4OV4

Isopropylmalate synthase binding with ketoisovalerate


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION8.52980.1M Tris-HCl, pH 8.5, 0.8mM sodium formate, 30% pEG 2000 MME, vapor diffusion, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.4750.11

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 129.937α = 90
b = 129.937β = 90
c = 46.693γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCD2010-12-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONPHOTON FACTORY BEAMLINE AR-NW12A1.0000Photon FactoryAR-NW12A

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
125099.90.06313.410.530887
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)
122.071000.4729.93046

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONSADTHROUGHOUT25030734155599.690.16150.15910.2094RANDOM39.477
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]
-0.45-0.23-0.450.68
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg42.028
r_sphericity_free21.576
r_dihedral_angle_4_deg18.435
r_dihedral_angle_3_deg14.859
r_sphericity_bonded10.236
r_rigid_bond_restr5.677
r_dihedral_angle_1_deg5.185
r_angle_refined_deg1.068
r_chiral_restr0.078
r_bond_refined_d0.007
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg42.028
r_sphericity_free21.576
r_dihedral_angle_4_deg18.435
r_dihedral_angle_3_deg14.859
r_sphericity_bonded10.236
r_rigid_bond_restr5.677
r_dihedral_angle_1_deg5.185
r_angle_refined_deg1.068
r_chiral_restr0.078
r_bond_refined_d0.007
r_gen_planes_refined0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2932
Nucleic Acid Atoms
Solvent Atoms266
Heterogen Atoms9

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
SOLVEphasing