1
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Keown JR, Crawshaw AD, Trincao J, Carrique L, Gildea RJ, Horrell S, Warren AJ, Axford D, Owen R, Evans G, Bézier A, Metcalf P, Grimes JM. Atomic structure of a nudivirus occlusion body protein determined from a 70-year-old crystal sample. Nat Commun 2023; 14:4160. [PMID: 37443157 PMCID: PMC10345106 DOI: 10.1038/s41467-023-39819-1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
Infectious protein crystals are an essential part of the viral lifecycle for double-stranded DNA Baculoviridae and double-stranded RNA cypoviruses. These viral protein crystals, termed occlusion bodies or polyhedra, are dense protein assemblies that form a crystalline array, encasing newly formed virions. Here, using X-ray crystallography we determine the structure of a polyhedrin from Nudiviridae. This double-stranded DNA virus family is a sister-group to the baculoviruses, whose members were thought to lack occlusion bodies. The 70-year-old sample contains a well-ordered lattice formed by a predominantly α-helical building block that assembles into a dense, highly interconnected protein crystal. The lattice is maintained by extensive hydrophobic and electrostatic interactions, disulfide bonds, and domain switching. The resulting lattice is resistant to most environmental stresses. Comparison of this structure to baculovirus or cypovirus polyhedra shows a distinct protein structure, crystal space group, and unit cell dimensions, however, all polyhedra utilise common principles of occlusion body assembly.
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Affiliation(s)
- Jeremy R Keown
- Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK.
| | - Adam D Crawshaw
- Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, UK
| | - Jose Trincao
- Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, UK
| | - Loïc Carrique
- Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Richard J Gildea
- Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, UK
| | - Sam Horrell
- Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, UK
| | - Anna J Warren
- Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, UK
| | - Danny Axford
- Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, UK
| | - Robin Owen
- Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, UK
| | - Gwyndaf Evans
- Diamond Light Source Ltd, Harwell Science & Innovation Campus, Didcot, UK
- Rosalind Franklin Institute, Harwell Campus, Didcot, UK
| | - Annie Bézier
- Institut de Recherche sur la Biologie de l'Insecte (IRBI), UMR7261 CNRS-Université de Tours, Tours, France
| | - Peter Metcalf
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - Jonathan M Grimes
- Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK.
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2
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Mikolajek H, Sanchez-Weatherby J, Sandy J, Gildea RJ, Campeotto I, Cheruvara H, Clarke JD, Foster T, Fujii S, Paulsen IT, Shah BS, Hough MA. Protein-to-structure pipeline for ambient-temperature in situ crystallography at VMXi. IUCrJ 2023:S2052252523003810. [PMID: 37199504 DOI: 10.1107/s2052252523003810] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The utility of X-ray crystal structures determined under ambient-temperature conditions is becoming increasingly recognized. Such experiments can allow protein dynamics to be characterized and are particularly well suited to challenging protein targets that may form fragile crystals that are difficult to cryo-cool. Room-temperature data collection also enables time-resolved experiments. In contrast to the high-throughput highly automated pipelines for determination of structures at cryogenic temperatures widely available at synchrotron beamlines, room-temperature methodology is less mature. Here, the current status of the fully automated ambient-temperature beamline VMXi at Diamond Light Source is described, and a highly efficient pipeline from protein sample to final multi-crystal data analysis and structure determination is shown. The capability of the pipeline is illustrated using a range of user case studies representing different challenges, and from high and lower symmetry space groups and varied crystal sizes. It is also demonstrated that very rapid structure determination from crystals in situ within crystallization plates is now routine with minimal user intervention.
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Affiliation(s)
- Halina Mikolajek
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Juan Sanchez-Weatherby
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - James Sandy
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Richard J Gildea
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Ivan Campeotto
- Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Campus, Nottingham NG11 8NS, United Kingdom
| | - Harish Cheruvara
- Membrane Protein Laboratory, Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - John D Clarke
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Toshana Foster
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Nottingham LE12 5RD, United Kingdom
| | - Sotaro Fujii
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Ian T Paulsen
- School of Natural Sciences, Macquarie University, Sydney, Australia
| | - Bhumika S Shah
- School of Natural Sciences, Macquarie University, Sydney, Australia
| | - Michael A Hough
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
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3
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Agirre J, Atanasova M, Bagdonas H, Ballard CB, Baslé A, Beilsten-Edmands J, Borges RJ, Brown DG, Burgos-Mármol JJ, Berrisford JM, Bond PS, Caballero I, Catapano L, Chojnowski G, Cook AG, Cowtan KD, Croll TI, Debreczeni JÉ, Devenish NE, Dodson EJ, Drevon TR, Emsley P, Evans G, Evans PR, Fando M, Foadi J, Fuentes-Montero L, Garman EF, Gerstel M, Gildea RJ, Hatti K, Hekkelman ML, Heuser P, Hoh SW, Hough MA, Jenkins HT, Jiménez E, Joosten RP, Keegan RM, Keep N, Krissinel EB, Kolenko P, Kovalevskiy O, Lamzin VS, Lawson DM, Lebedev AA, Leslie AGW, Lohkamp B, Long F, Malý M, McCoy AJ, McNicholas SJ, Medina A, Millán C, Murray JW, Murshudov GN, Nicholls RA, Noble MEM, Oeffner R, Pannu NS, Parkhurst JM, Pearce N, Pereira J, Perrakis A, Powell HR, Read RJ, Rigden DJ, Rochira W, Sammito M, Sánchez Rodríguez F, Sheldrick GM, Shelley KL, Simkovic F, Simpkin AJ, Skubak P, Sobolev E, Steiner RA, Stevenson K, Tews I, Thomas JMH, Thorn A, Valls JT, Uski V, Usón I, Vagin A, Velankar S, Vollmar M, Walden H, Waterman D, Wilson KS, Winn MD, Winter G, Wojdyr M, Yamashita K. The CCP4 suite: integrative software for macromolecular crystallography. Acta Crystallogr D Struct Biol 2023; 79:449-461. [PMID: 37259835 PMCID: PMC10233625 DOI: 10.1107/s2059798323003595] [Citation(s) in RCA: 84] [Impact Index Per Article: 84.0] [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: 03/29/2023] [Accepted: 04/19/2023] [Indexed: 06/02/2023] Open
Abstract
The Collaborative Computational Project No. 4 (CCP4) is a UK-led international collective with a mission to develop, test, distribute and promote software for macromolecular crystallography. The CCP4 suite is a multiplatform collection of programs brought together by familiar execution routines, a set of common libraries and graphical interfaces. The CCP4 suite has experienced several considerable changes since its last reference article, involving new infrastructure, original programs and graphical interfaces. This article, which is intended as a general literature citation for the use of the CCP4 software suite in structure determination, will guide the reader through such transformations, offering a general overview of the new features and outlining future developments. As such, it aims to highlight the individual programs that comprise the suite and to provide the latest references to them for perusal by crystallographers around the world.
