang T, Hu Q, Kashipathy MM, Lisova S, Schaffer CB, Mariani V, Hunter MS, Kupitz C, Moss FR, Poitevin FP, Grant TD, Pollack L. RNA structures and dynamics with Å resolution revealed by x-ray free-electron lasers. Sci Adv 2023; 9:eadj3509. [PMID: 37756398 PMCID: PMC10530093 DOI: 10.1126/sciadv.adj3509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023]
Abstract
RNA macromolecules, like proteins, fold to assume shapes that are intimately connected to their broadly recognized biological functions; however, because of their high charge and dynamic nature, RNA structures are far more challenging to determine. We introduce an approach that exploits the high brilliance of x-ray free-electron laser sources to reveal the formation and ready identification of angstrom-scale features in structured and unstructured RNAs. Previously unrecognized structural signatures of RNA secondary and tertiary structures are identified through wide-angle solution scattering experiments. With millisecond time resolution, we observe an RNA fold from a dynamically varying single strand through a base-paired intermediate to assume a triple-helix conformation. While the backbone orchestrates the folding, the final structure is locked in by base stacking. This method may help to rapidly characterize and identify structural elements in nucleic acids in both equilibrium and time-resolved experiments.
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Affiliation(s)
- Kara A. Zielinski
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
| | - Shuo Sui
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
| | - Suzette A. Pabit
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
| | - Daniel A. Rivera
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Tong Wang
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
| | - Qingyue Hu
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
| | - Maithri M. Kashipathy
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Stella Lisova
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Chris B. Schaffer
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Valerio Mariani
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Mark S. Hunter
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Christopher Kupitz
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Frank R. Moss
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Frédéric P. Poitevin
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Thomas D. Grant
- Department of Structural Biology, Jacobs School of Medicine and Biological Sciences, University at Buffalo, Buffalo, NY 14203, USA
| | - Lois Pollack
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
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3
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Doppler D, Sonker M, Egatz-Gomez A, Grieco A, Zaare S, Jernigan R, Meza-Aguilar JD, Rabbani MT, Manna A, Alvarez RC, Karpos K, Cruz Villarreal J, Nelson G, Yang JH, Carrion J, Morin K, Ketawala GK, Pey AL, Ruiz-Fresneda MA, Pacheco-Garcia JL, Hermoso JA, Nazari R, Sierra R, Hunter MS, Batyuk A, Kupitz CJ, Sublett RE, Lisova S, Mariani V, Boutet S, Fromme R, Grant TD, Botha S, Fromme P, Kirian RA, Martin-Garcia JM, Ros A. Modular droplet injector for sample conservation providing new structural insight for the conformational heterogeneity in the disease-associated NQO1 enzyme. Lab Chip 2023; 23:3016-3033. [PMID: 37294576 PMCID: PMC10503405 DOI: 10.1039/d3lc00176h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Droplet injection strategies are a promising tool to reduce the large amount of sample consumed in serial femtosecond crystallography (SFX) measurements at X-ray free electron lasers (XFELs) with continuous injection approaches. Here, we demonstrate a new modular microfluidic droplet injector (MDI) design that was successfully applied to deliver microcrystals of the human NAD(P)H:quinone oxidoreductase 1 (NQO1) and phycocyanin. We investigated droplet generation conditions through electrical stimulation for both protein samples and implemented hardware and software components for optimized crystal injection at the Macromolecular Femtosecond Crystallography (MFX) instrument at the Stanford Linac Coherent Light Source (LCLS). Under optimized droplet injection conditions, we demonstrate that up to 4-fold sample consumption savings can be achieved with the droplet injector. In addition, we collected a full data set with droplet injection for NQO1 protein crystals with a resolution up to 2.7 Å, leading to the first room-temperature structure of NQO1 at an XFEL. NQO1 is a flavoenzyme associated with cancer, Alzheimer's and Parkinson's disease, making it an attractive target for drug discovery. Our results reveal for the first time that residues Tyr128 and Phe232, which play key roles in the function of the protein, show an unexpected conformational heterogeneity at room temperature within the crystals. These results suggest that different substates exist in the conformational ensemble of NQO1 with functional and mechanistic implications for the enzyme's negative cooperativity through a conformational selection mechanism. Our study thus demonstrates that microfluidic droplet injection constitutes a robust sample-conserving injection method for SFX studies on protein crystals that are difficult to obtain in amounts necessary for continuous injection, including the large sample quantities required for time-resolved mix-and-inject studies.
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Affiliation(s)
- Diandra Doppler
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Mukul Sonker
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Ana Egatz-Gomez
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Alice Grieco
- Department of Crystallography and Structural Biology, Institute of Physical Chemistry Blas Cabrera, Spanish National Research Council (CSIC), Serrano 119, 28006, Madrid, Spain.
| | - Sahba Zaare
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
- Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Rebecca Jernigan
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Jose Domingo Meza-Aguilar
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Mohammad T Rabbani
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Abhik Manna
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Roberto C Alvarez
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
- Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Konstantinos Karpos
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
- Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Jorvani Cruz Villarreal
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Garrett Nelson
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
- Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Jay-How Yang
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Jackson Carrion
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Katherine Morin
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Gihan K Ketawala
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Angel L Pey
- Departamento de Química Física, Unidad de Excelencia en Química Aplicada a Biomedicina y Medioambiente e Instituto de Biotecnología, Universidad de Granada, Av. Fuentenueva s/n, 18071, Granada, Spain
| | - Miguel Angel Ruiz-Fresneda
- Department of Crystallography and Structural Biology, Institute of Physical Chemistry Blas Cabrera, Spanish National Research Council (CSIC), Serrano 119, 28006, Madrid, Spain.
| | - Juan Luis Pacheco-Garcia
- Departamento de Química Física, Universidad de Granada, Av. Fuentenueva s/n, 18071 Granada, Spain
| | - Juan A Hermoso
- Department of Crystallography and Structural Biology, Institute of Physical Chemistry Blas Cabrera, Spanish National Research Council (CSIC), Serrano 119, 28006, Madrid, Spain.
| | - Reza Nazari
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
- Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Raymond Sierra
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, 94025 CA, USA
| | - Mark S Hunter
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, 94025 CA, USA
| | - Alexander Batyuk
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, 94025 CA, USA
| | - Christopher J Kupitz
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, 94025 CA, USA
| | - Robert E Sublett
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, 94025 CA, USA
| | - Stella Lisova
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, 94025 CA, USA
| | - Valerio Mariani
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, 94025 CA, USA
| | - Sébastien Boutet
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, 94025 CA, USA
| | - Raimund Fromme
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Thomas D Grant
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, 955 Main St, Buffalo, NY, 14203, USA
| | - Sabine Botha
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
- Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Petra Fromme
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Richard A Kirian
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
- Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Jose Manuel Martin-Garcia
- Department of Crystallography and Structural Biology, Institute of Physical Chemistry Blas Cabrera, Spanish National Research Council (CSIC), Serrano 119, 28006, Madrid, Spain.
| | - Alexandra Ros
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
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4
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Chamberlain SR, Moore S, Grant TD. Fitting high-resolution electron density maps from atomic models to solution scattering data. bioRxiv 2023:2023.06.02.543451. [PMID: 37398274 PMCID: PMC10312546 DOI: 10.1101/2023.06.02.543451] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Solution scattering techniques, such as small and wide-angle X-ray scattering (SWAXS), provide valuable insights into the structure and dynamics of biological macromolecules in solution. In this study, we present an approach to accurately predict solution X-ray scattering profiles at wide angles from atomic models by generating high-resolution electron density maps. Our method accounts for the excluded volume of bulk solvent by calculating unique adjusted atomic volumes directly from the atomic coordinates. This approach eliminates the need for a free fitting parameter commonly used in existing algorithms, resulting in improved accuracy of the calculated SWAXS profile. An implicit model of the hydration shell is generated which uses the form factor of water. Two parameters, namely the bulk solvent density and the mean hydration shell contrast, are adjusted to best fit the data. Results using eight publicly available SWAXS profiles show high quality fits to the data. In each case, the optimized parameter values show small adjustments demonstrating that the default values are close to the true solution. Disabling parameter optimization results in a significant improvement of the calculated scattering profiles compared to the leading software. The algorithm is computationally efficient, showing more than tenfold reduction in execution time compared to the leading software. The algorithm is encoded in a command line script called denss.pdb2mrc.py and is available open source as part of the DENSS v1.7.0 software package (https://github.com/tdgrant1/denss). In addition to improving the ability to compare atomic models to experimental SWAXS data, these developments pave the way for increasing the accuracy of modeling algorithms utilizing SWAXS data while decreasing the risk of overfitting.
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Affiliation(s)
- Sarah R. Chamberlain
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, NY, USA
| | - Stephen Moore
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, NY, USA
| | - Thomas D. Grant
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, NY, USA
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5
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Zielinski KA, Sui S, Pabit SA, Rivera DA, Wang T, Hu Q, Kashipathy MM, Lisova S, Schaffer CB, Mariani V, Hunter MS, Kupitz C, Moss FR, Poitevin FP, Grant TD, Pollack L. RNA structures and dynamics with Å resolution revealed by x-ray free electron lasers. bioRxiv 2023:2023.05.24.541763. [PMID: 37292849 PMCID: PMC10245879 DOI: 10.1101/2023.05.24.541763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
RNA macromolecules, like proteins, fold to assume shapes that are intimately connected to their broadly recognized biological functions; however, because of their high charge and dynamic nature, RNA structures are far more challenging to determine. We introduce an approach that exploits the high brilliance of x-ray free electron laser sources to reveal the formation and ready identification of Å scale features in structured and unstructured RNAs. New structural signatures of RNA secondary and tertiary structures are identified through wide angle solution scattering experiments. With millisecond time resolution, we observe an RNA fold from a dynamically varying single strand through a base paired intermediate to assume a triple helix conformation. While the backbone orchestrates the folding, the final structure is locked in by base stacking. In addition to understanding how RNA triplexes form and thereby function as dynamic signaling elements, this new method can vastly increase the rate of structure determination for these biologically essential, but mostly uncharacterized macromolecules.
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Affiliation(s)
- Kara A. Zielinski
- School of Applied and Engineering Physics, Cornell University; Ithaca NY 14853 USA
| | - Shuo Sui
- School of Applied and Engineering Physics, Cornell University; Ithaca NY 14853 USA
| | - Suzette A. Pabit
- School of Applied and Engineering Physics, Cornell University; Ithaca NY 14853 USA
| | - Daniel A. Rivera
- Meinig School of Biomedical Engineering, Cornell University; Ithaca NY 14853 USA
| | - Tong Wang
- School of Applied and Engineering Physics, Cornell University; Ithaca NY 14853 USA
| | - Qingyue Hu
- School of Applied and Engineering Physics, Cornell University; Ithaca NY 14853 USA
| | - Maithri M. Kashipathy
- Linac Coherent Light Source, SLAC National Accelerator Laboratory; Menlo Park, CA 94025 USA
| | - Stella Lisova
- Linac Coherent Light Source, SLAC National Accelerator Laboratory; Menlo Park, CA 94025 USA
| | - Chris B. Schaffer
- Meinig School of Biomedical Engineering, Cornell University; Ithaca NY 14853 USA
| | - Valerio Mariani
- Linac Coherent Light Source, SLAC National Accelerator Laboratory; Menlo Park, CA 94025 USA
| | - Mark S. Hunter
- Linac Coherent Light Source, SLAC National Accelerator Laboratory; Menlo Park, CA 94025 USA
| | - Christopher Kupitz
- Linac Coherent Light Source, SLAC National Accelerator Laboratory; Menlo Park, CA 94025 USA
| | - Frank R. Moss
- Linac Coherent Light Source, SLAC National Accelerator Laboratory; Menlo Park, CA 94025 USA
| | - Frédéric P. Poitevin
- Linac Coherent Light Source, SLAC National Accelerator Laboratory; Menlo Park, CA 94025 USA
| | - Thomas D. Grant
- Department of Structural Biology, Jacobs School of Medicine and Biological Sciences; University at Buffalo, Buffalo, NY 14203 USA
| | - Lois Pollack
- School of Applied and Engineering Physics, Cornell University; Ithaca NY 14853 USA
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6
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Brown MF, Grant TD, Perera SMDC, Salas-Estrada L, Struts AV, Karpos K, Chawla U, Fried SDE, Menon CSK, Weerasinghe N, Meza D, Mendez D, Grossfield A, Fromme P, Kirian RA. Femtosecond dynamics of rhodopsin revealed by X-ray laser. Biophys J 2023; 122:199a. [PMID: 36782956 DOI: 10.1016/j.bpj.2022.11.1208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Affiliation(s)
- Michael F Brown
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA; Department of Physics, University of Arizona, Tucson, AZ, USA
| | - Thomas D Grant
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | | | - Leslie Salas-Estrada
- Department of Biochemistry and Biophysics, University of Rochester Medical Center, Rochester, NY, USA
| | - Andrey V Struts
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA
| | | | - Udeep Chawla
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA
| | - Steven D E Fried
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA
| | - C Swathi K Menon
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA
| | - Nipuna Weerasinghe
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA
| | - Domingo Meza
- School of Molecular Sciences, Arizona State University, Tempe, AZ, USA
| | - Derek Mendez
- Department of Physics, Arizona State University, Tempe, AZ, USA
| | - Alan Grossfield
- Department of Biochemistry and Biophysics, University of Rochester Medical Center, Rochester, NY, USA
| | - Petra Fromme
- School of Molecular Sciences, Arizona State University, Tempe, AZ, USA
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7
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Jernigan RJ, Logeswaran D, Doppler D, Nagaratnam N, Sonker M, Yang JH, Ketawala G, Martin-Garcia JM, Shelby ML, Grant TD, Mariani V, Tolstikova A, Sheikh MZ, Yung MC, Coleman MA, Zaare S, Kaschner EK, Rabbani MT, Nazari R, Zacks MA, Hayes B, Sierra RG, Hunter MS, Lisova S, Batyuk A, Kupitz C, Boutet S, Hansen DT, Kirian RA, Schmidt M, Fromme R, Frank M, Ros A, Chen JJL, Botha S, Fromme P. Room-temperature structural studies of SARS-CoV-2 protein NendoU with an X-ray free-electron laser. Structure 2023; 31:138-151.e5. [PMID: 36630960 PMCID: PMC9830665 DOI: 10.1016/j.str.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/08/2022] [Accepted: 12/14/2022] [Indexed: 01/11/2023]
Abstract
NendoU from SARS-CoV-2 is responsible for the virus's ability to evade the innate immune system by cleaving the polyuridine leader sequence of antisense viral RNA. Here we report the room-temperature structure of NendoU, solved by serial femtosecond crystallography at an X-ray free-electron laser to 2.6 Å resolution. The room-temperature structure provides insight into the flexibility, dynamics, and other intrinsic properties of NendoU, with indications that the enzyme functions as an allosteric switch. Functional studies examining cleavage specificity in solution and in crystals support the uridine-purine cleavage preference, and we demonstrate that enzyme activity is fully maintained in crystal form. Optimizing the purification of NendoU and identifying suitable crystallization conditions set the benchmark for future time-resolved serial femtosecond crystallography studies. This could advance the design of antivirals with higher efficacy in treating coronaviral infections, since drugs that block allosteric conformational changes are less prone to drug resistance.
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Affiliation(s)
- Rebecca J Jernigan
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA; School of Molecular Sciences, Arizona State University, Tempe, AZ 85287-1604, USA
| | - Dhenugen Logeswaran
- School of Molecular Sciences, Arizona State University, Tempe, AZ 85287-1604, USA
| | - Diandra Doppler
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA; School of Molecular Sciences, Arizona State University, Tempe, AZ 85287-1604, USA
| | - Nirupa Nagaratnam
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA
| | - Mukul Sonker
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA; School of Molecular Sciences, Arizona State University, Tempe, AZ 85287-1604, USA
| | - Jay-How Yang
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA
| | - Gihan Ketawala
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA; School of Molecular Sciences, Arizona State University, Tempe, AZ 85287-1604, USA
| | - Jose M Martin-Garcia
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA
| | - Megan L Shelby
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA
| | - Thomas D Grant
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, 955 Main Street, Buffalo, NY 14203, USA
| | - Valerio Mariani
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - Michelle Z Sheikh
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA
| | - Mimi Cho Yung
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA
| | - Matthew A Coleman
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA
| | - Sahba Zaare
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA; Fulton School of Electrical, Computer, and Energy Engineering, Arizona State University, Tempe, AZ 85287, USA; Department of Physics, Arizona State University, Tempe, AZ 85287-1504, USA
| | - Emily K Kaschner
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA; School of Molecular Sciences, Arizona State University, Tempe, AZ 85287-1604, USA
| | - Mohammad Towshif Rabbani
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA
| | - Reza Nazari
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA
| | - Michele A Zacks
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA
| | - Brandon Hayes
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Raymond G Sierra
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Mark S Hunter
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Stella Lisova
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Alexander Batyuk
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Christopher Kupitz
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Sebastien Boutet
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Debra T Hansen
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA
| | - Richard A Kirian
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA; Department of Physics, Arizona State University, Tempe, AZ 85287-1504, USA
| | - Marius Schmidt
- Department of Physics, University of Wisconsin-Milwaukee, 3135 N. Maryland Avenue, Milwaukee, WI 53211, USA
| | - Raimund Fromme
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA; School of Molecular Sciences, Arizona State University, Tempe, AZ 85287-1604, USA
| | - Matthias Frank
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA
| | - Alexandra Ros
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA; School of Molecular Sciences, Arizona State University, Tempe, AZ 85287-1604, USA
| | - Julian J-L Chen
- School of Molecular Sciences, Arizona State University, Tempe, AZ 85287-1604, USA
| | - Sabine Botha
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA; Department of Physics, Arizona State University, Tempe, AZ 85287-1504, USA.
| | - Petra Fromme
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287-5001, USA; School of Molecular Sciences, Arizona State University, Tempe, AZ 85287-1604, USA.
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8
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Sonker M, Doppler D, Egatz-Gomez A, Zaare S, Rabbani MT, Manna A, Cruz Villarreal J, Nelson G, Ketawala GK, Karpos K, Alvarez RC, Nazari R, Thifault D, Jernigan R, Oberthür D, Han H, Sierra R, Hunter MS, Batyuk A, Kupitz CJ, Sublett RE, Poitevin F, Lisova S, Mariani V, Tolstikova A, Boutet S, Messerschmidt M, Meza-Aguilar JD, Fromme R, Martin-Garcia JM, Botha S, Fromme P, Grant TD, Kirian RA, Ros A. Electrically stimulated droplet injector for reduced sample consumption in serial crystallography. Biophys Rep (N Y) 2022; 2:100081. [PMID: 36425668 PMCID: PMC9680787 DOI: 10.1016/j.bpr.2022.100081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
With advances in X-ray free-electron lasers (XFELs), serial femtosecond crystallography (SFX) has enabled the static and dynamic structure determination for challenging proteins such as membrane protein complexes. In SFX with XFELs, the crystals are typically destroyed after interacting with a single XFEL pulse. Therefore, thousands of new crystals must be sequentially introduced into the X-ray beam to collect full data sets. Because of the serial nature of any SFX experiment, up to 99% of the sample delivered to the X-ray beam during its "off-time" between X-ray pulses is wasted due to the intrinsic pulsed nature of all current XFELs. To solve this major problem of large and often limiting sample consumption, we report on improvements of a revolutionary sample-saving method that is compatible with all current XFELs. We previously reported 3D-printed injection devices coupled with gas dynamic virtual nozzles (GDVNs) capable of generating samples containing droplets segmented by an immiscible oil phase for jetting crystal-laden droplets into the path of an XFEL. Here, we have further improved the device design by including metal electrodes inducing electrowetting effects for improved control over droplet generation frequency to stimulate the droplet release to matching the XFEL repetition rate by employing an electrical feedback mechanism. We report the improvements in this electrically triggered segmented flow approach for sample conservation in comparison with a continuous GDVN injection using the microcrystals of lysozyme and 3-deoxy-D-manno-octulosonate 8-phosphate synthase and report the segmented flow approach for sample injection applied at the Macromolecular Femtosecond Crystallography instrument at the Linear Coherent Light Source for the first time.
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Affiliation(s)
- Mukul Sonker
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Diandra Doppler
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Ana Egatz-Gomez
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Sahba Zaare
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
- Department of Physics, Arizona State University, Tempe, Arizona
| | - Mohammad T. Rabbani
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Abhik Manna
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Jorvani Cruz Villarreal
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Garrett Nelson
- Department of Physics, Arizona State University, Tempe, Arizona
| | - Gihan K. Ketawala
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Konstantinos Karpos
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
- Department of Physics, Arizona State University, Tempe, Arizona
| | - Roberto C. Alvarez
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
- Department of Physics, Arizona State University, Tempe, Arizona
| | - Reza Nazari
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
- Department of Physics, Arizona State University, Tempe, Arizona
| | - Darren Thifault
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Rebecca Jernigan
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Dominik Oberthür
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Hamburg, Germany
| | | | - Raymond Sierra
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California
| | - Mark S. Hunter
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California
| | - Alexander Batyuk
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California
| | - Christopher J. Kupitz
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California
| | - Robert E. Sublett
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California
| | - Frederic Poitevin
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California
| | - Stella Lisova
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California
| | - Valerio Mariani
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California
| | - Alexandra Tolstikova
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Hamburg, Germany
| | - Sebastien Boutet
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California
| | - Marc Messerschmidt
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - J. Domingo Meza-Aguilar
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Raimund Fromme
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Jose M. Martin-Garcia
- Institute Physical-Chemistry Rocasolano, Spanish National Research Council, Madrid, Spain
| | - Sabine Botha
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
- Department of Physics, Arizona State University, Tempe, Arizona
| | - Petra Fromme
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
| | - Thomas D. Grant
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, New York
| | - Richard A. Kirian
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
- Department of Physics, Arizona State University, Tempe, Arizona
| | - Alexandra Ros
- School of Molecular Sciences, Arizona State University, Tempe, Arizona
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona
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9
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Abstract
Ab initio modeling methods have proven to be powerful means of interpreting solution scattering data. In the absence of atomic models, or complementary to them, ab initio modeling approaches can be used for generating low-resolution particle envelopes using only solution scattering profiles. Recently, a new ab initio reconstruction algorithm has been introduced to the scientific community, called DENSS. DENSS is unique among ab initio modeling algorithms in that it solves the inverse scattering problem, i.e., the 1D scattering intensities are directly used to determine the 3D particle density. The reconstruction of particle density has several advantages over conventional uniform density modeling approaches, including the ability to reconstruct a much wider range of particle types and the ability to visualize low-resolution density fluctuations inside the particle envelope. In this chapter we will discuss the theory behind this new approach, how to use DENSS, and how to interpret the results. Several examples with experimental and simulated data will be provided.
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Affiliation(s)
- Thomas D Grant
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, NY, United States.
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10
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Grant TD. Describing small-angle scattering profiles by a limited set of intensities. J Appl Crystallogr 2022; 55:1116-1124. [PMID: 36249494 PMCID: PMC9533761 DOI: 10.1107/s1600576722006598] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 06/24/2022] [Indexed: 11/22/2022] Open
Abstract
An indirect Fourier transform method is presented which describes a solution scattering profile from a reduced set of intensities. Equations are derived to fit the experimental profile using least squares and to calculate commonly used size and shape parameters directly from the reduced set of intensities, along with associated uncertainties. An analytical equation is derived enabling regularization of the real-space pair distribution function. Convenient software is provided to perform all described calculations. Small-angle scattering (SAS) probes the size and shape of particles at low resolution through the analysis of the scattering of X-rays or neutrons passing through a solution of particles. One approach to extracting structural information from SAS data is the indirect Fourier transform (IFT). The IFT approach parameterizes the real-space pair distribution function [P(r)] of a particle using a set of basis functions, which simultaneously determines the scattering profile [I(q)] using corresponding reciprocal-space basis functions. This article presents an extension of an IFT algorithm proposed by Moore [J. Appl. Cryst. (1980), 13, 168–175] which used a trigonometric series to describe the basis functions, where the real-space and reciprocal-space basis functions are Fourier mates. An equation is presented relating the Moore coefficients to the intensities of the SAS profile at specific positions, as well as a series of new equations that describe the size and shape parameters of a particle from this distinct set of intensity values. An analytical real-space regularizer is derived to smooth the P(r) curve and ameliorate systematic deviations caused by series termination. Regularization is commonly used in IFT methods though not described in Moore’s original approach, which is particularly susceptible to such effects. The algorithm is provided as a script, denss.fit_data.py, as part of the DENSS software package for SAS, which includes both command line and interactive graphical interfaces. Results of the program using experimental data show that it is as accurate as, and often more accurate than, existing tools.
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11
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Nagaratnam N, Martin-Garcia JM, Yang JH, Goode MR, Ketawala G, Craciunescu FM, Zook JD, Sonowal M, Williams D, Grant TD, Fromme R, Hansen DT, Fromme P. Structural and biophysical properties of FopA, a major outer membrane protein of Francisella tularensis. PLoS One 2022; 17:e0267370. [PMID: 35913965 PMCID: PMC9342783 DOI: 10.1371/journal.pone.0267370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 07/08/2022] [Indexed: 11/20/2022] Open
Abstract
Francisella tularensis is an extremely infectious pathogen and a category A bioterrorism agent. It causes the highly contagious zoonosis, Tularemia. Currently, FDA approved vaccines against tularemia are unavailable. F. tularensis outer membrane protein A (FopA) is a well-studied virulence determinant and protective antigen against tularemia. It is a major outer membrane protein (Omp) of F. tularensis. However, FopA-based therapeutic intervention is hindered due to lack of complete structural information for membrane localized mature FopA. In our study, we established recombinant expression, monodisperse purification, crystallization and X-ray diffraction (~6.5 Å) of membrane localized mature FopA. Further, we performed bioinformatics and biophysical experiments to unveil its structural organization in the outer membrane. FopA consists of 393 amino acids and has less than 40% sequence identity to known bacterial Omps. Using comprehensive sequence alignments and structure predictions together with existing partial structural information, we propose a two-domain organization for FopA. Circular dichroism spectroscopy and heat modifiability assay confirmed FopA has a β-barrel domain consistent with alphafold2’s prediction of an eight stranded β-barrel at the N-terminus. Small angle X-ray scattering (SAXS) and native-polyacrylamide gel electrophoresis revealed FopA purified in detergent micelles is predominantly dimeric. Molecular density derived from SAXS at 31 Å shows putative dimeric N-terminal β-barrels surrounded by detergent corona and connected to C-terminal domains via flexible linker. Disorder analysis predicts N- and C-terminal domains are interspersed by a long intrinsically disordered region and alphafold2 predicts this region to be largely unstructured. Taken together, we propose a dimeric, two-domain organization of FopA in the outer membrane: the N-terminal β-barrel is membrane embedded, provides dimerization interface and tethers to membrane extrinsic C-terminal domain via long flexible linker. Structure determination of membrane localized mature FopA is essential to understand its role in pathogenesis and develop anti-tularemia therapeutics. Our results pave the way towards it.
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Affiliation(s)
- Nirupa Nagaratnam
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
| | - Jose M. Martin-Garcia
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
| | - Jay-How Yang
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
| | - Matthew R. Goode
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, United States of America
| | - Gihan Ketawala
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
| | - Felicia M. Craciunescu
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
| | - James D. Zook
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
| | - Manashi Sonowal
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, United States of America
| | - Dewight Williams
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
- Eyring Materials Center, Arizona State University, Tempe, Arizona, United States of America
| | - Thomas D. Grant
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, New York, New York, United States of America
| | - Raimund Fromme
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, United States of America
| | - Debra T. Hansen
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
- Center for Innovations in Medicine, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
| | - Petra Fromme
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, Arizona, United States of America
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, United States of America
- * E-mail:
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12
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Singh J, Grant TD. Structural dynamics of non-ribosomal peptide synthetases. Acta Crystallogr A Found Adv 2022. [DOI: 10.1107/s2053273322099533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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13
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Brown MF, Grant TD, Perera SM, Salas-Estrada L, Struts AV, Karpos K, Chawla U, Fried SD, Menon CSK, Weerasinghe N, Meza D, Mendez D, Grossfield A, Fromme P, Kirian RA. Functional dynamics of G-protein-coupled receptor shown by femtosecond X-ray scattering. Biophys J 2022. [DOI: 10.1016/j.bpj.2021.11.1755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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14
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Menon CSK, Karpos K, Grant TD, Struts AV, Fried SD, Alvarez RC, Perera SM, Kosheleva IV, Grossfield A, Fromme P, Kirian RA, Brown MF. Time-resolved functional expansion of visual rhodopsin detected by x-ray scattering. Biophys J 2022. [DOI: 10.1016/j.bpj.2021.11.1313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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15
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Gao Y, Stachowski TR, Snell EH, Grant TD, Pearson AR. An objective metric to guide background correction and interpretation of small-angle X-ray scattering data. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321094782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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16
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Grant TD. Representing low-resolution electron-density maps from solution scattering data. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321090152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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17
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Ramakrishnan S, Stagno JR, Conrad CE, Ding J, Yu P, Bhandari YR, Lee YT, Pauly G, Yefanov O, Wiedorn MO, Knoska J, Oberthür D, White TA, Barty A, Mariani V, Li C, Brehm W, Heinz WF, Magidson V, Lockett S, Hunter MS, Boutet S, Zatsepin NA, Zuo X, Grant TD, Pandey S, Schmidt M, Spence JCH, Chapman HN, Wang YX. Synchronous RNA conformational changes trigger ordered phase transitions in crystals. Nat Commun 2021; 12:1762. [PMID: 33741910 PMCID: PMC7979858 DOI: 10.1038/s41467-021-21838-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 12/02/2020] [Indexed: 11/20/2022] Open
Abstract
Time-resolved studies of biomacromolecular crystals have been limited to systems involving only minute conformational changes within the same lattice. Ligand-induced changes greater than several angstroms, however, are likely to result in solid-solid phase transitions, which require a detailed understanding of the mechanistic interplay between conformational and lattice transitions. Here we report the synchronous behavior of the adenine riboswitch aptamer RNA in crystal during ligand-triggered isothermal phase transitions. Direct visualization using polarized video microscopy and atomic force microscopy shows that the RNA molecules undergo cooperative rearrangements that maintain lattice order, whose cell parameters change distinctly as a function of time. The bulk lattice order throughout the transition is further supported by time-resolved diffraction data from crystals using an X-ray free electron laser. The synchronous molecular rearrangements in crystal provide the physical basis for studying large conformational changes using time-resolved crystallography and micro/nanocrystals. Time-resolved crystallography (TRX) is used for monitoring only small conformational changes of biomacromolecules within the same lattice. Here, the authors report the interplay between synchronous molecular rearrangements and lattice phase transitions in RNA crystals, providing the basis for the investigation of large conformational changes using TRX.
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Affiliation(s)
| | - Jason R Stagno
- Structural Biophysics Laboratory, National Cancer Institute, Frederick, MD, USA
| | - Chelsie E Conrad
- Structural Biophysics Laboratory, National Cancer Institute, Frederick, MD, USA.,Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Jienyu Ding
- Structural Biophysics Laboratory, National Cancer Institute, Frederick, MD, USA
| | - Ping Yu
- Structural Biophysics Laboratory, National Cancer Institute, Frederick, MD, USA
| | - Yuba R Bhandari
- Structural Biophysics Laboratory, National Cancer Institute, Frederick, MD, USA
| | - Yun-Tzai Lee
- Structural Biophysics Laboratory, National Cancer Institute, Frederick, MD, USA
| | - Gary Pauly
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD, USA
| | - Oleksandr Yefanov
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - Max O Wiedorn
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - Juraj Knoska
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.,Department of Physics, Universität Hamburg, Hamburg, Germany
| | - Dominik Oberthür
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - Thomas A White
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - Anton Barty
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - Valerio Mariani
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - Chufeng Li
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.,Department of Physics, Arizona State University, Tempe, AZ, USA
| | - Wolfgang Brehm
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - William F Heinz
- Optical Microscopy and Analysis Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Valentin Magidson
- Optical Microscopy and Analysis Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Stephen Lockett
- Optical Microscopy and Analysis Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Mark S Hunter
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Sébastien Boutet
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Nadia A Zatsepin
- Department of Physics, Arizona State University, Tempe, AZ, USA.,Department of Chemistry and Physics, ARC Centre of Excellence in Advanced Molecular Imaging, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, 3086, Victoria, Australia
| | - Xiaobing Zuo
- X-ray Science Division, Argonne National Laboratory, Lemont, IL, USA
| | - Thomas D Grant
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, NY, USA
| | - Suraj Pandey
- Kenwood Interdisciplinary Research Complex Physics Department, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Marius Schmidt
- Kenwood Interdisciplinary Research Complex Physics Department, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - John C H Spence
- Department of Physics, Arizona State University, Tempe, AZ, USA
| | - Henry N Chapman
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.,Department of Physics, Universität Hamburg, Hamburg, Germany.,Centre for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany
| | - Yun-Xing Wang
- Structural Biophysics Laboratory, National Cancer Institute, Frederick, MD, USA.
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18
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Grant TD. Reply to: Limitations of the iterative electron density reconstruction algorithm from solution scattering data. Nat Methods 2021; 18:246-248. [PMID: 33649588 PMCID: PMC8284390 DOI: 10.1038/s41592-021-01083-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 02/01/2021] [Indexed: 11/09/2022]
Affiliation(s)
- Thomas D Grant
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, NY, USA.
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19
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Echelmeier A, Cruz Villarreal J, Messerschmidt M, Kim D, Coe JD, Thifault D, Botha S, Egatz-Gomez A, Gandhi S, Brehm G, Conrad CE, Hansen DT, Madsen C, Bajt S, Meza-Aguilar JD, Oberthür D, Wiedorn MO, Fleckenstein H, Mendez D, Knoška J, Martin-Garcia JM, Hu H, Lisova S, Allahgholi A, Gevorkov Y, Ayyer K, Aplin S, Ginn HM, Graafsma H, Morgan AJ, Greiffenberg D, Klujev A, Laurus T, Poehlsen J, Trunk U, Mezza D, Schmidt B, Kuhn M, Fromme R, Sztuk-Dambietz J, Raab N, Hauf S, Silenzi A, Michelat T, Xu C, Danilevski C, Parenti A, Mekinda L, Weinhausen B, Mills G, Vagovic P, Kim Y, Kirkwood H, Bean R, Bielecki J, Stern S, Giewekemeyer K, Round AR, Schulz J, Dörner K, Grant TD, Mariani V, Barty A, Mancuso AP, Weierstall U, Spence JCH, Chapman HN, Zatsepin N, Fromme P, Kirian RA, Ros A. Segmented flow generator for serial crystallography at the European X-ray free electron laser. Nat Commun 2020; 11:4511. [PMID: 32908128 PMCID: PMC7481229 DOI: 10.1038/s41467-020-18156-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 07/23/2020] [Indexed: 12/14/2022] Open
Abstract
Serial femtosecond crystallography (SFX) with X-ray free electron lasers (XFELs) allows structure determination of membrane proteins and time-resolved crystallography. Common liquid sample delivery continuously jets the protein crystal suspension into the path of the XFEL, wasting a vast amount of sample due to the pulsed nature of all current XFEL sources. The European XFEL (EuXFEL) delivers femtosecond (fs) X-ray pulses in trains spaced 100 ms apart whereas pulses within trains are currently separated by 889 ns. Therefore, continuous sample delivery via fast jets wastes >99% of sample. Here, we introduce a microfluidic device delivering crystal laden droplets segmented with an immiscible oil reducing sample waste and demonstrate droplet injection at the EuXFEL compatible with high pressure liquid delivery of an SFX experiment. While achieving ~60% reduction in sample waste, we determine the structure of the enzyme 3-deoxy-D-manno-octulosonate-8-phosphate synthase from microcrystals delivered in droplets revealing distinct structural features not previously reported.
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Affiliation(s)
- Austin Echelmeier
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Jorvani Cruz Villarreal
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Marc Messerschmidt
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA.,European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Daihyun Kim
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Jesse D Coe
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Darren Thifault
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Sabine Botha
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Ana Egatz-Gomez
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Sahir Gandhi
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Gerrit Brehm
- Institute for X-Ray Physics, University of Göttingen, Friedrich-Hund-Platz 1, 37077, Göttingen, Germany
| | - Chelsie E Conrad
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Debra T Hansen
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Caleb Madsen
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Saša Bajt
- Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany.,Centre for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | | | - Dominik Oberthür
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Max O Wiedorn
- Centre for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany.,Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Holger Fleckenstein
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Derek Mendez
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Juraj Knoška
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany.,Department of Physics, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Jose M Martin-Garcia
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Hao Hu
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Stella Lisova
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Aschkan Allahgholi
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Yaroslav Gevorkov
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany.,Hamburg University of Technology, Vision Systems E-2, Harburger Schloßstraße 20, 21079, Hamburg, Germany
| | - Kartik Ayyer
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Steve Aplin
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Helen Mary Ginn
- Division of Structural Biology, University of Oxford, Oxford, OX1 2JD, United Kingdom.,Diamond Light Source Ltd, Didcot, Oxfordshire, OX11 0DE, United Kingdom
| | - Heinz Graafsma
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Andrew J Morgan
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | | | - Alexander Klujev
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Torsten Laurus
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Jennifer Poehlsen
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Ulrich Trunk
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Davide Mezza
- Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland
| | - Bernd Schmidt
- Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland
| | - Manuela Kuhn
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Raimund Fromme
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | | | - Natascha Raab
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Steffen Hauf
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | | | - Chen Xu
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | | | | | | | - Grant Mills
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | - Yoonhee Kim
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | - Richard Bean
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | - Stephan Stern
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany.,Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | | | - Adam R Round
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany.,School of Chemical and Physical Sciences, Keele University, Staffordshire, ST5 5AZ, United Kingdom
| | | | | | - Thomas D Grant
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, 955 Main St, Buffalo, NY, 14203, USA
| | - Valerio Mariani
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Anton Barty
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Adrian P Mancuso
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany.,Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Uwe Weierstall
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - John C H Spence
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Henry N Chapman
- Centre for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany.,Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany.,Department of Physics, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Nadia Zatsepin
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA.,ARC Centre of Excellence in Advanced Molecular Imaging, Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Petra Fromme
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA
| | - Richard A Kirian
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Alexandra Ros
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA. .,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, AZ, 85287-7401, USA.
