5BWT

X-RAY CRYSTAL STRUCTURE AT 2.20A RESOLUTION OF HUMAN MITOCHONDRIAL BRANCHED CHAIN AMINOTRANSFERASE (BCATM) COMPLEXED WITH A PYRAZOLOPYRIMIDINONE FRAGMENT AND AN INTERNAL ALDIMINE LINKED PLP.

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
2.39	48.58

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.307	α = 90
b = 106.628	β = 90
c = 108.049	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	CCD	RIGAKU SATURN A200		2010-11-06	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 Merge I (Observed)	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	2.2	40	99.5	0.09	10.6	5.4		41145			33.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.24	100		0.459		5.3	2048

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	2.2	20	39394	1654	99.2	0.1785	0.1755	0.2482	RANDOM	35.549

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]
-1.91			1.51		0.41

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.85
r_dihedral_angle_3_deg	12.9
r_dihedral_angle_4_deg	12.328
r_dihedral_angle_1_deg	4.451
r_mcangle_it	4.115
r_mcbond_it	2.742
r_mcbond_other	2.739
r_angle_refined_deg	1.527
r_angle_other_deg	0.771
r_chiral_restr	0.083

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.85
r_dihedral_angle_3_deg	12.9
r_dihedral_angle_4_deg	12.328
r_dihedral_angle_1_deg	4.451
r_mcangle_it	4.115
r_mcbond_it	2.742
r_mcbond_other	2.739
r_angle_refined_deg	1.527
r_angle_other_deg	0.771
r_chiral_restr	0.083
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	5741
Nucleic Acid Atoms
Solvent Atoms	577
Heterogen Atoms	93

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
DENZO	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.