7M75

Room Temperature XFEL Crystallography reveals asymmetry in the vicinity of the two phylloquinones in Photosystem I


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1JB0PDB entry 1JB0

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1BATCH MODE2985 mM MES, pH 6.0, 12 mM sodium sulfate, 0.2% beta-dodecyl maltoside
Crystal Properties
Matthews coefficientSolvent content
7.6183.84

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 285.429α = 90
b = 285.429β = 90
c = 166.543γ = 120
Symmetry
Space GroupP 63

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298CCDRAYONIX MX170-HS2017-07-03MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1FREE ELECTRON LASERSLAC LCLS BEAMLINE MFX1.305SLAC LCLSMFX

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
12.7556.7199.980.9983.6506.3919964768.4
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)
12.752.790.135

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 REPLACEMENTFREE R-VALUEPDB entry 1JB02.7556.711.33189592190394.960.26410.2640.279277.3
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d18.5285
f_angle_d0.9913
f_chiral_restr0.0507
f_plane_restr0.0078
f_bond_d0.0058
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms17524
Nucleic Acid Atoms
Solvent Atoms119
Heterogen Atoms6869

Software

Software
Software NamePurpose
cctbx.xfeldata reduction
PHENIXrefinement