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Membrane protein crystallography in the era of modern structural biology. Biochem Soc Trans 2020; 48:2505-2524. [DOI: 10.1042/bst20200066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 02/07/2023]
Abstract
The aim of structural biology has been always the study of biological macromolecules structures and their mechanistic behaviour at molecular level. To achieve its goal, multiple biophysical methods and approaches have become part of the structural biology toolbox. Considered as one of the pillars of structural biology, X-ray crystallography has been the most successful method for solving three-dimensional protein structures at atomic level to date. It is however limited by the success in obtaining well-ordered protein crystals that diffract at high resolution. This is especially true for challenging targets such as membrane proteins (MPs). Understanding structure-function relationships of MPs at the biochemical level is vital for medicine and drug discovery as they play critical roles in many cellular processes. Though difficult, structure determination of MPs by X-ray crystallography has significantly improved in the last two decades, mainly due to many relevant technological and methodological developments. Today, numerous MP crystal structures have been solved, revealing many of their mechanisms of action. Yet the field of structural biology has also been through significant technological breakthroughs in recent years, particularly in the fields of single particle electron microscopy (cryo-EM) and X-ray free electron lasers (XFELs). Here we summarise the most important advancements in the field of MP crystallography and the significance of these developments in the present era of modern structural biology.
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2
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Candoni N, Grossier R, Lagaize M, Veesler S. Advances in the Use of Microfluidics to Study Crystallization Fundamentals. Annu Rev Chem Biomol Eng 2019; 10:59-83. [PMID: 31018097 DOI: 10.1146/annurev-chembioeng-060718-030312] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This review compares droplet-based microfluidic systems used to study crystallization fundamentals in chemistry and biology. An original high-throughput droplet-based microfluidic platform is presented. It uses nanoliter droplets, generates a chemical library, and directly solubilizes powder, thus economizing both material and time. It is compatible with all solvents without the need for surfactant. Its flexibility permits phase diagram determination and crystallization studies (screening and optimizing experiments) and makes it easy to use for nonspecialists in microfluidics. Moreover, it allows concentration measurement via ultraviolet spectroscopy and solid characterization via X-ray diffraction analysis.
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Affiliation(s)
- Nadine Candoni
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288 Marseille, France; , , ,
| | - Romain Grossier
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288 Marseille, France; , , ,
| | - Mehdi Lagaize
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288 Marseille, France; , , ,
| | - Stéphane Veesler
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288 Marseille, France; , , ,
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3
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Microfluidic Technologies and Platforms for Protein Crystallography. Bioanalysis 2019. [DOI: 10.1007/978-981-13-6229-3_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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4
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High-throughput in situ X-ray screening of and data collection from protein crystals at room temperature and under cryogenic conditions. Nat Protoc 2018; 13:260-292. [PMID: 29300389 DOI: 10.1038/nprot.2017.135] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Protein crystallography has significantly advanced in recent years, with in situ data collection, in which crystals are placed in the X-ray beam within their growth medium, being a major point of focus. In situ methods eliminate the need to harvest crystals, a previously unavoidable drawback, particularly for often small membrane-protein crystals. Here, we present a protocol for the high-throughput in situ X-ray screening of and data collection from soluble and membrane-protein crystals at room temperature (20-25°C) and under cryogenic conditions. The Mylar in situ method uses Mylar-based film sandwich plates that are inexpensive, easy to make, and compatible with automated imaging, and that show very low background scattering. They support crystallization in microbatch and vapor-diffusion modes, as well as in lipidic cubic phases (LCPs). A set of 3D-printed holders for differently sized patches of Mylar sandwich films makes the method robust and versatile, allows for storage and shipping of crystals, and enables automated mounting at synchrotrons, as well as goniometer-based screening and data collection. The protocol covers preparation of in situ plates and setup of crystallization trials; 3D printing and assembly of holders; opening of plates, isolation of film patches containing crystals, and loading them onto holders; basic screening and data-collection guidelines; and unloading of holders, as well as reuse and recycling of them. In situ plates are prepared and assembled in 1 h; holders are 3D-printed and assembled in ≤90 min; and an in situ plate is opened, and a film patch containing crystals is isolated and loaded onto a holder in 5 min.
