X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3ARC 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1Oil-Microbatch Method6.1285Sr-PSII protein was crystallised in 4.5-5.5%PEG1450, 20mM Mes-NaOH, pH 6.1, 20mM NaCl, 3-4mM SrCl2, Oil-Microbatch Method, temperature 285K
Crystal Properties
Matthews coefficientSolvent content
3.3963.72

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 121.86α = 90
b = 228.79β = 90
c = 285.76γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMAR225HE2011-06-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSPRING-8 BEAMLINE BL44XU0.76SPring-8BL44XU

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
12.12099.80.0818.17.44606774376442140.8
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.12.151000.82.67.1460678

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT3ARC2.119.9624606784376442303499.770.1980.17760.17610.2053RANDOM37.6797
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]
2.79-1.08-1.71
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.298
r_dihedral_angle_4_deg14.053
r_dihedral_angle_3_deg13.504
r_dihedral_angle_1_deg5.056
r_angle_refined_deg2.97
r_chiral_restr0.074
r_bond_refined_d0.009
r_gen_planes_refined0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms41495
Nucleic Acid Atoms
Solvent Atoms2037
Heterogen Atoms9666

Software

Software
Software NamePurpose
XSCALEdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
XDSdata reduction
CNSphasing