3KZI

Crystal Structure of Monomeric Form of Cyanobacterial Photosystem II


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1batch7291PEG 400, PIPES, MES, CaCl2, pH 7, batch, temperature 291.0K
Crystal Properties
Matthews coefficientSolvent content
3.7867.44

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 119.89α = 90
b = 224.69β = 90
c = 337.28γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2008-02-23MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID290.97915ESRFID29

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym I (Observed)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
13.63089.20.1120.07511.354.1153178474171
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
3.63.768.90.4770.6382.344.242829

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-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 3BZ13.629.872.54733294689.20.2970.2970.308RANDOM162.6
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]
-16.38-5.0321.41
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d18.1
c_scangle_it7.62
c_scbond_it6.7
c_angle_deg2.1
c_mcangle_it2.01
c_improper_angle_d1.22
c_mcbond_it1.14
c_bond_d0.013
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms20318
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms4360

Software

Software
Software NamePurpose
ADSCdata collection
PHASERphasing
CNSrefinement
XDSdata reduction
XDSdata scaling