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Title: Capture and X-ray diffraction studies of protein microcrystals in a microfluidic trap array

Journal Article · · Acta Crystallographica. Section D: Biological Crystallography (Online)
 [1];  [2];  [1];  [1];  [1];  [1];  [3];  [3];  [3];  [4];  [4];  [1];  [5]
  1. Stanford Univ., Stanford, CA (United States)
  2. Univ. of California, Berkeley, CA (United States); Johns Hopkins Univ. School of Medicine, Balitmore, MD (United States)
  3. SLAC National Accelerator Laboratory, Stanford, CA (United States)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. Johns Hopkins Univ., Baltimore, MD (United States)

X-ray free-electron lasers (XFELs) promise to enable the collection of interpretable diffraction data from samples that are refractory to data collection at synchrotron sources. At present, however, more efficient sample-delivery methods that minimize the consumption of microcrystalline material are needed to allow the application of XFEL sources to a wide range of challenging structural targets of biological importance. Here, a microfluidic chip is presented in which microcrystals can be captured at fixed, addressable points in a trap array from a small volume (<10 µl) of a pre-existing slurry grown off-chip. The device can be mounted on a standard goniostat for conducting diffraction experiments at room temperature without the need for flash-cooling. Proof-of-principle tests with a model system (hen egg-white lysozyme) demonstrated the high efficiency of the microfluidic approach for crystal harvesting, permitting the collection of sufficient data from only 265 single-crystal still images to permit determination and refinement of the structure of the protein. This work shows that microfluidic capture devices can be readily used to facilitate data collection from protein microcrystals grown in traditional laboratory formats, enabling analysis when cryopreservation is problematic or when only small numbers of crystals are available. Such microfluidic capture devices may also be useful for data collection at synchrotron sources.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-76SF00515; AC02-05CH11231
OSTI ID:
1189952
Alternate ID(s):
OSTI ID: 1512102
Journal Information:
Acta Crystallographica. Section D: Biological Crystallography (Online), Vol. 71, Issue 4; ISSN 1399-0047
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 52 works
Citation information provided by
Web of Science

References (65)

