3FR7

ketol-acid reductoisomerase (KARI) in complex with Mg2+


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8.52910.2M magnesium chloride hexahydrate, 0.1M Tris-HCl pH 8.5 and 15% (w/v) polyethylene glycol 4000, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties
Matthews coefficientSolvent content
2.2946.2

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 126.032α = 90
b = 92.901β = 100.58
c = 91.187γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATERIGAKU RAXIS IVOsmic Mirrors2000-12-01MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.54

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
11.5540.498.70.0350.0352.85143459143459
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.551.61690.3050.3052.2210300

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB entry 1YVE1.5537.161434591362497206960.203070.201660.23017RANDOM21.813
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]
0.10.02-0.09
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.693
r_dihedral_angle_4_deg17.457
r_dihedral_angle_3_deg13.291
r_dihedral_angle_1_deg4.867
r_scangle_it2.741
r_scbond_it1.85
r_angle_refined_deg1.282
r_mcangle_it1.09
r_mcbond_it0.734
r_nbtor_refined0.308
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.693
r_dihedral_angle_4_deg17.457
r_dihedral_angle_3_deg13.291
r_dihedral_angle_1_deg4.867
r_scangle_it2.741
r_scbond_it1.85
r_angle_refined_deg1.282
r_mcangle_it1.09
r_mcbond_it0.734
r_nbtor_refined0.308
r_nbd_refined0.212
r_symmetry_hbond_refined0.158
r_symmetry_vdw_refined0.154
r_xyhbond_nbd_refined0.122
r_chiral_restr0.095
r_metal_ion_refined0.095
r_bond_refined_d0.012
r_gen_planes_refined0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms7588
Nucleic Acid Atoms
Solvent Atoms840
Heterogen Atoms5

Software

Software
Software NamePurpose
CrystalCleardata collection
EPMRphasing
REFMACrefinement
CrystalCleardata reduction
SCALEPACKdata scaling