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Affiliation(s)
- Jon Agirre
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Mihaela Atanasova
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Haroldas Bagdonas
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Charles B. Ballard
- STFC, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
| | - Arnaud Baslé
- Biosciences Institute, Newcastle University, Newcastle upon Tyne NE2 4HH, United Kingdom
| | - James Beilsten-Edmands
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Rafael J. Borges
- The Center of Medicinal Chemistry (CQMED), Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Av. Dr. André Tosello 550, 13083-886 Campinas, Brazil
| | - David G. Brown
- Laboratoires Servier SAS Institut de Recherches, Croissy-sur-Seine, France
| | - J. Javier Burgos-Mármol
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 7ZB, United Kingdom
| | - John M. Berrisford
- Protein Data Bank in Europe, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL–EBI), Wellcome Genome Campus, Hinxton, Cambridge CB10 1SD, United Kingdom
| | - Paul S. Bond
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Iracema Caballero
- Crystallographic Methods, Institute of Molecular Biology of Barcelona (IBMB–CSIC), Barcelona Science Park, Helix Building, Baldiri Reixac 15, 08028 Barcelona, Spain
| | - Lucrezia Catapano
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, United Kingdom
- Randall Centre for Cell and Molecular Biophysics, Faculty of Life Sciences and Medicine, King’s College London, London SE1 9RT, United Kingdom
| | - Grzegorz Chojnowski
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607 Hamburg, Germany
| | - Atlanta G. Cook
- The Wellcome Centre for Cell Biology, University of Edinburgh, Michael Swann Building, Max Born Crescent, The King’s Buildings, Edinburgh EH9 3BF, United Kingdom
| | - Kevin D. Cowtan
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Tristan I. Croll
- Department of Haematology, Cambridge Institute for Medical Research, University of Cambridge, Hills Road, Cambridge CB2 0XY, United Kingdom
- Altos Labs, Portway Building, Granta Park, Great Abington, Cambridge CB21 6GP, United Kingdom
| | - Judit É. Debreczeni
- Discovery Sciences, R&D BioPharmaceuticals, AstraZeneca, Darwin Building, Cambridge Science Park, Milton Road, Cambridge CB4 0WG, United Kingdom
| | - Nicholas E. Devenish
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Eleanor J. Dodson
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Tarik R. Drevon
- STFC, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
| | - Paul Emsley
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, United Kingdom
| | - Gwyndaf Evans
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Didcot OX11 0QS, United Kingdom
| | - Phil R. Evans
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, United Kingdom
| | - Maria Fando
- STFC, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
| | - James Foadi
- Department of Mathematical Sciences, University of Bath, Bath, United Kingdom
| | - Luis Fuentes-Montero
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Elspeth F. Garman
- Department of Biochemistry, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 3QU, United Kingdom
| | - Markus Gerstel
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Richard J. Gildea
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Kaushik Hatti
- Department of Haematology, Cambridge Institute for Medical Research, University of Cambridge, Hills Road, Cambridge CB2 0XY, United Kingdom
| | - Maarten L. Hekkelman
- Oncode Institute and Department of Biochemistry, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Philipp Heuser
- European Molecular Biology Laboratory, c/o DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Soon Wen Hoh
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Michael A. Hough
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, United Kingdom
| | - Huw T. Jenkins
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Elisabet Jiménez
- Crystallographic Methods, Institute of Molecular Biology of Barcelona (IBMB–CSIC), Barcelona Science Park, Helix Building, Baldiri Reixac 15, 08028 Barcelona, Spain
| | - Robbie P. Joosten
- Oncode Institute and Department of Biochemistry, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Ronan M. Keegan
- STFC, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 7ZB, United Kingdom
| | - Nicholas Keep
- Department of Biological Sciences, Institute of Structural and Molecular Biology, Birkbeck College, London WC1E 7HX, United Kingdom
| | - Eugene B. Krissinel
- STFC, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
| | - Petr Kolenko
- Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 115 19 Prague 1, Czech Republic
- Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Průmyslová 55, 252 50 Vestec, Czech Republic
| | - Oleg Kovalevskiy
- STFC, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
| | - Victor S. Lamzin
- European Molecular Biology Laboratory, Hamburg Unit, Notkestrasse 85, 22607 Hamburg, Germany
| | - David M. Lawson
- Department of Biochemistry and Metabolism, John Innes Centre, Norwich NR4 7UH, United Kingdom
| | - Andrey A. Lebedev
- STFC, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
| | - Andrew G. W. Leslie
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, United Kingdom
| | - Bernhard Lohkamp
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Fei Long
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, United Kingdom
| | - Martin Malý
- Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 115 19 Prague 1, Czech Republic
- Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Průmyslová 55, 252 50 Vestec, Czech Republic
- Biological Sciences, Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Airlie J. McCoy
- Department of Haematology, Cambridge Institute for Medical Research, University of Cambridge, Hills Road, Cambridge CB2 0XY, United Kingdom
| | - Stuart J. McNicholas
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Ana Medina
- Crystallographic Methods, Institute of Molecular Biology of Barcelona (IBMB–CSIC), Barcelona Science Park, Helix Building, Baldiri Reixac 15, 08028 Barcelona, Spain
| | - Claudia Millán
- Department of Haematology, Cambridge Institute for Medical Research, University of Cambridge, Hills Road, Cambridge CB2 0XY, United Kingdom
| | - James W. Murray
- Department of Life Sciences, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Garib N. Murshudov
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, United Kingdom
| | - Robert A. Nicholls
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, United Kingdom
| | - Martin E. M. Noble
- Translational and Clinical Research Institute, Newcastle University, Paul O’Gorman Building, Medical School, Framlington Place, Newcastle upon Tyne NE2 4HH, United Kingdom
| | - Robert Oeffner
- Department of Haematology, Cambridge Institute for Medical Research, University of Cambridge, Hills Road, Cambridge CB2 0XY, United Kingdom
| | - Navraj S. Pannu
- Department of Infectious Diseases, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
| | - James M. Parkhurst
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
- Rosalind Franklin Institute, Harwell Science and Innovation Campus, Didcot OX11 0QS, United Kingdom
| | - Nicholas Pearce
- Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
| | - Joana Pereira
- Biozentrum and SIB Swiss Institute of Bioinformatics, University of Basel, 4056 Basel, Switzerland
| | - Anastassis Perrakis
- Oncode Institute and Department of Biochemistry, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Harold R. Powell
- Department of Life Sciences, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Randy J. Read
- Department of Haematology, Cambridge Institute for Medical Research, University of Cambridge, Hills Road, Cambridge CB2 0XY, United Kingdom
| | - Daniel J. Rigden
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 7ZB, United Kingdom
| | - William Rochira
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Massimo Sammito
- Department of Haematology, Cambridge Institute for Medical Research, University of Cambridge, Hills Road, Cambridge CB2 0XY, United Kingdom
- Discovery Centre, Biologics Engineering, AstraZeneca, Biomedical Campus, 1 Francis Crick Avenue, Trumpington, Cambridge CB2 0AA, United Kingdom
| | - Filomeno Sánchez Rodríguez
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 7ZB, United Kingdom
| | - George M. Sheldrick
- Department of Structural Chemistry, Georg-August-Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Kathryn L. Shelley
- Institute for Protein Design, University of Washington, Seattle, WA 98195, USA
| | - Felix Simkovic
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 7ZB, United Kingdom
| | - Adam J. Simpkin
- Laboratoires Servier SAS Institut de Recherches, Croissy-sur-Seine, France
| | - Pavol Skubak
- Department of Infectious Diseases, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
| | - Egor Sobolev
- European Molecular Biology Laboratory, c/o DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Roberto A. Steiner
- Randall Centre for Cell and Molecular Biophysics, Faculty of Life Sciences and Medicine, King’s College London, London SE1 9RT, United Kingdom
- Department of Biomedical Sciences, University of Padova, Italy
| | - Kyle Stevenson
- STFC, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
| | - Ivo Tews
- Biological Sciences, Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Jens M. H. Thomas
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 7ZB, United Kingdom
| | - Andrea Thorn
- Institute for Nanostructure and Solid State Physics, Universität Hamburg, 22761 Hamburg, Germany
| | - Josep Triviño Valls
- Crystallographic Methods, Institute of Molecular Biology of Barcelona (IBMB–CSIC), Barcelona Science Park, Helix Building, Baldiri Reixac 15, 08028 Barcelona, Spain
| | - Ville Uski
- STFC, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
| | - Isabel Usón
- Crystallographic Methods, Institute of Molecular Biology of Barcelona (IBMB–CSIC), Barcelona Science Park, Helix Building, Baldiri Reixac 15, 08028 Barcelona, Spain
- ICREA, Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, 08003 Barcelona, Spain
| | - Alexei Vagin
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Sameer Velankar
- Protein Data Bank in Europe, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL–EBI), Wellcome Genome Campus, Hinxton, Cambridge CB10 1SD, United Kingdom
| | - Melanie Vollmar
- Protein Data Bank in Europe, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL–EBI), Wellcome Genome Campus, Hinxton, Cambridge CB10 1SD, United Kingdom
| | - Helen Walden
- School of Molecular Biosciences, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - David Waterman
- STFC, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, United Kingdom
| | - Keith S. Wilson
- York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Martyn D. Winn
- Scientific Computing Department, Science and Technology Facilities Council, Didcot OX11 0FA, United Kingdom
| | - Graeme Winter
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - Marcin Wojdyr
- Global Phasing Limited (United Kingdom), Sheraton House, Castle Park, Cambridge CB3 0AX, United Kingdom
| | - Keitaro Yamashita
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, United Kingdom
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4
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Gildea RJ, Beilsten-Edmands J, Axford D, Horrell S, Aller P, Sandy J, Sanchez-Weatherby J, Owen CD, Lukacik P, Strain-Damerell C, Owen RL, Walsh MA, Winter G. xia2. multiplex: a multi-crystal data-analysis pipeline. Acta Crystallogr D Struct Biol 2022; 78:752-769. [PMID: 35647922 PMCID: PMC9159281 DOI: 10.1107/s2059798322004399] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/25/2022] [Indexed: 11/11/2022] Open
Abstract
A new program, xia2.multiplex, has been developed to facilitate symmetry analysis, scaling and merging of multi-crystal data sets. In macromolecular crystallography, radiation damage limits the amount of data that can be collected from a single crystal. It is often necessary to merge data sets from multiple crystals; for example, small-wedge data collections from micro-crystals, in situ room-temperature data collections and data collection from membrane proteins in lipidic mesophases. Whilst the indexing and integration of individual data sets may be relatively straightforward with existing software, merging multiple data sets from small wedges presents new challenges. The identification of a consensus symmetry can be problematic, particularly in the presence of a potential indexing ambiguity. Furthermore, the presence of non-isomorphous or poor-quality data sets may reduce the overall quality of the final merged data set. To facilitate and help to optimize the scaling and merging of multiple data sets, a new program, xia2.multiplex, has been developed which takes data sets individually integrated with DIALS and performs symmetry analysis, scaling and merging of multi-crystal data sets. xia2.multiplex also performs analysis of various pathologies that typically affect multi-crystal data sets, including non-isomorphism, radiation damage and preferential orientation. After the description of a number of use cases, the benefit of xia2.multiplex is demonstrated within a wider autoprocessing framework in facilitating a multi-crystal experiment collected as part of in situ room-temperature fragment-screening experiments on the SARS-CoV-2 main protease.
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5
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Winter G, Beilsten-Edmands J, Devenish N, Gerstel M, Gildea RJ, McDonagh D, Pascal E, Waterman DG, Williams BH, Evans G. DIALS as a toolkit. Protein Sci 2021; 31:232-250. [PMID: 34747533 PMCID: PMC8740827 DOI: 10.1002/pro.4224] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [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: 10/18/2021] [Revised: 11/04/2021] [Accepted: 11/05/2021] [Indexed: 12/04/2022]
Abstract
The DIALS software for the processing of X‐ray diffraction data is presented, with an emphasis on how the suite may be used as a toolkit for data processing. The description starts with an overview of the history and intent of the toolkit, usage as an automated system, command‐line use, and ultimately how new tools can be written using the API to perform bespoke analysis. Consideration is also made to the application of DIALS to techniques outside of macromolecular X‐ray crystallography.
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Affiliation(s)
- Graeme Winter
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot, UK
| | | | - Nicholas Devenish
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot, UK
| | - Markus Gerstel
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot, UK
| | - Richard J Gildea
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot, UK
| | | | - Elena Pascal
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot, UK
| | - David G Waterman
- STFC Rutherford Appleton Laboratory, Didcot, UK.,CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot, UK
| | | | - Gwyndaf Evans
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot, UK.,Rosalind Franklin Institute, Harwell Science and Innovation Campus, Didcot, UK
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6
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Winter G, Gildea RJ, Paterson NG, Beale J, Gerstel M, Axford D, Vollmar M, McAuley KE, Owen RL, Flaig R, Ashton AW, Hall DR. How best to use photons. Acta Crystallogr D Struct Biol 2019; 75:242-261. [PMID: 30950396 PMCID: PMC6450062 DOI: 10.1107/s2059798319003528] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 03/13/2019] [Indexed: 11/10/2022] Open
Abstract
Strategies for collecting X-ray diffraction data have evolved alongside beamline hardware and detector developments. The traditional approaches for diffraction data collection have emphasised collecting data from noisy integrating detectors (i.e. film, image plates and CCD detectors). With fast pixel array detectors on stable beamlines, the limiting factor becomes the sample lifetime, and the question becomes one of how to expend the photons that your sample can diffract, i.e. as a smaller number of stronger measurements or a larger number of weaker data. This parameter space is explored via experiment and synthetic data treatment and advice is derived on how best to use the equipment on a modern beamline. Suggestions are also made on how to acquire data in a conservative manner if very little is known about the sample lifetime.
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Affiliation(s)
- Graeme Winter
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Richard J. Gildea
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Neil G. Paterson
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - John Beale
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Markus Gerstel
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Danny Axford
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Melanie Vollmar
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Katherine E. McAuley
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Robin L. Owen
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Ralf Flaig
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Alun W. Ashton
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - David R. Hall
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
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7
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Brewster AS, Waterman DG, Parkhurst JM, Gildea RJ, Young ID, O’Riordan LJ, Yano J, Winter G, Evans G, Sauter NK. Improving signal strength in serial crystallography with DIALS geometry refinement. Acta Crystallogr D Struct Biol 2018; 74:877-894. [PMID: 30198898 PMCID: PMC6130462 DOI: 10.1107/s2059798318009191] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 06/25/2018] [Indexed: 01/31/2023] Open
Abstract
The DIALS diffraction-modeling software package has been applied to serial crystallography data. Diffraction modeling is an exercise in determining the experimental parameters, such as incident beam wavelength, crystal unit cell and orientation, and detector geometry, that are most consistent with the observed positions of Bragg spots. These parameters can be refined by nonlinear least-squares fitting. In previous work, it has been challenging to refine both the positions of the sensors (metrology) on multipanel imaging detectors such as the CSPAD and the orientations of all of the crystals studied. Since the optimal models for metrology and crystal orientation are interdependent, alternate cycles of panel refinement and crystal refinement have been required. To simplify the process, a sparse linear algebra technique for solving the normal equations was implemented, allowing the detector panels to be refined simultaneously against the diffraction from thousands of crystals with excellent computational performance. Separately, it is shown how to refine the metrology of a second CSPAD detector, positioned at a distance of 2.5 m from the crystal, used for recording low-angle reflections. With the ability to jointly refine the detector position against the ensemble of all crystals used for structure determination, it is shown that ensemble refinement greatly reduces the apparent nonisomorphism that is often observed in the unit-cell distributions from still-shot serial crystallography. In addition, it is shown that batching the images by timestamp and re-refining the detector position can realistically model small, time-dependent variations in detector position relative to the sample, and thereby improve the integrated structure-factor intensity signal and heavy-atom anomalous peak heights.
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Affiliation(s)
| | - David G. Waterman
- STFC Rutherford Appleton Laboratory, Didcot OX11 0QX, England
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, England
| | - James M. Parkhurst
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, England
| | - Richard J. Gildea
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Iris D. Young
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | | | - Junko Yano
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Graeme Winter
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Gwyndaf Evans
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
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8
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Gildea RJ, Winter G. Determination of Patterson group symmetry from sparse multi-crystal data sets in the presence of an indexing ambiguity. Acta Crystallogr D Struct Biol 2018; 74:405-410. [PMID: 29717711 PMCID: PMC5930348 DOI: 10.1107/s2059798318002978] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 02/20/2018] [Indexed: 11/10/2022]
Abstract
Combining X-ray diffraction data from multiple samples requires determination of the symmetry and resolution of any indexing ambiguity. For the partial data sets typical of in situ room-temperature experiments, determination of the correct symmetry is often not straightforward. The potential for indexing ambiguity in polar space groups is also an issue, although methods to resolve this are available if the true symmetry is known. Here, a method is presented to simultaneously resolve the determination of the Patterson symmetry and the indexing ambiguity for partial data sets.
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Affiliation(s)
- Richard J Gildea
- Diamond Light Source Ltd, Diamond House, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Graeme Winter
- Diamond Light Source Ltd, Diamond House, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
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9
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Winter G, Waterman DG, Parkhurst JM, Brewster AS, Gildea RJ, Gerstel M, Fuentes-Montero L, Vollmar M, Michels-Clark T, Young ID, Sauter NK, Evans G. DIALS: implementation and evaluation of a new integration package. Acta Crystallogr D Struct Biol 2018; 74:85-97. [PMID: 29533234 PMCID: PMC5947772 DOI: 10.1107/s2059798317017235] [Citation(s) in RCA: 642] [Impact Index Per Article: 107.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 11/30/2017] [Indexed: 01/07/2023] Open
Abstract
The DIALS project is a collaboration between Diamond Light Source, Lawrence Berkeley National Laboratory and CCP4 to develop a new software suite for the analysis of crystallographic X-ray diffraction data, initially encompassing spot finding, indexing, refinement and integration. The design, core algorithms and structure of the software are introduced, alongside results from the analysis of data from biological and chemical crystallography experiments.
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Affiliation(s)
- Graeme Winter
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - David G. Waterman
- STFC Rutherford Appleton Laboratory, Didcot OX11 0FA, England
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, England
| | - James M. Parkhurst
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
- Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, England
| | - Aaron S. Brewster
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
| | - Richard J. Gildea
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Markus Gerstel
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Luis Fuentes-Montero
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Melanie Vollmar
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Tara Michels-Clark
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
| | - Iris D. Young
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
| | - Nicholas K. Sauter
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
| | - Gwyndaf Evans
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
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10
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Burton CG, Axford D, Edwards AMJ, Gildea RJ, Morris RH, Newton MI, Orville AM, Prince M, Topham PD, Docker PT. An acoustic on-chip goniometer for room temperature macromolecular crystallography. Lab Chip 2017; 17:4225-4230. [PMID: 29124258 DOI: 10.1039/c7lc00812k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This paper describes the design, development and successful use of an on-chip goniometer for room-temperature macromolecular crystallography via acoustically induced rotations. We present for the first time a low cost, rate-tunable, acoustic actuator for gradual in-fluid sample reorientation about varying axes and its utilisation for protein structure determination on a synchrotron beamline. The device enables the efficient collection of diffraction data via a rotation method from a sample within a surface confined droplet. This method facilitates efficient macromolecular structural data acquisition in fluid environments for dynamical studies.
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Affiliation(s)
- C G Burton
- Aston Institute of Material Research, Aston University, Birmingham B4 7ET, UK
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11
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Parkhurst JM, Thorn A, Vollmar M, Winter G, Waterman DG, Fuentes-Montero L, Gildea RJ, Murshudov GN, Evans G. Background modelling of diffraction data in the presence of ice rings. IUCrJ 2017; 4:626-638. [PMID: 28989718 PMCID: PMC5619854 DOI: 10.1107/s2052252517010259] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 07/10/2017] [Indexed: 05/22/2023]
Abstract
An algorithm for modelling the background for each Bragg reflection in a series of X-ray diffraction images containing Debye-Scherrer diffraction from ice in the sample is presented. The method involves the use of a global background model which is generated from the complete X-ray diffraction data set. Fitting of this model to the background pixels is then performed for each reflection independently. The algorithm uses a static background model that does not vary over the course of the scan. The greatest improvement can be expected for data where ice rings are present throughout the data set and the local background shape at the size of a spot on the detector does not exhibit large time-dependent variation. However, the algorithm has been applied to data sets whose background showed large pixel variations (variance/mean > 2) and has been shown to improve the results of processing for these data sets. It is shown that the use of a simple flat-background model as in traditional integration programs causes systematic bias in the background determination at ice-ring resolutions, resulting in an overestimation of reflection intensities at the peaks of the ice rings and an underestimation of reflection intensities either side of the ice ring. The new global background-model algorithm presented here corrects for this bias, resulting in a noticeable improvement in R factors following refinement.
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Affiliation(s)
- James M. Parkhurst
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
- Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, England
| | - Andrea Thorn
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
- Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, England
- Hamburg Centre for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Melanie Vollmar
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Graeme Winter
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - David G. Waterman
- STFC Rutherford Appleton Laboratory, Didcot OX11 0FA, England
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, England
| | - Luis Fuentes-Montero
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Richard J. Gildea
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Garib N. Murshudov
- Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, England
- Correspondence e-mail: ,
| | - Gwyndaf Evans
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
- Correspondence e-mail: ,
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12
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Parkhurst JM, Winter G, Waterman DG, Fuentes-Montero L, Gildea RJ, Murshudov GN, Evans G. Robust background modelling in DIALS. J Appl Crystallogr 2016; 49:1912-1921. [PMID: 27980508 PMCID: PMC5139990 DOI: 10.1107/s1600576716013595] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [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: 06/01/2016] [Accepted: 08/24/2016] [Indexed: 11/11/2022] Open
Abstract
A method for estimating the background under each reflection during integration that is robust in the presence of pixel outliers is presented. The method uses a generalized linear model approach that is more appropriate for use with Poisson distributed data than traditional approaches to pixel outlier handling in integration programs. The algorithm is most applicable to data with a very low background level where assumptions of a normal distribution are no longer valid as an approximation to the Poisson distribution. It is shown that traditional methods can result in the systematic underestimation of background values. This then results in the reflection intensities being overestimated and gives rise to a change in the overall distribution of reflection intensities in a dataset such that too few weak reflections appear to be recorded. Statistical tests performed during data reduction may mistakenly attribute this to merohedral twinning in the crystal. Application of the robust generalized linear model algorithm is shown to correct for this bias.
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Affiliation(s)
- James M Parkhurst
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK; Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
| | - Graeme Winter
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - David G Waterman
- STFC Rutherford Appleton Laboratory, Didcot OX11 0FA, UK; CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, UK
| | - Luis Fuentes-Montero
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - Richard J Gildea
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - Garib N Murshudov
- Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
| | - Gwyndaf Evans
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
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13
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Waterman DG, Winter G, Gildea RJ, Parkhurst JM, Brewster AS, Sauter NK, Evans G. Diffraction-geometry refinement in the DIALS framework. Acta Crystallogr D Struct Biol 2016; 72:558-75. [PMID: 27050135 PMCID: PMC4822564 DOI: 10.1107/s2059798316002187] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 02/04/2016] [Indexed: 11/10/2022]
Abstract
A comprehensive description of the methods used within the DIALS framework for diffraction-geometry refinement using predicted reflection centroids is given. Examples of the advanced features of the software are provided. Rapid data collection and modern computing resources provide the opportunity to revisit the task of optimizing the model of diffraction geometry prior to integration. A comprehensive description is given of new software that builds upon established methods by performing a single global refinement procedure, utilizing a smoothly varying model of the crystal lattice where appropriate. This global refinement technique extends to multiple data sets, providing useful constraints to handle the problem of correlated parameters, particularly for small wedges of data. Examples of advanced uses of the software are given and the design is explained in detail, with particular emphasis on the flexibility and extensibility it entails.
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Affiliation(s)
| | - Graeme Winter
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Richard J Gildea
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - James M Parkhurst
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | | | | | - Gwyndaf Evans
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
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14
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Waterman DG, Winter G, Parkhurst JM, Fuentes-Montero L, Gildea RJ, Brewster AS, Sauter NK, Evans G. DIALS – a new toolbox for diffraction image integration. Acta Crystallogr A Found Adv 2015. [DOI: 10.1107/s2053273315092542] [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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15
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Gildea RJ, Winter G, Evans G. Analysis of multi-crystal datasets with xia2. Acta Crystallogr A Found Adv 2015. [DOI: 10.1107/s2053273315099684] [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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Hattne J, Echols N, Tran R, Kern J, Gildea RJ, Brewster AS, Alonso-Mori R, Glöckner C, Hellmich J, Laksmono H, Sierra RG, Lassalle-Kaiser B, Lampe A, Han G, Gul S, DiFiore D, Milathianaki D, Fry AR, Miahnahri A, White WE, Schafer DW, Seibert MM, Koglin JE, Sokaras D, Weng TC, Sellberg J, Latimer MJ, Glatzel P, Zwart PH, Grosse-Kunstleve RW, Bogan MJ, Messerschmidt M, Williams GJ, Boutet S, Messinger J, Zouni A, Yano J, Bergmann U, Yachandra VK, Adams PD, Sauter NK. Erratum: Corrigendum: Accurate macromolecular structures using minimal measurements from X-ray free-electron lasers. Nat Methods 2015. [DOI: 10.1038/nmeth0715-692d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Ginn HM, Messerschmidt M, Ji X, Zhang H, Axford D, Gildea RJ, Winter G, Brewster AS, Hattne J, Wagner A, Grimes JM, Evans G, Sauter NK, Sutton G, Stuart DI. Structure of CPV17 polyhedrin determined by the improved analysis of serial femtosecond crystallographic data. Nat Commun 2015; 6:6435. [PMID: 25751308 PMCID: PMC4403592 DOI: 10.1038/ncomms7435] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [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: 11/05/2014] [Accepted: 01/28/2015] [Indexed: 11/09/2022] Open
Abstract
The X-ray free-electron laser (XFEL) allows the analysis of small weakly diffracting protein crystals, but has required very many crystals to obtain good data. Here we use an XFEL to determine the room temperature atomic structure for the smallest cytoplasmic polyhedrosis virus polyhedra yet characterized, which we failed to solve at a synchrotron. These protein microcrystals, roughly a micron across, accrue within infected cells. We use a new physical model for XFEL diffraction, which better estimates the experimental signal, delivering a high-resolution XFEL structure (1.75 Å), using fewer crystals than previously required for this resolution. The crystal lattice and protein core are conserved compared with a polyhedrin with less than 10% sequence identity. We explain how the conserved biological phenotype, the crystal lattice, is maintained in the face of extreme environmental challenge and massive evolutionary divergence. Our improved methods should open up more challenging biological samples to XFEL analysis. Serial femtosecond crystallography and the use of X-ray free-electron lasers (XFEL) promise to revolutionize structural biology. Here, the authors describe refinements that reduce the redundancy required to obtain quality XFEL data and report a 1.75-Å structure—not obtainable by synchrotron radiation—using less than 6,000 crystals.
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Affiliation(s)
- Helen M Ginn
- Division of Structural Biology, The Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, Oxfordshire OX3 7BN, UK
| | - Marc Messerschmidt
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Xiaoyun Ji
- 1] Division of Structural Biology, The Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, Oxfordshire OX3 7BN, UK [2] Molecular Biophysics and Biochemistry, Yale School of Medicine, 333 Cedar Street, New Haven, Connecticut 06510, USA
| | - Hanwen Zhang
- Division of Structural Biology, The Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, Oxfordshire OX3 7BN, UK
| | - Danny Axford
- Diamond House, Diamond Light Source, Harwell Science &Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Richard J Gildea
- Diamond House, Diamond Light Source, Harwell Science &Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Graeme Winter
- Diamond House, Diamond Light Source, Harwell Science &Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Aaron S Brewster
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Johan Hattne
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Armin Wagner
- Diamond House, Diamond Light Source, Harwell Science &Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Jonathan M Grimes
- 1] Division of Structural Biology, The Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, Oxfordshire OX3 7BN, UK [2] Diamond House, Diamond Light Source, Harwell Science &Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Gwyndaf Evans
- Diamond House, Diamond Light Source, Harwell Science &Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Nicholas K Sauter
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Geoff Sutton
- Division of Structural Biology, The Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, Oxfordshire OX3 7BN, UK
| | - David I Stuart
- 1] Division of Structural Biology, The Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, Oxfordshire OX3 7BN, UK [2] Diamond House, Diamond Light Source, Harwell Science &Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
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18
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Bourhis LJ, Dolomanov OV, Gildea RJ, Howard JAK, Puschmann H. The anatomy of a comprehensive constrained, restrained refinement program for the modern computing environment - Olex2 dissected. Acta Crystallogr A Found Adv 2015; 71:59-75. [PMID: 25537389 PMCID: PMC4283469 DOI: 10.1107/s2053273314022207] [Citation(s) in RCA: 883] [Impact Index Per Article: 98.1] [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: 06/19/2014] [Accepted: 10/08/2014] [Indexed: 11/25/2022] Open
Abstract
This paper describes the mathematical basis for olex2.refine, the new refinement engine which is integrated within the Olex2 program. Precise and clear equations are provided for every computation performed by this engine, including structure factors and their derivatives, constraints, restraints and twinning; a general overview is also given of the different components of the engine and their relation to each other. A framework for adding multiple general constraints with dependencies on common physical parameters is described. Several new restraints on atomic displacement parameters are also presented.
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Affiliation(s)
- Luc J. Bourhis
- Bruker AXS–SAS, 4 Allée Lorentz, 77447 Marne-la-Vallée cedex 2, France
| | - Oleg V. Dolomanov
- OlexSys Ltd, Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, England
| | - Richard J. Gildea
- Diamond Light Source Ltd, Diamond House, Harwell Oxford, Didcot, Oxfordshire, OX11 0DE, England
| | - Judith A. K. Howard
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, England
| | - Horst Puschmann
- OlexSys Ltd, Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, England
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19
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Gildea RJ, Waterman DG, Parkhurst JM, Axford D, Sutton G, Stuart DI, Sauter NK, Evans G, Winter G. New methods for indexing multi-lattice diffraction data. Acta Crystallogr D Biol Crystallogr 2014; 70:2652-66. [PMID: 25286849 PMCID: PMC4188007 DOI: 10.1107/s1399004714017039] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 07/23/2014] [Indexed: 11/10/2022]
Abstract
A new indexing method is presented which is capable of indexing multiple crystal lattices from narrow wedges of diffraction data. The method takes advantage of a simplification of Fourier transform-based methods that is applicable when the unit-cell dimensions are known a priori. The efficacy of this method is demonstrated with both semi-synthetic multi-lattice data and real multi-lattice data recorded from crystals of ∼1 µm in size, where it is shown that up to six lattices can be successfully indexed and subsequently integrated from a 1° wedge of data. Analysis is presented which shows that improvements in data-quality indicators can be obtained through accurate identification and rejection of overlapping reflections prior to scaling.
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Affiliation(s)
- Richard J. Gildea
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - David G. Waterman
- STFC Rutherford Appleton Laboratory, Didcot OX11 0QX, England
- CCP4, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, England
| | - James M. Parkhurst
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Danny Axford
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Geoff Sutton
- Division of Structural Biology, The Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, England
| | - David I. Stuart
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
- Division of Structural Biology, The Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, England
| | - Nicholas K. Sauter
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Gwyndaf Evans
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Graeme Winter
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
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20
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Kern J, Tran R, Alonso-Mori R, Koroidov S, Echols N, Hattne J, Ibrahim M, Gul S, Laksmono H, Sierra RG, Gildea RJ, Han G, Hellmich J, Lassalle-Kaiser B, Chatterjee R, Brewster AS, Stan CA, Glöckner C, Lampe A, DiFiore D, Milathianaki D, Fry AR, Seibert MM, Koglin JE, Gallo E, Uhlig J, Sokaras D, Weng TC, Zwart PH, Skinner DE, Bogan MJ, Messerschmidt M, Glatzel P, Williams GJ, Boutet S, Adams PD, Zouni A, Messinger J, Sauter NK, Bergmann U, Yano J, Yachandra VK. Taking snapshots of photosynthetic water oxidation using femtosecond X-ray diffraction and spectroscopy. Nat Commun 2014; 5:4371. [PMID: 25006873 PMCID: PMC4151126 DOI: 10.1038/ncomms5371] [Citation(s) in RCA: 188] [Impact Index Per Article: 18.8] [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: 02/20/2014] [Accepted: 06/10/2014] [Indexed: 01/07/2023] Open
Abstract
The dioxygen we breathe is formed by light-induced oxidation of water in photosystem II. O2 formation takes place at a catalytic manganese cluster within milliseconds after the photosystem II reaction centre is excited by three single-turnover flashes. Here we present combined X-ray emission spectra and diffraction data of 2-flash (2F) and 3-flash (3F) photosystem II samples, and of a transient 3F' state (250 μs after the third flash), collected under functional conditions using an X-ray free electron laser. The spectra show that the initial O-O bond formation, coupled to Mn reduction, does not yet occur within 250 μs after the third flash. Diffraction data of all states studied exhibit an anomalous scattering signal from Mn but show no significant structural changes at the present resolution of 4.5 Å. This study represents the initial frames in a molecular movie of the structural changes during the catalytic reaction in photosystem II.
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Affiliation(s)
- Jan Kern
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA,LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Rosalie Tran
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | | | - Sergey Koroidov
- Institutionen för Kemi, Kemiskt Biologiskt Centrum, Umeå Universitet, Umeå, Sweden
| | - Nathaniel Echols
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Johan Hattne
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Mohamed Ibrahim
- Institut für Biologie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany,Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, D-10623 Berlin, Germany
| | - Sheraz Gul
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Hartawan Laksmono
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Raymond G. Sierra
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Richard J. Gildea
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Guangye Han
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Julia Hellmich
- Institut für Biologie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany,Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, D-10623 Berlin, Germany
| | | | - Ruchira Chatterjee
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Aaron S. Brewster
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Claudiu A. Stan
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Carina Glöckner
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, D-10623 Berlin, Germany
| | - Alyssa Lampe
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Dörte DiFiore
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, D-10623 Berlin, Germany
| | | | - Alan R. Fry
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - M. Marvin Seibert
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Jason E. Koglin
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Erik Gallo
- European Synchrotron Radiation Facility, F-38043 Grenoble Cedex, France
| | - Jens Uhlig
- European Synchrotron Radiation Facility, F-38043 Grenoble Cedex, France
| | | | - Tsu-Chien Weng
- SSRL, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Petrus H. Zwart
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - David E. Skinner
- National Energy Research Scientific Computing Center, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Michael J. Bogan
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA,PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - Pieter Glatzel
- European Synchrotron Radiation Facility, F-38043 Grenoble Cedex, France
| | - Garth J. Williams
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Sébastien Boutet
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Paul D. Adams
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Athina Zouni
- Institut für Biologie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany,Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, D-10623 Berlin, Germany
| | - Johannes Messinger
- Institutionen för Kemi, Kemiskt Biologiskt Centrum, Umeå Universitet, Umeå, Sweden
| | - Nicholas K. Sauter
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Uwe Bergmann
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA,Corresponding authors. (U.B.), , (J.Y.), (V.K.Y)
| | - Junko Yano
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA,Corresponding authors. (U.B.), , (J.Y.), (V.K.Y)
| | - Vittal K. Yachandra
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA,Corresponding authors. (U.B.), , (J.Y.), (V.K.Y)
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21
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Headd JJ, Echols N, Afonine PV, Moriarty NW, Gildea RJ, Adams PD. Flexible torsion-angle noncrystallographic symmetry restraints for improved macromolecular structure refinement. Acta Crystallogr D Biol Crystallogr 2014; 70:1346-56. [PMID: 24816103 PMCID: PMC4014122 DOI: 10.1107/s1399004714003277] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 02/13/2014] [Indexed: 11/10/2022]
Abstract
One of the great challenges in refining macromolecular crystal structures is a low data-to-parameter ratio. Historically, knowledge from chemistry has been used to help to improve this ratio. When a macromolecule crystallizes with more than one copy in the asymmetric unit, the noncrystallographic symmetry relationships can be exploited to provide additional restraints when refining the working model. However, although globally similar, NCS-related chains often have local differences. To allow for local differences between NCS-related molecules, flexible torsion-based NCS restraints have been introduced, coupled with intelligent rotamer handling for protein chains, and are available in phenix.refine for refinement of models at all resolutions.
