7NEA

Crystal structure of branched-chain amino acid aminotransferase from Thermobaculum terrenum (M3 mutant).

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6GKR

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	LIQUID DIFFUSION		293	HEPES 0.1M pH 7.5; Sodium chloride 3.4M

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 146.497	α = 90
b = 146.497	β = 90
c = 143.776	γ = 120

Symmetry
Space Group	H 3 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS3 S 6M		2019-10-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	1.00	SPring-8	BL41XU

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	1.75	95.13	98.6	0.045	0.055	0.03	0.999	11.3	2.8		58749

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.75	1.78	98.2		0.897	1.102	0.623	0.401		2.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	6GKR	2	95.13	37506	1991	98.51	0.1634	0.1614	0.2007	RANDOM	31.195

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]
0.13	0.06		0.13		-0.41

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	27.395
r_dihedral_angle_4_deg	21.774
r_dihedral_angle_3_deg	15.15
r_dihedral_angle_1_deg	7.627
r_angle_refined_deg	2.031
r_angle_other_deg	1.533
r_chiral_restr	0.113
r_bond_refined_d	0.017
r_gen_planes_refined	0.013
r_gen_planes_other	0.002

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	27.395
r_dihedral_angle_4_deg	21.774
r_dihedral_angle_3_deg	15.15
r_dihedral_angle_1_deg	7.627
r_angle_refined_deg	2.031
r_angle_other_deg	1.533
r_chiral_restr	0.113
r_bond_refined_d	0.017
r_gen_planes_refined	0.013
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2481
Nucleic Acid Atoms
Solvent Atoms	267
Heterogen Atoms	27

Software

Software
Software Name	Purpose
HKL-2000	data reduction
Aimless	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction

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.