6O0B

Structural and Mechanistic Insights into CO2 Activation by Nitrogenase Iron Protein


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1G1M 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1LIQUID DIFFUSION8295PEG 4000, sodium chloride, Tris, Glycerol
Crystal Properties
Matthews coefficientSolvent content
2.5852.39

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 57.071α = 90
b = 93.045β = 98.875
c = 60.796γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M2016-11-27MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL9-20.97557SSRLBL9-2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)Rpim I (All)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
11.638.2798.140.0460.9958681373
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.61.69981.3210.4526.1

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-VALUE1G1M1.638.271.3381050198898.140.20650.20620.218533.48
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_d8.454
f_angle_d0.8039
f_chiral_restr0.0631
f_bond_d0.0072
f_plane_restr0.0053
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4128
Nucleic Acid Atoms
Solvent Atoms252
Heterogen Atoms8

Software

Software
Software NamePurpose
XDSdata reduction
SCALAdata scaling
PHASERphasing
PHENIXrefinement