5BWX

X-RAY CRYSTAL STRUCTURE AT 1.70A RESOLUTION OF HUMAN MITOCHONDRIAL BRANCHED CHAIN AMINOTRANSFERASE (BCATM) COMPLEXED WITH A 4-CHLORO-2-FLUORO SUBSTITUTED PYRAZOLOPYRIMIDINONE COMPOUND AND AN INTERNAL ALDIMINE LINKED PLP COFACTOR.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	MDL Morpheus screen condition B2 + 10mM DTT.

Crystal Properties
Matthews coefficient	Solvent content
2.4	48.66

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.46	α = 90
b = 106.68	β = 90
c = 107.92	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MAR scanner 345 mm plate		2011-05-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E+ SUPERBRIGHT	1.5418

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)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.703	37.934	98.4	0.048	0.056	0.021	17.9	6.9	88042	88042			26.3

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)	Redundancy	Number Unique Reflections (All)
1	1.7	1.79	90.5		0.412	0.412	0.188	1.9	6.4	11686

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	1.703	20	83034	4383	98.92	0.1994	0.1973	0.2384	RANDOM	30.606

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]
-1.46			0.79		0.67

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.299
r_dihedral_angle_4_deg	12.111
r_dihedral_angle_3_deg	11.249
r_dihedral_angle_1_deg	4.538
r_mcangle_it	3.204
r_mcbond_it	2.186
r_mcbond_other	2.185
r_angle_refined_deg	1.415
r_angle_other_deg	0.744
r_chiral_restr	0.081

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.299
r_dihedral_angle_4_deg	12.111
r_dihedral_angle_3_deg	11.249
r_dihedral_angle_1_deg	4.538
r_mcangle_it	3.204
r_mcbond_it	2.186
r_mcbond_other	2.185
r_angle_refined_deg	1.415
r_angle_other_deg	0.744
r_chiral_restr	0.081
r_bond_refined_d	0.009
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5701
Nucleic Acid Atoms
Solvent Atoms	919
Heterogen Atoms	168

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MOSFLM	data reduction
Coot	model building

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.