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20
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Grant TD. AB Initio Electron Density Determination Directly from Solution Scattering Data. Biophys J 2020. [DOI: 10.1016/j.bpj.2019.11.2693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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21
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Gisriel C, Coe J, Letrun R, Yefanov OM, Luna-Chavez C, Stander NE, Lisova S, Mariani V, Kuhn M, Aplin S, Grant TD, Dörner K, Sato T, Echelmeier A, Cruz Villarreal J, Hunter MS, Wiedorn MO, Knoska J, Mazalova V, Roy-Chowdhury S, Yang JH, Jones A, Bean R, Bielecki J, Kim Y, Mills G, Weinhausen B, Meza JD, Al-Qudami N, Bajt S, Brehm G, Botha S, Boukhelef D, Brockhauser S, Bruce BD, Coleman MA, Danilevski C, Discianno E, Dobson Z, Fangohr H, Martin-Garcia JM, Gevorkov Y, Hauf S, Hosseinizadeh A, Januschek F, Ketawala GK, Kupitz C, Maia L, Manetti M, Messerschmidt M, Michelat T, Mondal J, Ourmazd A, Previtali G, Sarrou I, Schön S, Schwander P, Shelby ML, Silenzi A, Sztuk-Dambietz J, Szuba J, Turcato M, White TA, Wrona K, Xu C, Abdellatif MH, Zook JD, Spence JCH, Chapman HN, Barty A, Kirian RA, Frank M, Ros A, Schmidt M, Fromme R, Mancuso AP, Fromme P, Zatsepin NA. Membrane protein megahertz crystallography at the European XFEL. Nat Commun 2019; 10:5021. [PMID: 31685819 PMCID: PMC6828683 DOI: 10.1038/s41467-019-12955-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 10/07/2019] [Indexed: 12/02/2022] Open
Abstract
The world’s first superconducting megahertz repetition rate hard X-ray free-electron laser (XFEL), the European XFEL, began operation in 2017, featuring a unique pulse train structure with 886 ns between pulses. With its rapid pulse rate, the European XFEL may alleviate some of the increasing demand for XFEL beamtime, particularly for membrane protein serial femtosecond crystallography (SFX), leveraging orders-of-magnitude faster data collection. Here, we report the first membrane protein megahertz SFX experiment, where we determined a 2.9 Å-resolution SFX structure of the large membrane protein complex, Photosystem I, a > 1 MDa complex containing 36 protein subunits and 381 cofactors. We address challenges to megahertz SFX for membrane protein complexes, including growth of large quantities of crystals and the large molecular and unit cell size that influence data collection and analysis. The results imply that megahertz crystallography could have an important impact on structure determination of large protein complexes with XFELs. The European X-ray free-electron laser (EuXFEL) in Hamburg is the first XFEL with a megahertz repetition rate. Here the authors present the 2.9 Å structure of the large membrane protein complex Photosystem I from T. elongatus that was determined at the EuXFEL.
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Affiliation(s)
- Chris Gisriel
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Department of Chemistry, Yale University, New Haven, CT, 06520, USA
| | - Jesse Coe
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Romain Letrun
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Oleksandr M Yefanov
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Cesar Luna-Chavez
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Natasha E Stander
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Stella Lisova
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Valerio Mariani
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Manuela Kuhn
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Steve Aplin
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Thomas D Grant
- Hauptman-Woodward Institute, 700 Ellicott St, Buffalo, NY, 14203-1102, USA.,Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, 700 Ellicott St, Buffalo, NY, 14203-1102, USA
| | - Katerina Dörner
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Tokushi Sato
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany.,Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Austin Echelmeier
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Jorvani Cruz Villarreal
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Mark S Hunter
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, 94025, CA, USA
| | - Max O Wiedorn
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany.,Department of Physics, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany.,The Hamburg Centre for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Juraj Knoska
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Victoria Mazalova
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Shatabdi Roy-Chowdhury
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Jay-How Yang
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Alex Jones
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Richard Bean
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Johan Bielecki
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Yoonhee Kim
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Grant Mills
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | - Jose D Meza
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | - Saša Bajt
- Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Gerrit Brehm
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,Institute for X-Ray Physics, University of Göttingen, 37077, Göttingen, Germany.,Center Nanoscale Microscopy and Molecular Physiology of the Brain, Göttingen, Germany
| | - Sabine Botha
- Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | | | - Sandor Brockhauser
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany.,Biological Research Centre, Hungarian Academy of Sciences, Temesvári krt. 62, Szeged, 6726, Hungary
| | - Barry D Bruce
- Department of Biochemistry & Cellular and Molecular Biology, University of Tennessee at Knoxville, Knoxville, TN, USA, 37996.,Program in Energy Science and Engineering, University of Tennessee at Knoxville, Knoxville, TN, USA, 37996.,Department of Microbiology, University of Tennessee at Knoxville, Knoxville, TN, USA, 37996
| | - Matthew A Coleman
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA, 94550, USA
| | | | - Erin Discianno
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA
| | - Zachary Dobson
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Hans Fangohr
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany.,University of Southampton, University Rd, Southampton, SO17 1BJ, UK
| | - Jose M Martin-Garcia
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA
| | - Yaroslav Gevorkov
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany.,Hamburg University of Technology, Vision Systems E-2, Harburger Schloßstraße 20, 21079, Hamburg, Germany
| | - Steffen Hauf
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Ahmad Hosseinizadeh
- Department of Physics, University of Wisconsin-Milwaukee, 3135 N. Maryland Ave, Milwaukee, WI, 53211, USA
| | - Friederike Januschek
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany.,Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Gihan K Ketawala
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Christopher Kupitz
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, 94025, CA, USA.,Department of Physics, University of Wisconsin-Milwaukee, 3135 N. Maryland Ave, Milwaukee, WI, 53211, USA
| | - Luis Maia
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | - Marc Messerschmidt
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.,European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Thomas Michelat
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Jyotirmoy Mondal
- Department of Biochemistry & Cellular and Molecular Biology, University of Tennessee at Knoxville, Knoxville, TN, USA, 37996
| | - Abbas Ourmazd
- Department of Physics, University of Wisconsin-Milwaukee, 3135 N. Maryland Ave, Milwaukee, WI, 53211, USA
| | | | - Iosifina Sarrou
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Silvan Schön
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Peter Schwander
- Department of Physics, University of Wisconsin-Milwaukee, 3135 N. Maryland Ave, Milwaukee, WI, 53211, USA
| | - Megan L Shelby
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA, 94550, USA
| | | | | | - Janusz Szuba
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Monica Turcato
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Thomas A White
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Krzysztof Wrona
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Chen Xu
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Mohamed H Abdellatif
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - James D Zook
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - John C H Spence
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Henry N Chapman
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany.,Department of Physics, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany.,The Hamburg Centre for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Anton Barty
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607, Hamburg, Germany
| | - Richard A Kirian
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA
| | - Matthias Frank
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA, 94550, USA
| | - Alexandra Ros
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Marius Schmidt
- Department of Physics, University of Wisconsin-Milwaukee, 3135 N. Maryland Ave, Milwaukee, WI, 53211, USA
| | - Raimund Fromme
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA.,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA
| | - Adrian P Mancuso
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany.,Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, 3086, Victoria, Australia
| | - Petra Fromme
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA. .,School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287-1604, USA.
| | - Nadia A Zatsepin
- Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ, 85287-5001, USA. .,Department of Physics, Arizona State University, Tempe, AZ, 85287-1504, USA. .,ARC Centre of Excellence in Advanced Molecular Imaging, Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, 3086, Victoria, Australia.
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22
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Echelmeier A, Kim D, Cruz Villarreal J, Coe J, Quintana S, Brehm G, Egatz-Gomez A, Nazari R, Sierra RG, Koglin JE, Batyuk A, Hunter MS, Boutet S, Zatsepin N, Kirian RA, Grant TD, Fromme P, Ros A. 3D printed droplet generation devices for serial femtosecond crystallography enabled by surface coating. J Appl Crystallogr 2019; 52:997-1008. [PMID: 31636518 DOI: 10.1107/s1600576719010343] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 07/19/2019] [Indexed: 11/10/2022] Open
Abstract
The role of surface wetting properties and their impact on the performance of 3D printed microfluidic droplet generation devices for serial femtosecond crystallography (SFX) are reported. SFX is a novel crystallography method enabling structure determination of proteins at room temperature with atomic resolution using X-ray free-electron lasers (XFELs). In SFX, protein crystals in their mother liquor are delivered and intersected with a pulsed X-ray beam using a liquid jet injector. Owing to the pulsed nature of the X-ray beam, liquid jets tend to waste the vast majority of injected crystals, which this work aims to overcome with the delivery of aqueous protein crystal suspension droplets segmented by an oil phase. For this purpose, 3D printed droplet generators that can be easily customized for a variety of XFEL measurements have been developed. The surface properties, in particular the wetting properties of the resist materials compatible with the employed two-photon printing technology, have so far not been characterized extensively, but are crucial for stable droplet generation. This work investigates experimentally the effectiveness and the long-term stability of three different surface treatments on photoresist films and glass as models for our 3D printed droplet generator and the fused silica capillaries employed in the other fluidic components of an SFX experiment. Finally, the droplet generation performance of an assembly consisting of the 3D printed device and fused silica capillaries is examined. Stable and reproducible droplet generation was achieved with a fluorinated surface coating which also allowed for robust downstream droplet delivery. Experimental XFEL diffraction data of crystals formed from the large membrane protein complex photosystem I demonstrate the full compatibility of the new injection method with very fragile membrane protein crystals and show that successful droplet generation of crystal-laden aqueous droplets intersected by an oil phase correlates with increased crystal hit rates.
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Affiliation(s)
- Austin Echelmeier
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA
| | - Daihyun Kim
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA
| | - Jorvani Cruz Villarreal
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA
| | - Jesse Coe
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA
| | - Sebastian Quintana
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA
| | - Gerrit Brehm
- Institute for X-ray Physics, University of Göttingen, Göttingen, Germany
| | - Ana Egatz-Gomez
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA
| | - Reza Nazari
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA.,Department of Physics, Arizona State University, Tempe, Arizona, USA
| | - Raymond G Sierra
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Jason E Koglin
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Alexander Batyuk
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Mark S Hunter
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Sébastien Boutet
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Nadia Zatsepin
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA.,Department of Physics, Arizona State University, Tempe, Arizona, USA
| | - Richard A Kirian
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA.,Department of Physics, Arizona State University, Tempe, Arizona, USA
| | - Thomas D Grant
- Hauptman-Woodward Institute, Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, New York, USA
| | - Petra Fromme
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA
| | - Alexandra Ros
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA.,Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona, USA
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23
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Stachowski TR, Grant TD, Snell EH. Structural consequences on transforming growth factor beta-1 activation from near-therapeutic X-ray doses. Acta Crystallogr A Found Adv 2019. [DOI: 10.1107/s0108767319097708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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24
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Stachowski TR, Grant TD, Snell EH. Structural studies on low-dose X-ray radiation induced transforming growth factor beta-1 (TGFβ-1) activation. Acta Crystallogr A Found Adv 2019. [DOI: 10.1107/s0108767319099173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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25
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Stachowski T, Grant TD, Snell EH. Structural consequences of transforming growth factor beta-1 activation from near-therapeutic X-ray doses. J Synchrotron Radiat 2019; 26:967-979. [PMID: 31274418 PMCID: PMC6613122 DOI: 10.1107/s1600577519005113] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/14/2019] [Indexed: 05/24/2023]
Abstract
Dissociation of transforming growth factor beta-1 (TGFβ-1) from the inhibitory protein latency-associated peptide (LAP) can occur from low doses of X-ray irradiation of the LAP-TGFβ-1 complex, resulting in the activation of TGFβ-1, and can have health-related consequences. Using the tools and knowledge developed in the study of radiation damage in the crystallographic setting, small-angle X-ray scattering (SAXS) and complementary techniques suggest an activation process that is initiated but not driven by the initial X-ray exposure. LAP is revealed to be extended when not bound to TGFβ-1 and has a different structural conformation compared to the bound state. These studies pave the way for the structural understanding of systems impacted at therapeutic X-ray doses and show the potential impact of radiation damage studies beyond their original intent.
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Affiliation(s)
- Timothy Stachowski
- Hauptman–Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA
- Cell Stress Biology, Roswell Park Comprehensive Cancer Center, 665 Elm Street, Buffalo, NY 14203, USA
| | - Thomas D. Grant
- Hauptman–Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA
- Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, 700 Ellicott Street, Buffalo, NY 14203, USA
| | - Edward H. Snell
- Hauptman–Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA
- Materials Design and Innovation, State University of New York at Buffalo, 700 Ellicott Street, Buffalo, NY 14203, USA
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26
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Stauch B, Johansson LC, McCorvy JD, Patel N, Han GW, Huang XP, Gati C, Batyuk A, Slocum ST, Ishchenko A, Brehm W, White TA, Michaelian N, Madsen C, Zhu L, Grant TD, Grandner JM, Shiriaeva A, Olsen RHJ, Tribo AR, Yous S, Stevens RC, Weierstall U, Katritch V, Roth BL, Liu W, Cherezov V. Publisher Correction: Structural basis of ligand recognition at the human MT 1 melatonin receptor. Nature 2019; 569:E6. [PMID: 31048811 DOI: 10.1038/s41586-019-1209-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Change history: In this Letter, the rotation signs around 90°, 135° and 15° were missing and in the HTML, Extended Data Tables 2 and 3 were the wrong tables; these errors have been corrected online.
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Affiliation(s)
- Benjamin Stauch
- Bridge Institute,USC Michelson Center for Convergent Biosciences, University of Southern California, Los Angeles, CA, USA
- Department of Chemistry, University of Southern California, Los Angeles, CA, USA
| | - Linda C Johansson
- Bridge Institute,USC Michelson Center for Convergent Biosciences, University of Southern California, Los Angeles, CA, USA
- Department of Chemistry, University of Southern California, Los Angeles, CA, USA
| | - John D McCorvy
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Nilkanth Patel
- Bridge Institute,USC Michelson Center for Convergent Biosciences, University of Southern California, Los Angeles, CA, USA
- Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA
| | - Gye Won Han
- Bridge Institute,USC Michelson Center for Convergent Biosciences, University of Southern California, Los Angeles, CA, USA
- Department of Chemistry, University of Southern California, Los Angeles, CA, USA
| | - Xi-Ping Huang
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- National Institute of Mental Health Psychoactive Drug Screening Program, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Cornelius Gati
- SLAC National Accelerator Laboratory, Bioscience Division, Menlo Park, CA, USA
- Stanford University, Department of Structural Biology, Stanford, CA, USA
| | - Alexander Batyuk
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Samuel T Slocum
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Andrii Ishchenko
- Bridge Institute,USC Michelson Center for Convergent Biosciences, University of Southern California, Los Angeles, CA, USA
- Department of Chemistry, University of Southern California, Los Angeles, CA, USA
| | - Wolfgang Brehm
- Center for Free-Electron Laser Science, DESY, Hamburg, Germany
| | - Thomas A White
- Center for Free-Electron Laser Science, DESY, Hamburg, Germany
| | - Nairie Michaelian
- Bridge Institute,USC Michelson Center for Convergent Biosciences, University of Southern California, Los Angeles, CA, USA
- Department of Chemistry, University of Southern California, Los Angeles, CA, USA
| | - Caleb Madsen
- Department of Physics, Arizona State University, Tempe, AZ, USA
| | - Lan Zhu
- School of Molecular Sciences and Biodesign Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Thomas D Grant
- Hauptman-Woodward Institute, Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Jessica M Grandner
- Bridge Institute,USC Michelson Center for Convergent Biosciences, University of Southern California, Los Angeles, CA, USA
- Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA
| | - Anna Shiriaeva
- Bridge Institute,USC Michelson Center for Convergent Biosciences, University of Southern California, Los Angeles, CA, USA
- Department of Chemistry, University of Southern California, Los Angeles, CA, USA
| | - Reid H J Olsen
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Alexandra R Tribo
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Saïd Yous
- Univ Lille, Inserm, CHU Lille, UMR-S 1172 - JPArc - Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer, Lille, France
| | - Raymond C Stevens
- Bridge Institute,USC Michelson Center for Convergent Biosciences, University of Southern California, Los Angeles, CA, USA
- Department of Chemistry, University of Southern California, Los Angeles, CA, USA
- Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA
| | - Uwe Weierstall
- Department of Physics, Arizona State University, Tempe, AZ, USA
- School of Molecular Sciences and Biodesign Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Vsevolod Katritch
- Bridge Institute,USC Michelson Center for Convergent Biosciences, University of Southern California, Los Angeles, CA, USA
- Department of Chemistry, University of Southern California, Los Angeles, CA, USA
- Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA
| | - Bryan L Roth
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- National Institute of Mental Health Psychoactive Drug Screening Program, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Wei Liu
- School of Molecular Sciences and Biodesign Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Vadim Cherezov
- Bridge Institute,USC Michelson Center for Convergent Biosciences, University of Southern California, Los Angeles, CA, USA.
- Department of Chemistry, University of Southern California, Los Angeles, CA, USA.
- Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA.
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27
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Nguyen ND, Grant TD. Superposition of Macromolecular Electron‐Density Maps in X‐ray Solution Scattering (SAXS). FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.779.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Thomas D Grant
- Department of Structural BiologyUniversity at Buffalo SUNYBuffaloNY
- Hauptman‐Woodward Medical Research InstituteBuffaloNY
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28
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Jensen SC, Sullivan B, Hartzler D, Aguilar JM, Awel S, Bajt S, Basu S, Bean R, Chapman H, Conrad C, Frank M, Fromme R, Martin-Garcia JM, Grant TD, Heymann M, Hunter MS, Ketawala G, Kirian RA, Knoska J, Kupitz C, Li X, Liang M, Lisova S, Mariani V, Mazalova V, Messerschmidt M, Moran M, Nelson G, Oberthür D, Schaffer A, Sierra RG, Vaughn N, Weierstall U, Wiedorn MO, Xavier L, Yang JH, Yefanov O, Zatsepin NA, Aquila A, Fromme P, Boutet S, Seidler GT, Pushkar Y. X-ray Emission Spectroscopy at X-ray Free Electron Lasers: Limits to Observation of the Classical Spectroscopic Response for Electronic Structure Analysis. J Phys Chem Lett 2019; 10:441-446. [PMID: 30566358 PMCID: PMC7047744 DOI: 10.1021/acs.jpclett.8b03595] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
X-ray free electron lasers (XFELs) provide ultrashort intense X-ray pulses suitable to probe electron dynamics but can also induce a multitude of nonlinear excitation processes. These affect spectroscopic measurements and interpretation, particularly for upcoming brighter XFELs. Here we identify and discuss the limits to observing classical spectroscopy, where only one photon is absorbed per atom for a Mn2+ in a light element (O, C, H) environment. X-ray emission spectroscopy (XES) with different incident photon energies, pulse intensities, and pulse durations is presented. A rate equation model based on sequential ionization and relaxation events is used to calculate populations of multiply ionized states during a single pulse and to explain the observed X-ray induced spectral lines shifts. This model provides easy estimation of spectral shifts, which is essential for experimental designs at XFELs and illustrates that shorter X-ray pulses will not overcome sequential ionization but can reduce electron cascade effects.
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Affiliation(s)
- Scott C Jensen
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA
| | - Brendan Sullivan
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA
| | - Daniel Hartzler
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA
| | - Jose Meza Aguilar
- Biodesign Institute, Arizona State University, Tempe, AZ 85287-7401, USA
| | - Salah Awel
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
- The Hamburg Center for Ultrafast Imaging, Universität Hamburg, 22761 Hamburg, Germany
| | - Saša Bajt
- Photon Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
| | - Shibom Basu
- Paul Sherrer Institut, 5232 Villigen PSI, Switzerland
| | | | - Henry Chapman
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
| | - Chelsie Conrad
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287-7401, USA
| | - Matthias Frank
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Raimund Fromme
- Biodesign Institute, Arizona State University, Tempe, AZ 85287-7401, USA
| | | | - Thomas D Grant
- Hauptman-Woodward Institute, Department of Structural Biology, Jacobs School of Medicine and Biomedical Sciences, SUNY University at Buffalo, Buffalo, NY 14203
- BioXFEL Science and Technology Center, Buffalo, NY 14203, USA
| | - Michael Heymann
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
- Max Planck Institute of Biochemistry, 82152 Planegg, Germany
| | - Mark S. Hunter
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Gihan Ketawala
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287-7401, USA
| | - Richard A Kirian
- Department of Physics, Arizona State University, Tempe, AZ 85287-7401, USA
| | - Juraj Knoska
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
| | - Christopher Kupitz
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA
| | - Xuanxuan Li
- Beijing Computational Science Research Center, Beijing 100193, China
| | - Mengning Liang
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Stella Lisova
- Department of Physics, Arizona State University, Tempe, AZ 85287-7401, USA
| | - Valerio Mariani
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
| | - Victoria Mazalova
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
| | | | - Michael Moran
- Biodesign Institute, Arizona State University, Tempe, AZ 85287-7401, USA
| | - Garrett Nelson
- Department of Physics, Arizona State University, Tempe, AZ 85287-7401, USA
| | - Dominik Oberthür
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
| | - Alex Schaffer
- Department of Biochemistry, University of California Davis, Davis, CA 95616, USA
| | - Raymond G Sierra
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Natalie Vaughn
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287-7401, USA
| | - Uwe Weierstall
- Biodesign Institute, Arizona State University, Tempe, AZ 85287-7401, USA
- Department of Physics, Arizona State University, Tempe, AZ 85287-7401, USA
| | - Max O. Wiedorn
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
| | - Lourdu Xavier
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Jay-How Yang
- Biodesign Institute, Arizona State University, Tempe, AZ 85287-7401, USA
| | - Oleksandr Yefanov
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, D-22607 Hamburg, Germany
| | - Nadia A Zatsepin
- Department of Physics, Arizona State University, Tempe, AZ 85287-7401, USA
| | - Andrew Aquila
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Petra Fromme
- Biodesign Institute, Arizona State University, Tempe, AZ 85287-7401, USA
- School of Molecular Sciences, Arizona State University, Tempe, AZ85287-1604
| | - Sébastien Boutet
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Gerald T Seidler
- Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA
| | - Yulia Pushkar
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USA
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29
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Salas L, Mendez D, Meza-Aguilar JD, Perera SM, Singharoy A, Struts AV, Zatsepin NA, Kirian RA, Grant TD, Fromme P, Brown MF, Grossfield A. Study of Ultra-Fast Rhodopsin Activation Dynamics with Molecular Dynamics Simulations. Biophys J 2019. [DOI: 10.1016/j.bpj.2018.11.1131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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30
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Grant TD. Solving the phase problem in solution scattering. Acta Crystallogr A Found Adv 2018. [DOI: 10.1107/s0108767318098410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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31
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Stagno JR, Bhandari YR, Conrad CE, Grant TD, Fromme P, Hunter MS, Boutet S, Tan K, Zuo X, Ji X, Zatsepin NA, Chapman HN, Spence JCH, Wang YX. Using X-ray free-electron laser to capture intermediate states. Acta Crystallogr A Found Adv 2018. [DOI: 10.1107/s0108767318099841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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32
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Grant TD. Ab initio electron density determination directly from solution scattering data. Nat Methods 2018; 15:191-193. [PMID: 29377013 DOI: 10.1038/nmeth.4581] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 12/18/2017] [Indexed: 11/09/2022]
Abstract
Using a novel iterative structure factor retrieval algorithm, here I show that electron density can be directly calculated from solution scattering data without modeling. The algorithm was validated with experimental data from 12 different biological macromolecules. This approach avoids many of the assumptions limiting the resolution and accuracy of modeling algorithms by explicitly calculating electron density. This algorithm can be applied to a wide variety of molecular systems.