Goniometer-based femtosecond crystallography with X-ray free electron lasers journal October 2014
Hidden alternative structures of proline isomerase essential for catalysis journal December 2009
Biomolecular cryocrystallography: Structural changes during flash-cooling journal March 2004
Solving structures of protein complexes by molecular replacement with Phaser journal December 2006
Micro-crystallography comes of age journal October 2012
The plug-based nanovolume Microcapillary Protein Crystallization System (MPCS) journal October 2008
ChipX: A Novel Microfluidic Chip for Counter-Diffusion Crystallization of Biomolecules and in Situ Crystal Analysis at Room Temperature journal July 2013
Announcing the worldwide Protein Data Bank journal December 2003
A robust and scalable microfluidic metering method that allows protein crystal growth by free interface diffusion journal December 2002
Microfluidic chips for the crystallization of biomacromolecules by counter-diffusion and on-chip crystal X-ray analysis journal January 2009
Toward on-chip X-ray analysis journal January 2005
High-Resolution Protein Structure Determination by Serial Femtosecond Crystallography journal May 2012
Femtosecond protein nanocrystallography—data analysis methods journal January 2010
Transmission electron microscopy as a tool for nanocrystal characterization pre- and post-injector journal July 2014
Femtosecond X-ray protein nanocrystallography journal February 2011
Protein crystal structure obtained at 2.9 A resolution from injecting bacterial cells into an X-ray free-electron laser beam journal August 2014
Taking snapshots of photosynthetic water oxidation using femtosecond X-ray diffraction and spectroscopy journal July 2014
From Macrofluidics to Microfluidics for the Crystallization of Biological Macromolecules journal November 2007
Review of cell and particle trapping in microfluidic systems journal September 2009
Crystal Cryocooling Distorts Conformational Heterogeneity in a Model Michaelis Complex of DHFR journal June 2014
Simultaneous Femtosecond X-ray Spectroscopy and Diffraction of Photosystem II at Room Temperature journal February 2013
A Microfluidic System for Studying Ageing and Dynamic Single-Cell Responses in Budding Yeast journal June 2014
Serial time-resolved crystallography of photosystem II using a femtosecond X-ray laser journal July 2014
Femtosecond diffractive imaging with a soft-X-ray free-electron laser journal November 2006
Multiparameter Screening on SlipChip Used for Nanoliter Protein Crystallization Combining Free Interface Diffusion and Microbatch Methods journal January 2010
Determination of damage-free crystal structure of an X-ray–sensitive protein using an XFEL journal May 2014
A Microfluidic Device for Kinetic Optimization of Protein Crystallization and In Situ Structure Determination journal March 2006
Liquid sample delivery techniques for serial femtosecond crystallography journal July 2014
Serial Femtosecond Crystallography of G Protein-Coupled Receptors journal December 2013
Accurate macromolecular structures using minimal measurements from X-ray free-electron lasers journal March 2014
Effects of temperature on protein structure and dynamics: x-ray crystallographic studies of the protein ribonuclease-A at nine different temperatures from 98 to 320K journal March 1992
Dynamic single cell culture array journal January 2006
Highly-efficient single-cell capture in microfluidic array chips using differential hydrodynamic guiding structures journal March 2011
Small is beautiful: protein micro-crystallography journal August 1998
Mechanisms, kinetics, impurities and defects: consequences in macromolecular crystallization journal March 2014
First lasing and operation of an ångstrom-wavelength free-electron laser journal August 2010
Room temperature femtosecond X-ray diffraction of photosystem II microcrystals journal June 2012
RADDOSE-3D : time- and space-resolved modelling of dose in macromolecular crystallography journal June 2013
Lipidic cubic phase injector facilitates membrane protein serial femtosecond crystallography journal February 2014
Microfluidic control of cell pairing and fusion journal January 2009
Fixed-target protein serial microcrystallography with an x-ray free electron laser journal August 2014
Features and development of Coot journal March 2010
Fabrication of X-ray compatible microfluidic platforms for protein crystallization journal November 2012
A microfluidic approach for protein structure determination at room temperature via on-chip anomalous diffraction journal January 2013
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
Version 1.2 of the Crystallography and NMR system journal October 2007
Nanoliter microfluidic hybrid method for simultaneous screening and optimization validated with crystallization of membrane proteins journal December 2006
Cryocrystallography of biological macromolecules: a generally applicable method journal February 1988
Development of high-performance X-ray transparent crystallization plates for in situ protein crystal screening and analysis journal June 2011
Room-temperature serial crystallography using a kinetically optimized microfluidic device for protein crystallization and on-chip X-ray diffraction journal August 2014
The Protein Data Bank journal January 2000
Microcrystallization techniques for serial femtosecond crystallography using photosystem II from Thermosynechococcus elongatus as a model system
  • Kupitz, Christopher; Grotjohann, Ingo; Conrad, Chelsie E.
  • Philosophical Transactions of the Royal Society B: Biological Sciences, Vol. 369, Issue 1647 https://doi.org/10.1098/rstb.2013.0316
journal July 2014
A trap-and-release integrated microfluidic system for dynamic microarray applications journal January 2007
Generation of Size-Controlled, Submicrometer Protein Crystals journal May 2005
Accessing protein conformational ensembles using room-temperature X-ray crystallography journal September 2011
Monolithic Microfabricated Valves and Pumps by Multilayer Soft Lithography journal April 2000
Gas dynamic virtual nozzle for generation of microscopic droplet streams journal September 2008
Phaser crystallographic software journal July 2007
Crystallographic model quality at a glance journal February 2009
Natively Inhibited Trypanosoma brucei Cathepsin B Structure Determined by Using an X-ray Laser journal November 2012
Nanoflow electrospinning serial femtosecond crystallography journal October 2012
Nanoliter-Scale Protein Crystallization and Screening with a Microfluidic Droplet Robot journal May 2014
PARP1 exhibits enhanced association and catalytic efficiency with γH2A.X-nucleosome journal December 2019
Cavin1 intrinsically disordered domains are essential for fuzzy electrostatic interactions and caveola formation journal February 2021
PHENIX: a comprehensive Python-based system for macromolecular structure solution. text January 2010

Cited By (7)

Pink-beam serial crystallography journal November 2017
Nylon mesh-based sample holder for fixed-target serial femtosecond crystallography journal May 2019
Microfluidics: From crystallization to serial time-resolved crystallography journal May 2017
The microfluidic laboratory at Synchrotron SOLEIL journal January 2020
Sample delivery for serial crystallography at free-electron lasers and synchrotrons journal January 2019
A Graphene-Based Microfluidic Platform for Electrocrystallization and In Situ X-ray Diffraction journal February 2018
Strategies for sample delivery for femtosecond crystallography text January 2019

Figures / Tables (9)


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