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5
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Gerard CJJ, Ferry G, Vuillard LM, Boutin JA, Chavas LMG, Huet T, Ferte N, Grossier R, Candoni N, Veesler S. Crystallization via tubing microfluidics permits both in situ and ex situ X-ray diffraction. Acta Crystallogr F Struct Biol Commun 2017; 73:574-578. [PMID: 28994406 PMCID: PMC5633925 DOI: 10.1107/s2053230x17013826] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 09/25/2017] [Indexed: 11/10/2022] Open
Abstract
A microfluidic platform was used to address the problems of obtaining diffraction-quality crystals and crystal handling during transfer to the X-ray diffractometer. Crystallization conditions of a protein of pharmaceutical interest were optimized and X-ray data were collected both in situ and ex situ.
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Affiliation(s)
- Charline J. J. Gerard
- CINaM–CNRS, Aix-Marseille Université, Campus de Luminy, Case 913, 13288 Marseille CEDEX 09, France
| | - Gilles Ferry
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-sur-Seine, France
| | - Laurent M. Vuillard
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-sur-Seine, France
| | - Jean A. Boutin
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-sur-Seine, France
| | | | - Tiphaine Huet
- PROXIMA-1, Synchrotron SOLEIL, Gif-sur-Yvette, France
| | - Nathalie Ferte
- CINaM–CNRS, Aix-Marseille Université, Campus de Luminy, Case 913, 13288 Marseille CEDEX 09, France
| | - Romain Grossier
- CINaM–CNRS, Aix-Marseille Université, Campus de Luminy, Case 913, 13288 Marseille CEDEX 09, France
| | - Nadine Candoni
- CINaM–CNRS, Aix-Marseille Université, Campus de Luminy, Case 913, 13288 Marseille CEDEX 09, France
| | - Stéphane Veesler
- CINaM–CNRS, Aix-Marseille Université, Campus de Luminy, Case 913, 13288 Marseille CEDEX 09, France
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6
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Shi HH, Xiao Y, Ferguson S, Huang X, Wang N, Hao HX. Progress of crystallization in microfluidic devices. LAB ON A CHIP 2017; 17:2167-2185. [PMID: 28585942 DOI: 10.1039/c6lc01225f] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Microfluidic technology provides a unique environment for the investigation of crystallization processes at the nano or meso scale. The convenient operation and precise control of process parameters, at these scales of operation enabled by microfluidic devices, are attracting significant and increasing attention in the field of crystallization. In this paper, developments and applications of microfluidics in crystallization research including: crystal nucleation and growth, polymorph and cocrystal screening, preparation of nanocrystals, solubility and metastable zone determination, are summarized and discussed. The materials used in the construction and the structure of these microfluidic devices are also summarized and methods for measuring and modelling crystal nucleation and growth process as well as the enabling analytical methods are also briefly introduced. The low material consumption, high efficiency and precision of microfluidic crystallizations are of particular significance for active pharmaceutical ingredients, proteins, fine chemicals, and nanocrystals. Therefore, it is increasingly adopted as a mainstream technology in crystallization research and development.
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Affiliation(s)
- Huan-Huan Shi
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
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7
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Broecker J, Klingel V, Ou WL, Balo AR, Kissick D, Ogata CM, Kuo A, Ernst OP. A Versatile System for High-Throughput In Situ X-ray Screening and Data Collection of Soluble and Membrane-Protein Crystals. CRYSTAL GROWTH & DESIGN 2016; 16:6318-6326. [PMID: 28261000 PMCID: PMC5328415 DOI: 10.1021/acs.cgd.6b00950] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 09/30/2016] [Indexed: 05/20/2023]
Abstract
In recent years, in situ data collection has been a major focus of progress in protein crystallography. Here, we introduce the Mylar in situ method using Mylar-based sandwich plates that are inexpensive, easy to make and handle, and show significantly less background scattering than other setups. A variety of cognate holders for patches of Mylar in situ sandwich films corresponding to one or more wells makes the method robust and versatile, allows for storage and shipping of entire wells, and enables automated crystal imaging, screening, and goniometer-based X-ray diffraction data-collection at room temperature and under cryogenic conditions for soluble and membrane-protein crystals grown in or transferred to these plates. We validated the Mylar in situ method using crystals of the water-soluble proteins hen egg-white lysozyme and sperm whale myoglobin as well as the 7-transmembrane protein bacteriorhodopsin from Haloquadratum walsbyi. In conjunction with current developments at synchrotrons, this approach promises high-resolution structural studies of membrane proteins to become faster and more routine.