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Affiliation(s)
- Thomas D Grant
- Department of Structural Biology, University at Buffalo, State University of New York, New York, USA.,Hauptman-Woodward Medical Research Institute, Buffalo, New York, USA
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33
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Bailey DC, Drake EJ, Grant TD, Gulick AM. Structural and Functional Characterization of Aerobactin Synthetase IucA from a Hypervirulent Pathotype of Klebsiella pneumoniae. Biochemistry 2016; 55:3559-70. [PMID: 27253399 PMCID: PMC4928626 DOI: 10.1021/acs.biochem.6b00409] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Iron is a vital mineral nutrient required by virtually all life forms to prosper; pathogenic bacteria are no exception. Despite the abundance of iron within the human host, highly regulated iron physiology can result in exceedingly low levels of iron bioavailable to prospective invading bacteria. To combat this scarcity of iron, many pathogenic bacteria have acquired specific and efficient iron acquisition systems, which allow them to thrive in iron-deficient host environments. One of the more prominent bacterial iron acquisition systems involves the synthesis, secretion, and reuptake of small-molecule iron chelators known as siderophores. Aerobactin, a citrate-hydroxamate siderophore originally isolated nearly 50 years ago, is produced by a number of pathogenic Gram-negative bacteria. Aerobactin has recently been demonstrated to play a pivotal role in mediating the enhanced virulence of a particularly invasive pathotype of Klebsiella pneumoniae (hvKP). Toward further understanding of this key virulence factor, we report the structural and functional characterization of aerobactin synthetase IucA from a strain of hvKP. The X-ray crystal structures of unliganded and ATP-bound forms of IucA were solved, forming the foundation of our structural analysis. Small angle X-ray scattering (SAXS) data suggest that, unlike its closest structurally characterized homologues, IucA adopts a tetrameric assembly in solution. Finally, we employed activity assays to investigate the substrate specificity and determine the apparent steady-state kinetic parameters of IucA.
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Affiliation(s)
- Daniel C Bailey
- The Hauptman-Woodward Medical Research Institute , Buffalo, New York, United States
| | - Eric J Drake
- The Hauptman-Woodward Medical Research Institute , Buffalo, New York, United States
| | - Thomas D Grant
- The Hauptman-Woodward Medical Research Institute , Buffalo, New York, United States
| | - Andrew M Gulick
- The Hauptman-Woodward Medical Research Institute , Buffalo, New York, United States
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34
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Pande K, Hutchison CDM, Groenhof G, Aquila A, Robinson JS, Tenboer J, Basu S, Boutet S, DePonte DP, Liang M, White TA, Zatsepin NA, Yefanov O, Morozov D, Oberthuer D, Gati C, Subramanian G, James D, Zhao Y, Koralek J, Brayshaw J, Kupitz C, Conrad C, Roy-Chowdhury S, Coe JD, Metz M, Xavier PL, Grant TD, Koglin JE, Ketawala G, Fromme R, Šrajer V, Henning R, Spence JCH, Ourmazd A, Schwander P, Weierstall U, Frank M, Fromme P, Barty A, Chapman HN, Moffat K, van Thor JJ, Schmidt M. Femtosecond structural dynamics drives the trans/cis isomerization in photoactive yellow protein. Science 2016; 352:725-9. [PMID: 27151871 DOI: 10.1126/science.aad5081] [Citation(s) in RCA: 286] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Accepted: 04/05/2016] [Indexed: 11/02/2022]
Abstract
A variety of organisms have evolved mechanisms to detect and respond to light, in which the response is mediated by protein structural changes after photon absorption. The initial step is often the photoisomerization of a conjugated chromophore. Isomerization occurs on ultrafast time scales and is substantially influenced by the chromophore environment. Here we identify structural changes associated with the earliest steps in the trans-to-cis isomerization of the chromophore in photoactive yellow protein. Femtosecond hard x-ray pulses emitted by the Linac Coherent Light Source were used to conduct time-resolved serial femtosecond crystallography on photoactive yellow protein microcrystals over a time range from 100 femtoseconds to 3 picoseconds to determine the structural dynamics of the photoisomerization reaction.
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Affiliation(s)
- Kanupriya Pande
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA. Center for Free Electron Laser Science, Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | | | - Gerrit Groenhof
- Nanoscience Center and Department of Chemistry, University of Jyväskylä, Post Office Box 35, 40014 Jyväskylä, Finland
| | - Andy Aquila
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Sand Hill Road, Menlo Park, CA 94025, USA
| | - Josef S Robinson
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Sand Hill Road, Menlo Park, CA 94025, USA
| | - Jason Tenboer
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
| | - Shibom Basu
- School of Molecular Sciences and Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287, USA
| | - Sébastien Boutet
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Sand Hill Road, Menlo Park, CA 94025, USA
| | - Daniel P DePonte
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Sand Hill Road, Menlo Park, CA 94025, USA
| | - Mengning Liang
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Sand Hill Road, Menlo Park, CA 94025, USA
| | - Thomas A White
- Center for Free Electron Laser Science, Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Nadia A Zatsepin
- Department of Physics, Arizona State University, Tempe, AZ 85287, USA
| | - Oleksandr Yefanov
- Center for Free Electron Laser Science, Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Dmitry Morozov
- Nanoscience Center and Department of Chemistry, University of Jyväskylä, Post Office Box 35, 40014 Jyväskylä, Finland
| | - Dominik Oberthuer
- Center for Free Electron Laser Science, Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Cornelius Gati
- Center for Free Electron Laser Science, Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | | | - Daniel James
- Department of Physics, Arizona State University, Tempe, AZ 85287, USA
| | - Yun Zhao
- Department of Physics, Arizona State University, Tempe, AZ 85287, USA
| | - Jake Koralek
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Sand Hill Road, Menlo Park, CA 94025, USA
| | - Jennifer Brayshaw
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
| | - Christopher Kupitz
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
| | - Chelsie Conrad
- School of Molecular Sciences and Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287, USA
| | - Shatabdi Roy-Chowdhury
- School of Molecular Sciences and Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287, USA
| | - Jesse D Coe
- School of Molecular Sciences and Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287, USA
| | - Markus Metz
- Center for Free Electron Laser Science, Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Paulraj Lourdu Xavier
- Center for Free Electron Laser Science, Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany. IMPRS-UFAST, Max Planck Institute for Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Thomas D Grant
- Hauptman-Woodward Institute, State University of New York at Buffalo, 700 Ellicott Street, Buffalo, NY 14203, USA
| | - Jason E Koglin
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Sand Hill Road, Menlo Park, CA 94025, USA
| | - Gihan Ketawala
- School of Molecular Sciences and Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287, USA
| | - Raimund Fromme
- School of Molecular Sciences and Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287, USA
| | - Vukica Šrajer
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA
| | - Robert Henning
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA
| | - John C H Spence
- Department of Physics, Arizona State University, Tempe, AZ 85287, USA
| | - Abbas Ourmazd
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
| | - Peter Schwander
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
| | - Uwe Weierstall
- Department of Physics, Arizona State University, Tempe, AZ 85287, USA
| | - Matthias Frank
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Petra Fromme
- School of Molecular Sciences and Biodesign Center for Applied Structural Discovery, Arizona State University, Tempe, AZ 85287, USA
| | - Anton Barty
- Center for Free Electron Laser Science, Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Henry N Chapman
- Center for Free Electron Laser Science, Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany. Center for Ultrafast Imaging, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Keith Moffat
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA. Department of Biochemistry and Molecular Biology and Institute for Biophysical Dynamics, University of Chicago, Chicago, IL 60637, USA
| | - Jasper J van Thor
- Faculty of Natural Sciences, Department of Life Sciences, Imperial College, London SW7 2AZ, UK
| | - Marius Schmidt
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
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Monteiro DCF, Patel V, Bartlett CP, Nozaki S, Grant TD, Gowdy JA, Thompson GS, Kalverda AP, Snell EH, Niki H, Pearson AR, Webb ME. The structure of the PanD/PanZ protein complex reveals negative feedback regulation of pantothenate biosynthesis by coenzyme A. ACTA ACUST UNITED AC 2016; 22:492-503. [PMID: 25910242 PMCID: PMC4410942 DOI: 10.1016/j.chembiol.2015.03.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 03/24/2015] [Accepted: 03/25/2015] [Indexed: 11/10/2022]
Abstract
Coenzyme A (CoA) is an ubiquitous and essential cofactor, synthesized from the precursor pantothenate. Vitamin biosynthetic pathways are normally tightly regulated, including the pathway from pantothenate to CoA. However, no regulation of pantothenate biosynthesis has been identified. We have recently described an additional component in the pantothenate biosynthetic pathway, PanZ, which promotes the activation of the zymogen, PanD, to form aspartate α-decarboxylase (ADC) in a CoA-dependent manner. Here we report the structure of PanZ in complex with PanD, which reveals the structural basis for the CoA dependence of this interaction and activation. In addition, we show that PanZ acts as a CoA-dependent inhibitor of ADC catalysis. This inhibitory effect can effectively regulate the biosynthetic pathway to pantothenate, and thereby also regulate CoA biosynthesis. This represents a previously unobserved mode of metabolic regulation whereby a cofactor-utilizing protein negatively regulates the biosynthesis of the same cofactor. Structure of the PanD-PanZ.AcCoA complex is reported at a resolution of 1.6 Å Binding of AcCoA to PanZ is required to form the PanZ/PanD interface PanZ.AcCoA activates PanD via selection of a reactive conformation of PanD PanZ.AcCoA inhibits the activated enzyme, regulating pantothenate biosynthesis
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Affiliation(s)
- Diana C F Monteiro
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK; School of Chemistry, University of Leeds, Leeds LS2 9JT, UK; Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Vijay Patel
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK; Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Christopher P Bartlett
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK; Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Shingo Nozaki
- Microbial Genetics Laboratory, Genetic Strains Research Center, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Thomas D Grant
- Hauptmann-Woodward Medical Research Institute, Buffalo, NY 14203, USA
| | - James A Gowdy
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK; School of Chemistry, University of Leeds, Leeds LS2 9JT, UK; Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Gary S Thompson
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK; Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Arnout P Kalverda
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK; Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Edward H Snell
- Hauptmann-Woodward Medical Research Institute, Buffalo, NY 14203, USA
| | - Hironori Niki
- Microbial Genetics Laboratory, Genetic Strains Research Center, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan; Department of Genetics, Graduate University for Advanced Studies (Sokendai), 1111 Yata, Mishima, Shizuoka 411-8540, Japan
| | - Arwen R Pearson
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK; Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK.
| | - Michael E Webb
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK; School of Chemistry, University of Leeds, Leeds LS2 9JT, UK.
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36
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Monteiro DCF, Patel V, Bartlett CP, Nozaki S, Grant TD, Gowdy JA, Thompson GS, Kalverda AP, Snell EH, Niki H, Pearson AR, Webb ME. Towards a generalised approach for the time-resolved crystallographic study of enzymes. Acta Crystallogr A Found Adv 2015. [DOI: 10.1107/s205327331509957x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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37
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Abdallah BG, Zatsepin NA, Roy-Chowdhury S, Coe J, Conrad CE, Dörner K, Sierra RG, Stevenson HP, Camacho-Alanis F, Grant TD, Nelson G, James D, Calero G, Wachter RM, Spence JCH, Weierstall U, Fromme P, Ros A. Microfluidic sorting of protein nanocrystals by size for X-ray free-electron laser diffraction. Struct Dyn 2015; 2:041719. [PMID: 26798818 PMCID: PMC4711642 DOI: 10.1063/1.4928688] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 08/05/2015] [Indexed: 05/23/2023]
Abstract
The advent and application of the X-ray free-electron laser (XFEL) has uncovered the structures of proteins that could not previously be solved using traditional crystallography. While this new technology is powerful, optimization of the process is still needed to improve data quality and analysis efficiency. One area is sample heterogeneity, where variations in crystal size (among other factors) lead to the requirement of large data sets (and thus 10-100 mg of protein) for determining accurate structure factors. To decrease sample dispersity, we developed a high-throughput microfluidic sorter operating on the principle of dielectrophoresis, whereby polydisperse particles can be transported into various fluid streams for size fractionation. Using this microsorter, we isolated several milliliters of photosystem I nanocrystal fractions ranging from 200 to 600 nm in size as characterized by dynamic light scattering, nanoparticle tracking, and electron microscopy. Sorted nanocrystals were delivered in a liquid jet via the gas dynamic virtual nozzle into the path of the XFEL at the Linac Coherent Light Source. We obtained diffraction to ∼4 Å resolution, indicating that the small crystals were not damaged by the sorting process. We also observed the shape transforms of photosystem I nanocrystals, demonstrating that our device can optimize data collection for the shape transform-based phasing method. Using simulations, we show that narrow crystal size distributions can significantly improve merged data quality in serial crystallography. From this proof-of-concept work, we expect that the automated size-sorting of protein crystals will become an important step for sample production by reducing the amount of protein needed for a high quality final structure and the development of novel phasing methods that exploit inter-Bragg reflection intensities or use variations in beam intensity for radiation damage-induced phasing. This method will also permit an analysis of the dependence of crystal quality on crystal size.
