1O66

Crystal structure of 3-methyl-2-oxobutanoate hydroxymethyltransferase


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1hanging drop vapor diffusion7.5294
Crystal Properties
Matthews coefficientSolvent content
2.5752.16

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 165.19α = 90
b = 111.492β = 122.65
c = 99.079γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-rayCCDMARRESEARCHSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 32-ID0.9795APS32-ID

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
11.6743.44960.08711.16.8176101176101
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)
11.641.73960.6512.14.3

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONSe-Met SAD phasing1.7543.44151510151300.2310.2518.772
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]
-0.635-0.5210.695-0.622
RMS Deviations
KeyRefinement Restraint Deviation
p_scangle_it2.428
p_scbond_it1.68
p_mcangle_it1.41
p_angle_d1.339
p_planar_tor1.214
p_mcbond_it0.755
p_chiral_restr0.095
p_plane_restr0.006
p_bond_d0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms8888
Nucleic Acid Atoms
Solvent Atoms570
Heterogen Atoms30

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
CCP4data scaling
TRUNCATEdata scaling