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Title: Improvements in serial femtosecond crystallography of photosystem II by optimizing crystal uniformity using microseeding procedures

Journal Article · · Structural Dynamics
DOI:https://doi.org/10.1063/1.4919741· OSTI ID:1190859
 [1];  [2];  [1];  [2];  [3];  [4];  [2];  [2];  [1]
  1. Humboldt Univ. of Berlin, Berlin (Germany); Technische Univ. Berlin (Germany). Max-Volmer-Lab. fuer Biophysikalische Chemie
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Physical Biosciences Div.
  3. Humboldt Univ. of Berlin, Berlin (Germany)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

In photosynthesis, photosystem II (PSII) is the multi-subunit membrane protein complex that catalyzes photo-oxidation of water into dioxygen through the oxygen evolving complex (OEC). To understand the water oxidation reaction, it is important to get structural information about the transient and intermediate states of the OEC in the dimeric PSII core complex (dPSIIcc). In recent times, femtosecond X-ray pulses from the free electron laser (XFEL) are being used to obtain X-ray diffraction (XRD) data of dPSIIcc microcrystals at room temperature that are free of radiation damage. In our experiments at the XFEL, we used an electrospun liquid microjet setup that requires microcrystals less than 40 μm in size. In this study, we explored various microseeding techniques to get a high yield of monodisperse uniform-sized microcrystals. Monodisperse microcrystals of dPSIIcc of uniform size were a key to improve the stability of the jet and the quality of XRD data obtained at the XFEL. This was evident by an improvement of the quality of the datasets obtained, from 6.5 Å, using crystals grown without the micro seeding approach, to 4.5 Å using crystals generated with the new method.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231; GM055302
OSTI ID:
1190859
Alternate ID(s):
OSTI ID: 1421052; OSTI ID: 1512111
Journal Information:
Structural Dynamics, Vol. 2, Issue 4; ISSN 2329-7778
Publisher:
American Crystallographic Association/AIPCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

References (28)

Predicting transmembrane protein topology with a hidden markov model: application to complete genomes11Edited by F. Cohen journal January 2001
How many drug targets are there? journal December 2006
Overcoming the challenges of membrane protein crystallography journal October 2008
Small is beautiful: protein micro-crystallography journal August 1998
Energy recovery linacs as synchrotron radiation sources (invited) journal March 2002
Taking snapshots of photosynthetic water oxidation using femtosecond X-ray diffraction and spectroscopy journal July 2014
Time-resolved serial crystallography captures high-resolution intermediates of photoactive yellow protein journal December 2014
Light induced oxidative water splitting in photosynthesis: Energetics, kinetics and mechanism journal July 2011
COOPERATION OF CHARGES IN PHOTOSYNTHETIC O 2 EVOLUTION–I. A LINEAR FOUR STEP MECHANISM journal June 1970
Crystal structure of oxygen-evolving photosystem II at a resolution of 1.9 Å journal April 2011
X-ray damage to the Mn4Ca complex in single crystals of photosystem II: A case study for metalloprotein crystallography journal August 2005
Structural Changes of the Oxygen-evolving Complex in Photosystem II during the Catalytic Cycle journal June 2013
Room temperature femtosecond X-ray diffraction of photosystem II microcrystals journal June 2012
Simultaneous Femtosecond X-ray Spectroscopy and Diffraction of Photosystem II at Room Temperature journal February 2013
Serial time-resolved crystallography of photosystem II using a femtosecond X-ray laser journal July 2014
Native structure of photosystem II at 1.95 Å resolution viewed by femtosecond X-ray pulses journal November 2014
Mix and Inject: Reaction Initiation by Diffusion for Time-Resolved Macromolecular Crystallography journal January 2013
Purification, characterisation and crystallisation of photosystem II from Thermosynechococcus elongatus cultivated in a new type of photobioreactor journal January 2005
The Coherent X-ray Imaging (CXI) instrument at the Linac Coherent Light Source (LCLS) journal March 2010
X-ray tests of a Pixel Array Detector for coherent x-ray imaging at the Linac Coherent Light Source journal March 2009
Extinction coefficients and critical solubilisation concentrations of photosystems I and II from Thermosynechococcus elongatus journal June 2005
Crystallization and the Crystal Properties of the Oxygen-Evolving Photosystem II from Synechococcus vulcanus journal December 2000
Cyanobacterial photosystem II at 2.9-Å resolution and the role of quinones, lipids, channels and chloride journal February 2009
Size Determination of Cyanobacterial and Higher Plant Photosystem II by Gel Permeation Chromatography, Light Scattering, and Ultracentrifugation journal March 2005
Transport and metabolism of d-lactate in Jerusalem artichoke mitochondria journal June 2005
Seeds to crystals journal April 2003
Nanoflow electrospinning serial femtosecond crystallography journal October 2012
Ultra-precise characterization of LCLS hard X-ray focusing mirrors by high resolution slope measuring deflectometry journal January 2012

Cited By (9)

Structure of photosystem II and substrate binding at room temperature journal November 2016
Concentric-flow electrokinetic injector enables serial crystallography of ribosome and photosystem II journal November 2015
Drop-on-demand sample delivery for studying biocatalysts in action at X-ray free-electron lasers journal February 2017
Structures of the intermediates of Kok’s photosynthetic water oxidation clock journal November 2018
Supersaturation-controlled microcrystallization and visualization analysis for serial femtosecond crystallography journal February 2018
Assessment of the manganese cluster’s oxidation state via photoactivation of photosystem II microcrystals journal December 2019
Successful sample preparation for serial crystallography experiments journal November 2019
Comparing serial X-ray crystallography and microcrystal electron diffraction (MicroED) as methods for routine structure determination from small macromolecular crystals journal February 2020
Supersaturation-controlled microcrystallization and visualization analysis for serial femtosecond crystallography text January 2018