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Affiliation(s)
| | | | | | | | | | | | - Raymond G Sierra
- Stanford PULSE Institute, SLAC National Accelerator Laboratory , Menlo Park, California 94025, USA
| | - Hilary P Stevenson
- Department of Structural Biology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania 15261, USA
| | - Fernanda Camacho-Alanis
- Department of Chemistry and Biochemistry, Arizona State University , Tempe, Arizona 85287, USA
| | - Thomas D Grant
- Hauptman-Woodward Medical Research Institute, University at Buffalo , Buffalo, New York 14203, USA
| | | | | | - Guillermo Calero
- Department of Structural Biology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania 15261, USA
| | - Rebekka M Wachter
- Department of Chemistry and Biochemistry, Arizona State University , Tempe, Arizona 85287, USA
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38
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Lawrence RM, Conrad CE, Zatsepin NA, Grant TD, Liu H, James D, Nelson G, Subramanian G, Aquila A, Hunter MS, Liang M, Boutet S, Coe J, Spence JCH, Weierstall U, Liu W, Fromme P, Cherezov V, Hogue BG. Serial femtosecond X-ray diffraction of enveloped virus microcrystals. Struct Dyn 2015; 2:041720. [PMID: 26798819 PMCID: PMC4711640 DOI: 10.1063/1.4929410] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 08/12/2015] [Indexed: 05/22/2023]
Abstract
Serial femtosecond crystallography (SFX) using X-ray free-electron lasers has produced high-resolution, room temperature, time-resolved protein structures. We report preliminary SFX of Sindbis virus, an enveloped icosahedral RNA virus with ∼700 Å diameter. Microcrystals delivered in viscous agarose medium diffracted to ∼40 Å resolution. Small-angle diffuse X-ray scattering overlaid Bragg peaks and analysis suggests this results from molecular transforms of individual particles. Viral proteins undergo structural changes during entry and infection, which could, in principle, be studied with SFX. This is an important step toward determining room temperature structures from virus microcrystals that may enable time-resolved studies of enveloped viruses.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Andrew Aquila
- Linac Coherent Light Source, SLAC National Accelerator Laboratory , Menlo Park, California 94025, USA
| | - Mark S Hunter
- Linac Coherent Light Source, SLAC National Accelerator Laboratory , Menlo Park, California 94025, USA
| | - Mengning Liang
- Linac Coherent Light Source, SLAC National Accelerator Laboratory , Menlo Park, California 94025, USA
| | - Sébastien Boutet
- Linac Coherent Light Source, SLAC National Accelerator Laboratory , Menlo Park, California 94025, USA
| | | | | | | | | | | | - Vadim Cherezov
- Department of Chemistry, Bridge Institute, University of Southern California , Los Angeles, California 90089, USA
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39
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Rossi P, Shi L, Liu G, Barbieri CM, Lee HW, Grant TD, Luft JR, Xiao R, Acton TB, Snell EH, Montelione GT, Baker D, Lange OF, Sgourakis NG. A hybrid NMR/SAXS-based approach for discriminating oligomeric protein interfaces using Rosetta. Proteins 2015; 83:309-17. [PMID: 25388768 PMCID: PMC5061451 DOI: 10.1002/prot.24719] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 10/10/2014] [Accepted: 10/29/2014] [Indexed: 01/26/2023]
Abstract
Oligomeric proteins are important targets for structure determination in solution. While in most cases the fold of individual subunits can be determined experimentally, or predicted by homology-based methods, protein-protein interfaces are challenging to determine de novo using conventional NMR structure determination protocols. Here we focus on a member of the bet-V1 superfamily, Aha1 from Colwellia psychrerythraea. This family displays a broad range of crystallographic interfaces none of which can be reconciled with the NMR and SAXS data collected for Aha1. Unlike conventional methods relying on a dense network of experimental restraints, the sparse data are used to limit conformational search during optimization of a physically realistic energy function. This work highlights a new approach for studying minor conformational changes due to structural plasticity within a single dimeric interface in solution.
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Affiliation(s)
- Paolo Rossi
- Department of Molecular Biology and Biochemistry, Center for Advanced Biotechnology and Medicine, and Northeast Structural Genomics Consortium, Rutgers University, Piscataway, New Jersey 08854
| | - Lei Shi
- Department of Biochemistry, University of Washington, Seattle, Washington 98195
| | - Gaohua Liu
- Department of Molecular Biology and Biochemistry, Center for Advanced Biotechnology and Medicine, and Northeast Structural Genomics Consortium, Rutgers University, Piscataway, New Jersey 08854
| | - Christopher M. Barbieri
- Department of Molecular Biology and Biochemistry, Center for Advanced Biotechnology and Medicine, and Northeast Structural Genomics Consortium, Rutgers University, Piscataway, New Jersey 08854
| | - Hsiau-Wei Lee
- Department of Chemistry, Complex Carbohydrate Research Center, and Northeast Structural Genomics Consortium, University of Georgia, Athens, Georgia 30602
- Department of Biochemistry & Molecular Biology, Complex Carbohydrate Research Center, and Northeast Structural Genomics Consortium, University of Georgia, Athens, Georgia 30602
| | - Thomas D. Grant
- Hauptman–Woodward Medical Research Institute, and Northeast Structural Genomics Consortium, Buffalo, New York 14203
- SUNY Buffalo Department of Structural Biology, Buffalo, New York 14203
| | - Joseph R. Luft
- Hauptman–Woodward Medical Research Institute, and Northeast Structural Genomics Consortium, Buffalo, New York 14203
- SUNY Buffalo Department of Structural Biology, Buffalo, New York 14203
| | - Rong Xiao
- Department of Molecular Biology and Biochemistry, Center for Advanced Biotechnology and Medicine, and Northeast Structural Genomics Consortium, Rutgers University, Piscataway, New Jersey 08854
| | - Thomas B. Acton
- Department of Molecular Biology and Biochemistry, Center for Advanced Biotechnology and Medicine, and Northeast Structural Genomics Consortium, Rutgers University, Piscataway, New Jersey 08854
| | - Edward H. Snell
- Hauptman–Woodward Medical Research Institute, and Northeast Structural Genomics Consortium, Buffalo, New York 14203
- SUNY Buffalo Department of Structural Biology, Buffalo, New York 14203
| | - Gaetano T. Montelione
- Department of Molecular Biology and Biochemistry, Center for Advanced Biotechnology and Medicine, and Northeast Structural Genomics Consortium, Rutgers University, Piscataway, New Jersey 08854
- Department of Biochemistry, Robert Wood Johnson Medical School, Rutgers, the State University of New Jersey, Piscataway, New Jersey 08854
| | - David Baker
- Department of Biochemistry, University of Washington, Seattle, Washington 98195
- Howard Hughes Medical Institute, University of Washington, Seattle, Washington 98195
| | - Oliver F. Lange
- Department of Biochemistry, University of Washington, Seattle, Washington 98195
| | - Nikolaos G. Sgourakis
- Department of Biochemistry, University of Washington, Seattle, Washington 98195
- Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
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40
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Grant TD, Luft JR, Carter LG, Matsui T, Weiss TM, Martel A, Snell EH. The accurate assessment of small-angle X-ray scattering data. ACTA ACUST UNITED AC 2015; 71:45-56. [PMID: 25615859 PMCID: PMC4304685 DOI: 10.1107/s1399004714010876] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 05/12/2014] [Indexed: 12/05/2022]
Abstract
A set of quantitative techniques is suggested for assessing SAXS data quality. These are applied in the form of a script, SAXStats, to a test set of 27 proteins, showing that these techniques are more sensitive than manual assessment of data quality. Small-angle X-ray scattering (SAXS) has grown in popularity in recent times with the advent of bright synchrotron X-ray sources, powerful computational resources and algorithms enabling the calculation of increasingly complex models. However, the lack of standardized data-quality metrics presents difficulties for the growing user community in accurately assessing the quality of experimental SAXS data. Here, a series of metrics to quantitatively describe SAXS data in an objective manner using statistical evaluations are defined. These metrics are applied to identify the effects of radiation damage, concentration dependence and interparticle interactions on SAXS data from a set of 27 previously described targets for which high-resolution structures have been determined via X-ray crystallography or nuclear magnetic resonance (NMR) spectroscopy. The studies show that these metrics are sufficient to characterize SAXS data quality on a small sample set with statistical rigor and sensitivity similar to or better than manual analysis. The development of data-quality analysis strategies such as these initial efforts is needed to enable the accurate and unbiased assessment of SAXS data quality.
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Affiliation(s)
- Thomas D Grant
- Hauptman-Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA
| | - Joseph R Luft
- Hauptman-Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA
| | - Lester G Carter
- Stanford Synchrotron Radiation Lightsource, 2575 Sand Hill Road, MS69, Menlo Park, CA 94025, USA
| | - Tsutomu Matsui
- Stanford Synchrotron Radiation Lightsource, 2575 Sand Hill Road, MS69, Menlo Park, CA 94025, USA
| | - Thomas M Weiss
- Stanford Synchrotron Radiation Lightsource, 2575 Sand Hill Road, MS69, Menlo Park, CA 94025, USA
| | - Anne Martel
- Stanford Synchrotron Radiation Lightsource, 2575 Sand Hill Road, MS69, Menlo Park, CA 94025, USA
| | - Edward H Snell
- Hauptman-Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA
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41
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Bruno AE, Ruby AM, Luft JR, Grant TD, Seetharaman J, Montelione GT, Hunt JF, Snell EH. Comparing chemistry to outcome: the development of a chemical distance metric, coupled with clustering and hierarchal visualization applied to macromolecular crystallography. PLoS One 2014; 9:e100782. [PMID: 24971458 PMCID: PMC4074061 DOI: 10.1371/journal.pone.0100782] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 05/28/2014] [Indexed: 11/18/2022] Open
Abstract
Many bioscience fields employ high-throughput methods to screen multiple biochemical conditions. The analysis of these becomes tedious without a degree of automation. Crystallization, a rate limiting step in biological X-ray crystallography, is one of these fields. Screening of multiple potential crystallization conditions (cocktails) is the most effective method of probing a proteins phase diagram and guiding crystallization but the interpretation of results can be time-consuming. To aid this empirical approach a cocktail distance coefficient was developed to quantitatively compare macromolecule crystallization conditions and outcome. These coefficients were evaluated against an existing similarity metric developed for crystallization, the C6 metric, using both virtual crystallization screens and by comparison of two related 1,536-cocktail high-throughput crystallization screens. Hierarchical clustering was employed to visualize one of these screens and the crystallization results from an exopolyphosphatase-related protein from Bacteroides fragilis, (BfR192) overlaid on this clustering. This demonstrated a strong correlation between certain chemically related clusters and crystal lead conditions. While this analysis was not used to guide the initial crystallization optimization, it led to the re-evaluation of unexplained peaks in the electron density map of the protein and to the insertion and correct placement of sodium, potassium and phosphate atoms in the structure. With these in place, the resulting structure of the putative active site demonstrated features consistent with active sites of other phosphatases which are involved in binding the phosphoryl moieties of nucleotide triphosphates. The new distance coefficient, CDcoeff, appears to be robust in this application, and coupled with hierarchical clustering and the overlay of crystallization outcome, reveals information of biological relevance. While tested with a single example the potential applications related to crystallography appear promising and the distance coefficient, clustering, and hierarchal visualization of results undoubtedly have applications in wider fields.
