3A0B

Crystal structure of Br-substituted Photosystem II complex


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2AXTPDB ENTRY 2AXT

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP629320% PEG 1450, 40mM MgSO4, 10mM MgCl2, 25% glycerol, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
3.8868.31

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 130.589α = 90
b = 226.394β = 90
c = 307.514γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152007-06-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSPRING-8 BEAMLINE BL41XU0.9SPring-8BL41XU

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
13.75089.40.0760.07626.36.489037-3
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)
3.73.8354.30.7320.7321.65.66038

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)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 2AXT3.734.783926420085.80.3020.3020.358RANDOM167.2
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]
30.8432.09-62.92
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d29.6
c_improper_angle_d5.75
c_angle_deg3.6
c_bond_d0.033
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d29.6
c_improper_angle_d5.75
c_angle_deg3.6
c_bond_d0.033
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms40924
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms7064

Software

Software
Software NamePurpose
CNSrefinement
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
CNSphasing