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Affiliation(s)
- Jeffrey J. Headd
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Duke University Medical Center, Durham, NC 27710, USA
| | | | | | | | - Richard J. Gildea
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, England
| | - Paul D. Adams
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Bioengineering, UC Berkeley, Berkeley, CA 94720, USA
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22
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Hattne J, Echols N, Tran R, Kern J, Gildea RJ, Brewster AS, Alonso-Mori R, Glöckner C, Hellmich J, Laksmono H, Sierra RG, Lassalle-Kaiser B, Lampe A, Han G, Gul S, DiFiore D, Milathianaki D, Fry AR, Miahnahri A, White WE, Schafer DW, Seibert MM, Koglin JE, Sokaras D, Weng TC, Sellberg J, Latimer MJ, Glatzel P, Zwart PH, Grosse-Kunstleve RW, Bogan MJ, Messerschmidt M, Williams GJ, Boutet S, Messinger J, Zouni A, Yano J, Bergmann U, Yachandra VK, Adams PD, Sauter NK. Accurate macromolecular structures using minimal measurements from X-ray free-electron lasers. Nat Methods 2014; 11:545-8. [PMID: 24633409 DOI: 10.1038/nmeth.2887] [Citation(s) in RCA: 125] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Accepted: 02/04/2014] [Indexed: 01/19/2023]
Abstract
X-ray free-electron laser (XFEL) sources enable the use of crystallography to solve three-dimensional macromolecular structures under native conditions and without radiation damage. Results to date, however, have been limited by the challenge of deriving accurate Bragg intensities from a heterogeneous population of microcrystals, while at the same time modeling the X-ray spectrum and detector geometry. Here we present a computational approach designed to extract meaningful high-resolution signals from fewer diffraction measurements.
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Affiliation(s)
- Johan Hattne
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Nathaniel Echols
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Rosalie Tran
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Jan Kern
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Richard J Gildea
- 1] Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. [2]
| | - Aaron S Brewster
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Roberto Alonso-Mori
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Carina Glöckner
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, Berlin, Germany
| | - Julia Hellmich
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, Berlin, Germany
| | - Hartawan Laksmono
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Raymond G Sierra
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | | | - Alyssa Lampe
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Guangye Han
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Sheraz Gul
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Dörte DiFiore
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, Berlin, Germany
| | - Despina Milathianaki
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Alan R Fry
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Alan Miahnahri
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - William E White
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Donald W Schafer
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - M Marvin Seibert
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Jason E Koglin
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Dimosthenis Sokaras
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Tsu-Chien Weng
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Jonas Sellberg
- 1] Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, USA. [2] Department of Physics, AlbaNova, Stockholm University, Stockholm, Sweden
| | - Matthew J Latimer
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Pieter Glatzel
- European Synchrotron Radiation Facility, Grenoble, France
| | - Petrus H Zwart
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Ralf W Grosse-Kunstleve
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Michael J Bogan
- 1] Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA. [2] Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Marc Messerschmidt
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Garth J Williams
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Sébastien Boutet
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Johannes Messinger
- Institutionen för Kemi, Kemiskt Biologiskt Centrum, Umeå Universitet, Umeå, Sweden
| | - Athina Zouni
- 1] Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, Berlin, Germany. [2] Institut für Biologie, Humboldt Universität zu Berlin, Berlin, Germany
| | - Junko Yano
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Uwe Bergmann
- Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Vittal K Yachandra
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Paul D Adams
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Nicholas K Sauter
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
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23
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Gildea RJ, Winter G, Evans G. Automated processing of datasets obtained from multiple crystals. Acta Crystallogr A 2013. [DOI: 10.1107/s0108767313098802] [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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Gildea RJ, Winter G, Evans G. Automated processing of datasets obtained from multiple crystals. Acta Crystallogr A 2013. [DOI: 10.1107/s010876731309973x] [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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Kern J, Alonso-Mori R, Tran R, Hattne J, Gildea RJ, Echols N, Glöckner C, Hellmich J, Laksmono H, Sierra RG, Lassalle-Kaiser B, Koroidov S, Lampe A, Han G, Gul S, DiFiore D, Milathianaki D, Fry AR, Miahnahri A, Schafer DW, Messerschmidt M, Seibert MM, Koglin JE, Sokaras D, Weng TC, Sellberg J, Latimer MJ, Grosse-Kunstleve RW, Zwart PH, White WE, Glatzel P, Adams PD, Bogan MJ, Williams GJ, Boutet S, Messinger J, Zouni A, Sauter NK, Yachandra VK, Bergmann U, Yano J. Simultaneous femtosecond X-ray spectroscopy and diffraction of photosystem II at room temperature. Science 2013; 340:491-5. [PMID: 23413188 PMCID: PMC3732582 DOI: 10.1126/science.1234273] [Citation(s) in RCA: 334] [Impact Index Per Article: 30.4] [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] [Indexed: 11/02/2022]
Abstract
Intense femtosecond x-ray pulses produced at the Linac Coherent Light Source (LCLS) were used for simultaneous x-ray diffraction (XRD) and x-ray emission spectroscopy (XES) of microcrystals of photosystem II (PS II) at room temperature. This method probes the overall protein structure and the electronic structure of the Mn4CaO5 cluster in the oxygen-evolving complex of PS II. XRD data are presented from both the dark state (S1) and the first illuminated state (S2) of PS II. Our simultaneous XRD-XES study shows that the PS II crystals are intact during our measurements at the LCLS, not only with respect to the structure of PS II, but also with regard to the electronic structure of the highly radiation-sensitive Mn4CaO5 cluster, opening new directions for future dynamics studies.
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Affiliation(s)
- Jan Kern
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - Rosalie Tran
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Johan Hattne
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Richard J. Gildea
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Nathaniel Echols
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Carina Glöckner
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, D-10623 Berlin, Germany
| | - Julia Hellmich
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, D-10623 Berlin, Germany
| | - Hartawan Laksmono
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Raymond G. Sierra
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - Sergey Koroidov
- Institutionen för Kemi, Kemiskt Biologiskt Centrum, Umeå Universitet, Umeå, Sweden
| | - Alyssa Lampe
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Guangye Han
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Sheraz Gul
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Dörte DiFiore
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, D-10623 Berlin, Germany
| | | | - Alan R. Fry
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Alan Miahnahri
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Donald W. Schafer
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - M. Marvin Seibert
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Jason E. Koglin
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - Tsu-Chien Weng
- SSRL, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Jonas Sellberg
- SSRL, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- Department of Physics, AlbaNova, Stockholm University, S-106 91 Stockholm, Sweden
| | | | | | - Petrus H. Zwart
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - William E. White
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Pieter Glatzel
- European Synchrotron Radiation Facility, F-38043 Grenoble Cedex, France
| | - Paul D. Adams
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Michael J. Bogan
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Garth J. Williams
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Sébastien Boutet
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Johannes Messinger
- Institutionen för Kemi, Kemiskt Biologiskt Centrum, Umeå Universitet, Umeå, Sweden
| | - Athina Zouni
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität, D-10623 Berlin, Germany
| | - Nicholas K. Sauter
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Vittal K. Yachandra
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Uwe Bergmann
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Junko Yano
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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26
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Sierra RG, Laksmono H, Kern J, Tran R, Hattne J, Alonso-Mori R, Lassalle-Kaiser B, Glöckner C, Hellmich J, Schafer DW, Echols N, Gildea RJ, Grosse-Kunstleve RW, Sellberg J, McQueen TA, Fry AR, Messerschmidt MM, Miahnahri A, Seibert MM, Hampton CY, Starodub D, Loh ND, Sokaras D, Weng TC, Zwart PH, Glatzel P, Milathianaki D, White WE, Adams PD, Williams GJ, Boutet S, Zouni A, Messinger J, Sauter NK, Bergmann U, Yano J, Yachandra VK, Bogan MJ. Nanoflow electrospinning serial femtosecond crystallography. Acta Crystallogr D Biol Crystallogr 2012; 68:1584-7. [PMID: 23090408 PMCID: PMC3478121 DOI: 10.1107/s0907444912038152] [Citation(s) in RCA: 153] [Impact Index Per Article: 12.8] [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: 07/24/2012] [Accepted: 09/05/2012] [Indexed: 11/10/2022]
Abstract
An electrospun liquid microjet has been developed that delivers protein microcrystal suspensions at flow rates of 0.14-3.1 µl min(-1) to perform serial femtosecond crystallography (SFX) studies with X-ray lasers. Thermolysin microcrystals flowed at 0.17 µl min(-1) and diffracted to beyond 4 Å resolution, producing 14,000 indexable diffraction patterns, or four per second, from 140 µg of protein. Nanoflow electrospinning extends SFX to biological samples that necessitate minimal sample consumption.