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Affiliation(s)
- Andrew E. Bruno
- Center for Computational Research, State University of New York (SUNY), Buffalo, New York, United States of America
| | - Amanda M. Ruby
- Center for Computational Research, State University of New York (SUNY), Buffalo, New York, United States of America
| | - Joseph R. Luft
- Hauptman-Woodward Medical Research Institute, Buffalo, New York, United States of America
- SUNY Buffalo Dept. of Structural Biology, Buffalo, New York, United States of America
| | - Thomas D. Grant
- Hauptman-Woodward Medical Research Institute, Buffalo, New York, United States of America
| | - Jayaraman Seetharaman
- Department of Biological Sciences, The Northeast Structural Genomics Consortium, Columbia University, New York, New York, United States of America
| | - Gaetano T. Montelione
- Northeast Structural Genomics Consortium, Department of Molecular Biology and Biochemistry, Center for Advanced Biotechnology and Medicine and Department of Biochemistry, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, New Jersey, United States of America
| | - John F. Hunt
- Department of Biological Sciences, The Northeast Structural Genomics Consortium, Columbia University, New York, New York, United States of America
| | - Edward H. Snell
- Hauptman-Woodward Medical Research Institute, Buffalo, New York, United States of America
- SUNY Buffalo Dept. of Structural Biology, Buffalo, New York, United States of America
- * E-mail:
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42
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Abstract
X-ray crystallography typically requires the mounting of crystals, which can make the sample difficult to manipulate when it is small and the microscope objective is close to the crystallization plate. By simply moving the objective to the bottom of a clear crystallization plate (inverting the normal view), crystals were able to be manipulated and harvested from wells having a 0.9 mm diameter and 5.0 mm depth. The mounting system enabled the structural solution of the 187 amino acid N-terminal domain of Saccharomyces cerevisiae glutaminyl-tRNA synthetase from crystals that appeared during high-throughput screening but proved recalcitrant to scale-up and optimization. While not a general mounting solution, the simple expedient of removing the objective lens from the area where manipulation and harvesting occur greatly facilitates the manual, or even automated, process.
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Affiliation(s)
- Joseph R Luft
- Hauptman-Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA
| | - Thomas D Grant
- Hauptman-Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA
| | - Jennifer R Wolfley
- Hauptman-Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA
| | - Edward H Snell
- Hauptman-Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA ; Department of Structural Biology, SUNY Buffalo, 700 Ellicott Street, Buffalo, NY 14203, USA
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Grant TD, Luft JR, Wolfley JR, Snell ME, Tsuruta H, Corretore S, Quartley E, Phizicky EM, Grayhack EJ, Snell EH. The structure of yeast glutaminyl-tRNA synthetase and modeling of its interaction with tRNA. J Mol Biol 2013; 425:2480-93. [PMID: 23583912 DOI: 10.1016/j.jmb.2013.03.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 02/25/2013] [Accepted: 03/30/2013] [Indexed: 11/26/2022]
Abstract
Eukaryotic glutaminyl-tRNA synthetase (GlnRS) contains an appended N-terminal domain (NTD) whose precise function is unknown. Although GlnRS structures from two prokaryotic species are known, no eukaryotic GlnRS structure has been reported. Here we present the first crystallographic structure of yeast GlnRS, finding that the structure of the C-terminal domain is highly similar to Escherichia coli GlnRS but that 214 residues, including the NTD, are crystallographically disordered. We present a model of the full-length enzyme in solution, using the structures of the C-terminal domain, and the isolated NTD, with small-angle X-ray scattering data of the full-length molecule. We proceed to model the enzyme bound to tRNA, using the crystallographic structures of GatCAB and GlnRS-tRNA complex from bacteria. We contrast the tRNA-bound model with the tRNA-free solution state and perform molecular dynamics on the full-length GlnRS-tRNA complex, which suggests that tRNA binding involves the motion of a conserved hinge in the NTD.
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Affiliation(s)
- Thomas D Grant
- Hauptman Woodward Medical Research Institute, 700 Ellicott Street, Buffalo, NY 14203, USA
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Grant TD, Snell EH, Luft JR, Quartley E, Corretore S, Wolfley JR, Snell ME, Hadd A, Perona JJ, Phizicky EM, Grayhack EJ. Structural conservation of an ancient tRNA sensor in eukaryotic glutaminyl-tRNA synthetase. Nucleic Acids Res 2011; 40:3723-31. [PMID: 22180531 PMCID: PMC3333875 DOI: 10.1093/nar/gkr1223] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
In all organisms, aminoacyl tRNA synthetases covalently attach amino acids to their cognate tRNAs. Many eukaryotic tRNA synthetases have acquired appended domains, whose origin, structure and function are poorly understood. The N-terminal appended domain (NTD) of glutaminyl-tRNA synthetase (GlnRS) is intriguing since GlnRS is primarily a eukaryotic enzyme, whereas in other kingdoms Gln-tRNAGln is primarily synthesized by first forming Glu-tRNAGln, followed by conversion to Gln-tRNAGln by a tRNA-dependent amidotransferase. We report a functional and structural analysis of the NTD of Saccharomyces cerevisiae GlnRS, Gln4. Yeast mutants lacking the NTD exhibit growth defects, and Gln4 lacking the NTD has reduced complementarity for tRNAGln and glutamine. The 187-amino acid Gln4 NTD, crystallized and solved at 2.3 Å resolution, consists of two subdomains, each exhibiting an extraordinary structural resemblance to adjacent tRNA specificity-determining domains in the GatB subunit of the GatCAB amidotransferase, which forms Gln-tRNAGln. These subdomains are connected by an apparent hinge comprised of conserved residues. Mutation of these amino acids produces Gln4 variants with reduced affinity for tRNAGln, consistent with a hinge-closing mechanism proposed for GatB recognition of tRNA. Our results suggest a possible origin and function of the NTD that would link the phylogenetically diverse mechanisms of Gln-tRNAGln synthesis.
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Affiliation(s)
- Thomas D Grant
- Hauptman-Woodward Medical Research Institute, Buffalo, NY 14203, USA
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Grant TD, Luft JR, Wolfley JR, Tsuruta H, Martel A, Montelione GT, Snell EH. Small angle X-ray scattering as a complementary tool for high-throughput structural studies. Biopolymers 2011; 95:517-30. [PMID: 21462184 DOI: 10.1002/bip.21630] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 03/11/2011] [Accepted: 03/14/2011] [Indexed: 11/07/2022]
Abstract
Structural crystallography and nuclear magnetic resonance (NMR) spectroscopy are the predominant techniques for understanding the biological world on a molecular level. Crystallography is constrained by the ability to form a crystal that diffracts well and NMR is constrained to smaller proteins. Although powerful techniques, they leave many soluble, purified structurally uncharacterized protein samples. Small angle X-ray scattering (SAXS) is a solution technique that provides data on the size and multiple conformations of a sample, and can be used to reconstruct a low-resolution molecular envelope of a macromolecule. In this study, SAXS has been used in a high-throughput manner on a subset of 28 proteins, where structural information is available from crystallographic and/or NMR techniques. These crystallographic and NMR structures were used to validate the accuracy of molecular envelopes reconstructed from SAXS data on a statistical level, to compare and highlight complementary structural information that SAXS provides, and to leverage biological information derived by crystallographers and spectroscopists from their structures. All the ab initio molecular envelopes calculated from the SAXS data agree well with the available structural information. SAXS is a powerful albeit low-resolution technique that can provide additional structural information in a high-throughput and complementary manner to improve the functional interpretation of high-resolution structures.
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Affiliation(s)
- Thomas D Grant
- Hauptman-Woodward Medical Research Institute, 700 Ellicott St., Buffalo, NY 14203, USA
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Cho JY, Grant TD, Lunstrum GP, Horton WA. Col2-GFP reporter mouse--a new tool to study skeletal development. Am J Med Genet 2002; 106:251-3. [PMID: 11891675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Transgenic mice were generated that harbor a Col2-GFP reporter that marks chondrocytes and their immediate precursors during skeletal development. Cells engaged in chondrogenesis were identified by conventional fluorescence microscopy and confocal optical sectioning within their native environments in live embryos and in thick tissue slices. The use of these mice offers a novel approach for studying the role of chondrocytes in skeletal development.
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Affiliation(s)
- J Y Cho
- Research Center, Shriners Hospital for Children, Portland, OR 97201, USA
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Abstract
The large intestine of mammals has long been viewed as an osmoregulatory organ, and evidence suggests that fluid and solute transport mechanisms within the intestine are heterogeneous, varying depending on the particular segment involved. Variations in function are often matched by morphological correlates, but despite the widespread use of rabbit large intestine as an experimental model, there is a lack of knowledge about the cellular makeup and dynamics in the colonic mucosal epithelium. The presence of mitotic figures and immunohistochemical localization of proliferating cell nuclear antigen (PCNA) were used to identify the proliferative zone(s). Cellular migration patterns were determined through the use of the thymidine analog 5-bromo-2-deoxyuridine (BrdU) over a 24-, 48-, and 72-hr period. Apoptotic nuclei were identified utilizing terminal deoxynucleotidyl transferase d-UTP nick-end labeling (TUNEL). Both cecum and the initial portion of the proximal colon (P1) exhibited a proliferative zone at or near the crypt base, and migration proceeded upwards toward the surface epithelium lining the intestinal lumen, where apoptosis occurred Turnover time of crypt columnar cells was determined to be about 3 days; that of mucous cells was estimated to be about 5 weeks. Rabbit cecum and proximal colon P1 are similar in their cellular morphology and epithelial cell kinetics. In both, the major proliferative zone is located at or near the crypt base, from which crypt columnar cells migrate toward the lumenal surface epithelium over a period of 3 days. Goblet cell turnover rate is much slower than that of columnar cells.
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Affiliation(s)
- T D Grant
- Department of Molecular and Cellular Physiology, Louisiana State University Medical Center, Shreveport, Louisiana 71130, USA
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Abstract
Mice were generated in which a Col2-GFP transgene serves as a reporter for the chondrocyte lineage and for chondrogenesis in live embryos and newborn pups. Cells actively engaged in chondrogenesis were identified by confocal optical sectioning within their native environments in embryos and in thick tissue slices. Chondrocytes exhibiting GFP fluorescence were purified from rib cages by high-speed cell sorting of crude cell suspensions. Intensity of fluorescence correlated with biosynthesis of procollagen II in these cells. The use of these mice and their cells provides a novel approach for studying chondrocyte differentiation and chondrogenesis during skeletal development.
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Affiliation(s)
- T D Grant
- Research Center, Shriners Hospital for Children, Portland, OR 97201, USA
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Abstract
Previous studies of colonic epithelial cell kinetics in mice and rats revealed a pattern similar to small intestine, where basally located stem cells proliferate, differentiating as they migrate towards the surface epithelium. Vacuolated and goblet cells are assumed to co-migrate at the same rate. The present study indicates that rabbit distal colon has more complicated epithelial cell kinetics. The zone of proliferation was detected immunohistochemically using proliferating cell nuclear antigen (PCNA) and confirmed with the use of colchicine to arrest dividing cells in metaphase. Migrating cells were tracked from the zero-hour position (PCNA labeling, mitosis) to positions 24, 48, 72 hrs by monitoring cell migration with the thymidine analog 5-Bromo-2-Deoxyuridine (BrdU). PCNA revealed a major proliferative zone in the upper third of the crypt column and the presence of mitotic figures after colchicine corroborated these results. Differentiated vacuolated cell proliferation was detected at three crypt sites: base, middle, and top of the crypt, while columnar cells arose from a population of dividing cells at the top of the crypt. Turnover of columnar and vacuolated cells occurred within 72 hrs. Goblet cells exhibited maximal proliferation at the crypt base and migrated at a much slower rate than the other cell types. In rabbit distal colon, populations of proliferating cells exist at multiple levels of the crypt column. Vacuolated and goblet cells differ in their labeling indices and migration rates, suggesting that the two cell types arise and migrate independently.
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Affiliation(s)
- T D Grant
- Department of Cellular Biology and Anatomy, Louisiana State University Medical Center, Shreveport 71130, USA
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Laderoute KR, Ausserer WA, Knapp AM, Grant TD, Sutherland RM. Epidermal growth factor modifies cell cycle control in A431 human squamous carcinoma cells damaged by ionizing radiation. Cancer Res 1994; 54:1407-11. [PMID: 8137238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Epidermal growth factor (EGF) has been shown to radiosensitize A431 and other human squamous carcinoma cells with high numbers of surface EGF receptors. In this study of the mechanistic basis of EGF-induced radiosensitization, both EGF and ionizing radiation caused G1 phase arrests in cycling A431 cells, but only radiation caused a G2-M arrest. However, EGF enhanced the magnitude of this G2-M arrest, suggesting an interaction of signaling pathways involved in cellular responses to EGF and radiation damage. EGF and radiation also uniquely perturbed cyclin A and B1 mRNA levels during the time of maximum radiation-induced G2-M arrest. The effects of EGF on G2-M events probably originated in cells in G1. It is possible that aberrant EGF signal transduction in human squamous carcinoma cells may be exploited as a novel strategy for radiotherapy.
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Affiliation(s)
- K R Laderoute
- Life Sciences Division, SRI International, Menlo Park, California 94025
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