1O13

Crystal structure of a putative dinitrogenase iron-molybdenum cofactor (tm1816) from thermotoga maritima at 1.83 A resolution


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
14.22930.1M phosphate-citrate 40%(v/v) PEG-600, pH 4.2, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K, pH 4.20
Crystal Properties
Matthew coefficientSolvent content
2.243.55

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 32.57α = 90
b = 39.84β = 90
c = 85.77γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152002-07-05MMAD
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL9-20.97903, 0.91837, 0.97874SSRLBL9-2

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
11.8342.8711000.08922.314.91039324.76
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)
1.831.881000.9452.37.4

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 DIFFRACTIONMADTHROUGHOUT1.8342.87103511035149899.90.2070.2070.241RANDOM26.9
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]
-6.928-2.3839.312
RMS Deviations
KeyRefinement Restraint Deviation
c_scangle_it2.914
c_mcangle_it2.102
c_scbond_it2.055
c_angle_deg1.56
c_mcbond_it1.454
c_bond_d0.01
c_improper_angle_d
c_angle_d_prot
c_angle_deg_prot
c_bond_d_na
RMS Deviations
KeyRefinement Restraint Deviation
c_scangle_it2.914
c_mcangle_it2.102
c_scbond_it2.055
c_angle_deg1.56
c_mcbond_it1.454
c_bond_d0.01
c_improper_angle_d
c_angle_d_prot
c_angle_deg_prot
c_bond_d_na
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_angle_deg_na
c_improper_angle_d_na
c_improper_angle_d_prot
c_angle_d_na
c_angle_d
c_bond_d_prot
c_dihedral_angle_d
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms808
Nucleic Acid Atoms
Solvent Atoms96
Heterogen Atoms

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
RESOLVEmodel building
SOLVEphasing
CNSrefinement
CCP4data scaling
RESOLVEphasing