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Affiliation(s)
- Jana Broecker
- Department of Biochemistry and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
- E-mail:
| | - Viviane Klingel
- Department of Biochemistry and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Wei-Lin Ou
- Department of Biochemistry and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Aidin R. Balo
- Department of Biochemistry and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - David
J. Kissick
- GM/CA
at Advanced Photon Source, Argonne National
Laboratory, Lemont, Illinois 60439, United States
| | - Craig M. Ogata
- GM/CA
at Advanced Photon Source, Argonne National
Laboratory, Lemont, Illinois 60439, United States
| | - Anling Kuo
- Department of Biochemistry and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Oliver P. Ernst
- Department of Biochemistry and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
- E-mail:
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8
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Ghazal A, Lafleur JP, Mortensen K, Kutter JP, Arleth L, Jensen GV. Recent advances in X-ray compatible microfluidics for applications in soft materials and life sciences. LAB ON A CHIP 2016; 16:4263-4295. [PMID: 27731448 DOI: 10.1039/c6lc00888g] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The increasingly narrow and brilliant beams at X-ray facilities reduce the requirements for both sample volume and data acquisition time. This creates new possibilities for the types and number of sample conditions that can be examined but simultaneously increases the demands in terms of sample preparation. Microfluidic-based sample preparation techniques have emerged as elegant alternatives that can be integrated directly into the experimental X-ray setup remedying several shortcomings of more traditional methods. We review the use of microfluidic devices in conjunction with X-ray measurements at synchrotron facilities in the context of 1) mapping large parameter spaces, 2) performing time resolved studies of mixing-induced kinetics, and 3) manipulating/processing samples in ways which are more demanding or not accessible on the macroscale. The review covers the past 15 years and focuses on applications where synchrotron data collection is performed in situ, i.e. directly on the microfluidic platform or on a sample jet from the microfluidic device. Considerations such as the choice of materials and microfluidic designs are addressed. The combination of microfluidic devices and measurements at large scale X-ray facilities is still emerging and far from mature, but it definitely offers an exciting array of new possibilities.
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Affiliation(s)
- Aghiad Ghazal
- Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.
| | - Josiane P Lafleur
- Dept. of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Kell Mortensen
- Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.
| | - Jörg P Kutter
- Dept. of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Lise Arleth
- Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.
| | - Grethe V Jensen
- Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.
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9
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Maeki M, Yamazaki S, Pawate AS, Ishida A, Tani H, Yamashita K, Sugishima M, Watanabe K, Tokeshi M, Kenis PJA, Miyazaki M. A microfluidic-based protein crystallization method in 10 micrometer-sized crystallization space. CrystEngComm 2016. [DOI: 10.1039/c6ce01671e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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10
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MAEKI M, YAMAGUCHI H, TOKESHI M, MIYAZAKI M. Microfluidic Approaches for Protein Crystal Structure Analysis. ANAL SCI 2016; 32:3-9. [DOI: 10.2116/analsci.32.3] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Masatoshi MAEKI
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University
- Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology
| | | | - Manabu TOKESHI
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University
| | - Masaya MIYAZAKI
- Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology
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11
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Michalska K, Tan K, Chang C, Li H, Hatzos-Skintges C, Molitsky M, Alkire R, Joachimiak A. In situ X-ray data collection and structure phasing of protein crystals at Structural Biology Center 19-ID. JOURNAL OF SYNCHROTRON RADIATION 2015; 22:1386-95. [PMID: 26524303 PMCID: PMC4629866 DOI: 10.1107/s1600577515016598] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 09/05/2015] [Indexed: 05/22/2023]
Abstract
A prototype of a 96-well plate scanner for in situ data collection has been developed at the Structural Biology Center (SBC) beamline 19-ID, located at the Advanced Photon Source, USA. The applicability of this instrument for protein crystal diffraction screening and data collection at ambient temperature has been demonstrated. Several different protein crystals, including selenium-labeled, were used for data collection and successful SAD phasing. Without the common procedure of crystal handling and subsequent cryo-cooling for data collection at T = 100 K, crystals in a crystallization buffer show remarkably low mosaicity (<0.1°) until deterioration by radiation damage occurs. Data presented here show that cryo-cooling can cause some unexpected structural changes. Based on the results of this study, the integration of the plate scanner into the 19-ID end-station with automated controls is being prepared. With improvement of hardware and software, in situ data collection will become available for the SBC user program including remote access.
