2ABJ

Crystal structure of human branched chain amino acid transaminase in a complex with an inhibitor, C16H10N2O4F3SCl, and pyridoxal 5' phosphate.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	278	PEG4K, Ammonium Acetate, Sodium Citrate, TCEP, EDTA, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 278K

Crystal Properties
Matthews coefficient	Solvent content
2.9	56.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 110.327	α = 90
b = 114.517	β = 90
c = 148.869	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	MARRESEARCH		2002-09-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 17-ID	1.000	APS	17-ID

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	90.91	98.1	0.059			94429	94429

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	2.28	88.6	88.6	0.214

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.2	90.91	94429	94358	4719	98.12	0.208	0.205	0.205	0.257	RANDOM	20.798

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]
-0.4			2.54		-2.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.989
r_dihedral_angle_4_deg	19.215
r_dihedral_angle_3_deg	16.453
r_dihedral_angle_1_deg	5.881
r_scangle_it	2.139
r_scbond_it	1.439
r_angle_refined_deg	1.339
r_mcangle_it	0.84
r_mcbond_it	0.739
r_nbtor_refined	0.302

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.989
r_dihedral_angle_4_deg	19.215
r_dihedral_angle_3_deg	16.453
r_dihedral_angle_1_deg	5.881
r_scangle_it	2.139
r_scbond_it	1.439
r_angle_refined_deg	1.339
r_mcangle_it	0.84
r_mcbond_it	0.739
r_nbtor_refined	0.302
r_nbd_refined	0.193
r_symmetry_vdw_refined	0.146
r_xyhbond_nbd_refined	0.124
r_symmetry_hbond_refined	0.094
r_chiral_restr	0.083
r_bond_refined_d	0.008
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11456
Nucleic Acid Atoms
Solvent Atoms	1413
Heterogen Atoms	168

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
AMoRE	phasing

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.