2O01

The Structure of a plant photosystem I supercomplex at 3.4 Angstrom resolution


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1QZVPDB ENTRY 1QZV

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6278pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 278K
Crystal Properties
Matthews coefficientSolvent content
4.1570.33

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 120.054α = 90
b = 188.784β = 95.19
c = 127.518γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100 MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID23-20.875ESRFID23-2

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
13.45091.10.1416.413.6705513.43.4
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)
13.43.5278.90.4753.42.76034

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONSADTHROUGHOUTPDB ENTRY 1QZV3.4406981770551351690.850.3510.3480.409RANDOM44.13
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]
-1.062.780.740.82
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg43.946
r_dihedral_angle_3_deg27.622
r_dihedral_angle_4_deg20.588
r_dihedral_angle_1_deg15.284
r_angle_refined_deg4.101
r_scangle_it1.697
r_scbond_it1.334
r_mcangle_it0.878
r_mcbond_it0.563
r_symmetry_vdw_refined0.411
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg43.946
r_dihedral_angle_3_deg27.622
r_dihedral_angle_4_deg20.588
r_dihedral_angle_1_deg15.284
r_angle_refined_deg4.101
r_scangle_it1.697
r_scbond_it1.334
r_mcangle_it0.878
r_mcbond_it0.563
r_symmetry_vdw_refined0.411
r_nbd_refined0.388
r_xyhbond_nbd_refined0.337
r_nbtor_refined0.334
r_chiral_restr0.216
r_symmetry_hbond_refined0.21
r_metal_ion_refined0.113
r_bond_refined_d0.017
r_gen_planes_refined0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms23599
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms6247

Software

Software
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
ADSCdata collection
DENZOdata reduction
SCALEPACKdata scaling
DMphasing