1KT8

HUMAN BRANCHED CHAIN AMINO ACID AMINOTRANSFERASE (MITOCHONDRIAL): THREE DIMENSIONAL STRUCTURE OF ENZYME IN ITS KETIMINE FORM WITH THE SUBSTRATE L-ISOLEUCINE


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
17PEG1500, HEPES, DTT, pH 7.0
Crystal Properties
Matthews coefficientSolvent content
2.3848.25

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 69.475α = 90
b = 105.457β = 90
c = 107.429γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray223CCD1999-04-20MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.2ALS5.0.2

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
11.919.7295.60.0695.44.7618936010021.3
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)
11.91.93410.664.7

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1.919.72260100302895.60.2430.284RANDOM37.2
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]
-7.19-1.929.1
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d24.6
c_scangle_it2.33
c_angle_deg2.2
c_mcangle_it1.97
c_scbond_it1.66
c_improper_angle_d1.61
c_mcbond_it1.24
c_bond_d0.019
c_bond_d_na
c_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d24.6
c_scangle_it2.33
c_angle_deg2.2
c_mcangle_it1.97
c_scbond_it1.66
c_improper_angle_d1.61
c_mcbond_it1.24
c_bond_d0.019
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 Atoms5788
Nucleic Acid Atoms
Solvent Atoms221
Heterogen Atoms78

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement