1GKZ

Branched-chain alpha-ketoacid dehydrogenase kinase (BCK) complxed with ADP


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION7.5293VAPOR DIFFUSION, 20C, EQUAL AMOUNTS OF BCK (20 MG/ML IN 50 MM HEPES, PH 7.5, 1 M SODIUM CHLORIDE, 250 MM POTASSIUM CHLORIDE, 300 MM ARGININE, 20 MM BETA- MERCAPTOETHANOL, 2 MM BENZAMIDINE, 2 MM MG-ATPGAMMAS, 2 MM MAGNESIUM CHLORIDE, 0.5 MM PMSF, 10% (W/V) GLYCEROL) AND RESERVOIR (8%(W/V) PEG-6000, 5% (V/V) ETHYLENE GLYCOL, 1 M NACL, 20 MM BETA-MERCAPTOETHANOL)
Crystal Properties
Matthews coefficientSolvent content
3.464

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 128.917α = 90
b = 128.917β = 90
c = 74.105γ = 90
Symmetry
Space GroupP 42 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDSBC-CAT2001-02-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 19-BMAPS19-BM

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
12.240.7799.50.03241.76.332115-352.1
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)
12.22.2499.90.5652.76

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 REPLACEMENTTHROUGHOUTBRANCHED-CHAIN ALPHA-KETOACID DEHYDROGENASE KINASE (BCK) COMLEXED WITH ATP-GAMMA-S2.240.7730799142795.40.2370.2370.268RANDOM59.5
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]
2.532.53-5.06
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.8
c_scangle_it3.39
c_mcangle_it2.73
c_scbond_it2.3
c_angle_deg1.9
c_mcbond_it1.64
c_improper_angle_d1.29
c_bond_d0.016
c_bond_d_na
c_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.8
c_scangle_it3.39
c_mcangle_it2.73
c_scbond_it2.3
c_angle_deg1.9
c_mcbond_it1.64
c_improper_angle_d1.29
c_bond_d0.016
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2551
Nucleic Acid Atoms
Solvent Atoms125
Heterogen Atoms34

Software

Software
Software NamePurpose
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing