4TSK

Ketol-acid reductoisomerase from Alicyclobacillus acidocaldarius


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4KQW 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP82951M sodium potassium tartrate, 200mM sodium chloride, 100mM imidazole pH 8
Crystal Properties
Matthews coefficientSolvent content
4.3571.7

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 124.099α = 90
b = 124.099β = 90
c = 124.099γ = 90
Symmetry
Space GroupP 2 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M2012-04-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL12-20.9795SSRLBL12-2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym I (Observed)Rrim I (All)Rpim I (All)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
12.07124.197.70.0870.1030.0538.93.43823938239
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Rpim I (All)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.072.1889.10.9360.9360.6180.82.95024

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 REPLACEMENTTHROUGHOUT4KQW2.5124.122066110898.830.15560.15420.1822RANDOM40.548
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
r_mcangle_it4.181
r_mcbond_it3.125
r_mcbond_other3.119
r_angle_refined_deg1.998
r_angle_other_deg0.914
r_chiral_restr0.1
r_bond_refined_d0.018
r_gen_planes_refined0.009
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2585
Nucleic Acid Atoms
Solvent Atoms46
Heterogen Atoms61

Software

Software
Software NamePurpose
REFMACrefinement
SCALAdata scaling
PDB_EXTRACTdata extraction