4IWH

Crystal structure of a 3-isopropylmalate dehydrogenase from Burkholderia pseudomallei


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1A05PDB ENTRY 1A05

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP8.5289ButhA.00092.a.B1 PS01671 at 23.6 mg/mL against MCSG1 screen condition d3, 0.2 M MgCl2, 0.1 M TrisHCl pH 8.5, 30% PEG 400, crystal tracking ID 240482d3, unique puck ID quk9-15, VAPOR DIFFUSION, SITTING DROP, temperature 289K
Crystal Properties
Matthews coefficientSolvent content
2.5752.19

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 141.6α = 90
b = 60.1β = 112.86
c = 103.19γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-rayCCDADSC QUANTUM 315r2013-01-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL7-11.283574SSRLBL7-1

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
11.755098.80.03724.1979884-329.078
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)
11.751.895.80.264.64

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1A051.7519.6379883401498.870.16930.16760.201RANDOM23.4711
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]
0.92-0.360.18-0.7
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.413
r_dihedral_angle_4_deg16.973
r_dihedral_angle_3_deg12.157
r_dihedral_angle_1_deg5.656
r_mcangle_it1.551
r_angle_refined_deg1.408
r_mcbond_it1.023
r_mcbond_other1.02
r_angle_other_deg0.807
r_chiral_restr0.085
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.413
r_dihedral_angle_4_deg16.973
r_dihedral_angle_3_deg12.157
r_dihedral_angle_1_deg5.656
r_mcangle_it1.551
r_angle_refined_deg1.408
r_mcbond_it1.023
r_mcbond_other1.02
r_angle_other_deg0.807
r_chiral_restr0.085
r_bond_refined_d0.011
r_gen_planes_refined0.007
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5339
Nucleic Acid Atoms
Solvent Atoms799
Heterogen Atoms2

Software

Software
Software NamePurpose
XSCALEdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction