7COU

Structure of cyanobacterial photosystem II in the dark S1 state


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 5WS5 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1BATCH MODE293PEG, magnesium sulfate
Crystal Properties
Matthews coefficientSolvent content
3.5465.3

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 126.15α = 90
b = 232.7β = 90
c = 288.25γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293CCDMPCCD2017-04-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1FREE ELECTRON LASERSACLA BEAMLINE BL31.77SACLABL3

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)CC (Half)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.25401000.99965.3846.8399661
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.252.330.615

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT5WS52.2539.9651.333832561925696.030.17070.16850.211461.3715
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms41493
Nucleic Acid Atoms
Solvent Atoms2118
Heterogen Atoms9263

Software

Software
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
DIALSdata reduction
DIALSdata scaling
PHASERphasing