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Affiliation(s)
- Karolina Michalska
- Midwest Center for Structural Genomics, Biosciences Division, Argonne National Laboratory, USA
- Structural Biology Center, Biosciences Division, Argonne National Laboratory, USA
| | - Kemin Tan
- Midwest Center for Structural Genomics, Biosciences Division, Argonne National Laboratory, USA
- Structural Biology Center, Biosciences Division, Argonne National Laboratory, USA
| | - Changsoo Chang
- Midwest Center for Structural Genomics, Biosciences Division, Argonne National Laboratory, USA
- Structural Biology Center, Biosciences Division, Argonne National Laboratory, USA
| | - Hui Li
- Midwest Center for Structural Genomics, Biosciences Division, Argonne National Laboratory, USA
| | | | - Michael Molitsky
- Structural Biology Center, Biosciences Division, Argonne National Laboratory, USA
| | - Randy Alkire
- Structural Biology Center, Biosciences Division, Argonne National Laboratory, USA
| | - Andrzej Joachimiak
- Midwest Center for Structural Genomics, Biosciences Division, Argonne National Laboratory, USA
- Structural Biology Center, Biosciences Division, Argonne National Laboratory, USA
- Department of Biochemistry and Molecular Biology, University of Chicago, USA
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12
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Huang CY, Olieric V, Ma P, Panepucci E, Diederichs K, Wang M, Caffrey M. In meso in situ serial X-ray crystallography of soluble and membrane proteins. ACTA CRYSTALLOGRAPHICA. SECTION D, BIOLOGICAL CRYSTALLOGRAPHY 2015; 71:1238-56. [PMID: 26057665 PMCID: PMC4461204 DOI: 10.1107/s1399004715005210] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 03/13/2015] [Indexed: 11/21/2022]
Abstract
The lipid cubic phase (LCP) continues to grow in popularity as a medium in which to generate crystals of membrane (and soluble) proteins for high-resolution X-ray crystallographic structure determination. To date, the PDB includes 227 records attributed to the LCP or in meso method. Among the listings are some of the highest profile membrane proteins, including the β2-adrenoreceptor-Gs protein complex that figured in the award of the 2012 Nobel Prize in Chemistry to Lefkowitz and Kobilka. The most successful in meso protocol to date uses glass sandwich crystallization plates. Despite their many advantages, glass plates are challenging to harvest crystals from. However, performing in situ X-ray diffraction measurements with these plates is not practical. Here, an alternative approach is described that provides many of the advantages of glass plates and is compatible with high-throughput in situ measurements. The novel in meso in situ serial crystallography (IMISX) method introduced here has been demonstrated with AlgE and PepT (alginate and peptide transporters, respectively) as model integral membrane proteins and with lysozyme as a test soluble protein. Structures were solved by molecular replacement and by experimental phasing using bromine SAD and native sulfur SAD methods to resolutions ranging from 1.8 to 2.8 Å using single-digit microgram quantities of protein. That sulfur SAD phasing worked is testament to the exceptional quality of the IMISX diffraction data. The IMISX method is compatible with readily available, inexpensive materials and equipment, is simple to implement and is compatible with high-throughput in situ serial data collection at macromolecular crystallography synchrotron beamlines worldwide. Because of its simplicity and effectiveness, the IMISX approach is likely to supplant existing in meso crystallization protocols. It should prove particularly attractive in the area of ligand screening for drug discovery and development.
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Affiliation(s)
- Chia-Ying Huang
- Membrane Structural and Functional Biology Group, Schools of Medicine and Biochemistry and Immunology, Trinity College, Dublin, Ireland
| | - Vincent Olieric
- Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
| | - Pikyee Ma
- Membrane Structural and Functional Biology Group, Schools of Medicine and Biochemistry and Immunology, Trinity College, Dublin, Ireland
| | - Ezequiel Panepucci
- Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
| | - Kay Diederichs
- Fachbereich Biologie, Universität Konstanz, M647, D-78457 Konstanz, Germany
| | - Meitian Wang
- Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
| | - Martin Caffrey
- Membrane Structural and Functional Biology Group, Schools of Medicine and Biochemistry and Immunology, Trinity College, Dublin, Ireland
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13
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Maeki M, Pawate AS, Yamashita K, Kawamoto M, Tokeshi M, Kenis PJA, Miyazaki M. A Method of Cryoprotection for Protein Crystallography by Using a Microfluidic Chip and Its Application for in Situ X-ray Diffraction Measurements. Anal Chem 2015; 87:4194-200. [DOI: 10.1021/acs.analchem.5b00151] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Masatoshi Maeki
- Department
of Molecular and Material Sciences, Interdisciplinary Graduate School
of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- Division
of Biotechnology and Macromolecular Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan
- Advanced
Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology, 807-1 Shuku, Tosu, Saga 841-0052, Japan
| | - Ashtamurthy S. Pawate
- Department
of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Kenichi Yamashita
- Department
of Molecular and Material Sciences, Interdisciplinary Graduate School
of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- Advanced
Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology, 807-1 Shuku, Tosu, Saga 841-0052, Japan
| | - Masahide Kawamoto
- Kyushu Synchrotron
Light Research Center, 8-7 Yayoigaoka, Tosu, Saga 841−0051, Japan
| | - Manabu Tokeshi
- Division
of Biotechnology and Macromolecular Chemistry, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan
| | - Paul J. A. Kenis
- Department
of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Masaya Miyazaki
- Department
of Molecular and Material Sciences, Interdisciplinary Graduate School
of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- Advanced
Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology, 807-1 Shuku, Tosu, Saga 841-0052, Japan
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14
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Lee MY, Faucher F, Jia Z. Growth of Diffraction-Quality Protein Crystals Using a Harvestable Microfluidic Device. CRYSTAL GROWTH & DESIGN 2014; 14:3179-3181. [PMID: 25013386 PMCID: PMC4082397 DOI: 10.1021/cg500450b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 05/19/2014] [Indexed: 06/03/2023]
Abstract
Protein crystallization is the major bottleneck in the entire process of protein crystallography, and obtaining diffraction-quality crystals can be unpredictable and sometimes exceptionally difficult, requiring many rounds of high-throughput screening. Recently, a more time- and cost-saving strategy to use the commercially available microfluidic devices called Crystal Formers has emerged. Herein we show the application of such a device using a protein from Legionella pneumophila called LidL that is predicted to be involved in the ability to efficiently manipulate host cell trafficking events once internalized by the host cell. After setting up just one 96-channel Crystal Former tray, we were able to obtain a diffraction-quality crystal that diffracted to 2.76 Å. These results show that Crystal Formers can be used to screen and optimize crystals to directly produce crystals for structure determination.
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15
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TAIRA S, UEMATSU K, KANEKO D, KATANO H. Mass Spectrometry Imaging: Applications to Food Science. ANAL SCI 2014; 30:197-203. [DOI: 10.2116/analsci.30.197] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Shu TAIRA
- Department of Bioscience, Fukui Prefectural University
| | - Kohei UEMATSU
- Department of Bioscience, Fukui Prefectural University
| | - Daisaku KANEKO
- Frontier Research Academy for Young Researchers, Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology
| | - Hajime KATANO
- Department of Bioscience, Fukui Prefectural University
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16
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Maeki M, Teshima Y, Yoshizuka S, Yamaguchi H, Yamashita K, Miyazaki M. Controlling Protein Crystal Nucleation by Droplet-Based Microfluidics. Chemistry 2013; 20:1049-56. [DOI: 10.1002/chem.201303270] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Indexed: 11/07/2022]
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17
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Yamaguchi H, Maeki M, Yamashita K, Nakamura H, Miyazaki M, Maeda H. Controlling one protein crystal growth by droplet-based microfluidic system. ACTA ACUST UNITED AC 2013; 153:339-46. [DOI: 10.1093/jb/mvt001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Maeki M, Yamaguchi H, Yamashita K, Nakamura H, Miyazaki M, Maeda H. A method for generating single crystals that rely on internal fluid dynamics of microdroplets. Chem Commun (Camb) 2012; 48:5037-9. [PMID: 22499042 DOI: 10.1039/c2cc30637a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The single crystallization method by focusing on the characteristic internal fluid dynamics of the microdroplets was explored. Also the theoretical background was discussed, and the droplet size for obtaining only a single crystal within a microdroplet was estimated.
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Affiliation(s)
- Masatoshi Maeki
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga-Kouen, Kasuga, Fukuoka, Japan
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19
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Nitahara S, Maeki M, Yamaguchi H, Yamashita K, Miyazaki M, Maeda H. Three-dimensional Raman spectroscopic imaging of protein crystals deposited on a nanodroplet. Analyst 2012; 137:5730-5. [DOI: 10.1039/c2an35942a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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