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Affiliation(s)
- Raymond G. Sierra
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Hartawan Laksmono
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Jan Kern
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Rosalie Tran
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Johan Hattne
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | | | | | - Carina Glöckner
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität Berlin, Strasse des 17 Juni 135, 10623 Berlin, Germany
| | - Julia Hellmich
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität Berlin, Strasse des 17 Juni 135, 10623 Berlin, Germany
| | - Donald W. Schafer
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Nathaniel Echols
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Richard J. Gildea
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | | | - Jonas Sellberg
- SSRL, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- Department of Physics, AlbaNova, Stockholm University, S-106 91 Stockholm, Sweden
| | - Trevor A. McQueen
- Department of Chemistry, Stanford University, Stanford, CA 94025, USA
| | - Alan R. Fry
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - Alan Miahnahri
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - M. Marvin Seibert
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Christina Y. Hampton
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Dmitri Starodub
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - N. Duane Loh
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - Tsu-Chien Weng
- SSRL, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Petrus H. Zwart
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Pieter Glatzel
- European Synchrotron Radiation Facility, Grenoble, France
| | | | - William E. White
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Paul D. Adams
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Garth J. Williams
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Sébastien Boutet
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Athina Zouni
- Max-Volmer-Laboratorium für Biophysikalische Chemie, Technische Universität Berlin, Strasse des 17 Juni 135, 10623 Berlin, Germany
| | - Johannes Messinger
- Institutionen för Kemi, Kemiskt Biologiskt Centrum, Umeå Universitet, Umeå, Sweden
| | - Nicholas K. Sauter
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Uwe Bergmann
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Junko Yano
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Vittal K. Yachandra
- Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Michael J. Bogan
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
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Brulatti P, Gildea RJ, Howard JAK, Fattori V, Cocchi M, Williams JAG. Luminescent iridium(III) complexes with N^C^N-coordinated terdentate ligands: dual tuning of the emission energy and application to organic light-emitting devices. Inorg Chem 2012; 51:3813-26. [PMID: 22400487 DOI: 10.1021/ic202756w] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A family of complexes (1a-3a and 1b-3b) was prepared, having the structure Ir(N^C^N)(N^C)Cl. Here, N^C(∧)N represents a terdentate, cyclometallating ligand derived from 1,3-di(2-pyridyl)benzene incorporating CH(3) (1a,b), F (2a,b), or CF(3) (3a,b) substituents at the 4 and 6 positions of the benzene ring, and N^C is 2-phenylpyridine (series a) or 2-(2,4-difluorophenyl)pyridine (series b). The complexes are formed using a stepwise procedure that relies on the initial introduction of the terdentate ligand to form a dichloro-bridged iridium dimer, followed by cleavage with the N^C ligand. (1)H NMR spectroscopy reveals that the isomer that is exclusively formed in each case is that in which the pyridyl ring of the N^C ligand is trans to the cyclometallating aryl ring of the N^C^N ligand. This conclusion is unequivocally confirmed by X-ray diffraction analysis for two of the complexes (1b and 3a). All of the complexes are highly luminescent in degassed solution at room temperature, emitting in the green (1a,b), blue-green (2a,b), and orange-red (3a,b) regions. The bidentate ligand offers independent fine-tuning of the emission energy: for each pair, the "b" complex is blue-shifted relative to the analogous "a" complex. These trends in the excited-state energies are rationalized in terms of the relative magnitudes of the effects of the substituents on the highest occupied and lowest unoccupied orbitals, convincingly supported by time-dependent density functional theory (TD-DFT) calculations. Luminescence quantum yields are high, up to 0.7 in solution and close to unity in a PMMA matrix for the green-emitting complexes. Organic light emitting devices (OLEDs) employing this family of complexes as phosphorescent emitters have been prepared. They display high efficiencies, at least comparable, and in some cases superior, to similar devices using the well-known tris-bidentate complexes such as fac-Ir(ppy)(3). The combination of terdentate and bidentate ligands is seen to offer a versatile approach to tuning of the photophysical properties of iridium-based emitters for such applications.
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Affiliation(s)
- Pierpaolo Brulatti
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, UK
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Gildea RJ, Bourhis LJ, Dolomanov OV, Grosse-Kunstleve RW, Puschmann H, Adams PD, Howard JAK. iotbx.cif: a comprehensive CIF toolbox. J Appl Crystallogr 2011; 44:1259-1263. [PMID: 22199401 PMCID: PMC3236671 DOI: 10.1107/s0021889811041161] [Citation(s) in RCA: 123] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Accepted: 10/06/2011] [Indexed: 11/10/2022] Open
Abstract
iotbx.cif is a new software module for the development of applications that make use of the CIF format. Comprehensive tools are provided for input, output and validation of CIFs, as well as for interconversion with high-level cctbx [Grosse-Kunstleve, Sauter, Moriarty & Adams (2002). J. Appl. Cryst.35, 126-136] crystallographic objects. The interface to the library is written in Python, whilst parsing is carried out using a compiled parser, combining the performance of a compiled language (C++) with the benefits of using an interpreted language.
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Affiliation(s)
- Richard J. Gildea
- Durham University, Department of Chemistry, Durham DH1 3LE, UK
- Lawrence Berkeley National Laboratory, Physical Biosciences Division, MS 64R0121, CA 94720, USA
| | - Luc J. Bourhis
- Durham University, Department of Chemistry, Durham DH1 3LE, UK
| | | | | | - Horst Puschmann
- Durham University, Department of Chemistry, Durham DH1 3LE, UK
| | - Paul D. Adams
- Lawrence Berkeley National Laboratory, Physical Biosciences Division, MS 64R0121, CA 94720, USA
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Puschmann H, Bourhis LJ, Dolomanov OV, Gildea RJ, Howard JAK. One-stop small-molecule crystallography: OLEX2. Acta Crystallogr A 2010. [DOI: 10.1107/s0108767310097606] [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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Dolomanov OV, Bourhis LJ, Gildea RJ, Howard JAK, Puschmann H. OLEX2: a complete structure solution, refinement and analysis program. J Appl Crystallogr 2009. [DOI: 10.1107/s0021889808042726] [Citation(s) in RCA: 16874] [Impact Index Per Article: 1124.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
New software,OLEX2, has been developed for the determination, visualization and analysis of molecular crystal structures. The software has a portable mouse-driven workflow-oriented and fully comprehensive graphical user interface for structure solution, refinement and report generation, as well as novel tools for structure analysis.OLEX2seamlessly links all aspects of the structure solution, refinement and publication process and presents them in a single workflow-driven package, with the ultimate goal of producing an application which will be useful to both chemists and crystallographers.
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