3C8Y

1.39 Angstrom crystal structure of Fe-only hydrogenase


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1capillary diffusion4.629825% PEG 4000, 0.1M Sodium acetate (pH 4.6),0.1M Sodium sulfate, capillary diffusion, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.4850.48

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 110.75α = 90
b = 110.75β = 90
c = 103.54γ = 90
Symmetry
Space GroupP 42 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 41999-08-01MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL9-30.95364SSRLBL9-3

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.3946.993.50.0912.65.11210602.5
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.391.450.572.54.4

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 (All)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONAB INITIOFREE RPDB entry 1FEH1.3910119840113858598293.20.140.1320.194RANDOM19.405
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
s_approx_iso_adps0.084
s_non_zero_chiral_vol0.059
s_similar_adp_cmpnt0.057
s_zero_chiral_vol0.051
s_anti_bump_dis_restr0.034
s_angle_d0.029
s_from_restr_planes0.028
s_bond_d0.011
s_rigid_bond_adp_cmpnt0.003
s_similar_dist
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4461
Nucleic Acid Atoms
Solvent Atoms667
Heterogen Atoms72

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing
SHELXrefinement
PDB_EXTRACTdata extraction
SHELXL-97refinement