3R4T

Crystal structure of 4-aminobutyrate aminotransferase GabT from Mycobacterium marinum covalently bound to pyridoxal phosphate

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3OKS

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	289	MymaA.01026.b.A1 PW29968 at 27.8 mg/mL against JCSG+ screen condition D5, 70% MPD, 0.1 M Hepes pH 7.5, crystal tracking ID 220563d5, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
3.49	64.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 123.62	α = 90
b = 123.62	β = 90
c = 157.59	γ = 120

Symmetry
Space Group	P 62 2 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	CCD	ADSC QUANTUM 315r		2011-03-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.1	0.97946	ALS	5.0.1

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	2.5	50	100	0.118	15.33	8.9	26253	25245		-3	37.813

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	2.5	2.57	100		0.559	3.74	9.1	1834

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	3oks	2.5	50	25110	1281	99.46	0.1533	0.1513	0.191	RANDOM	28.8302

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]
0.94	0.47		0.94		-1.42

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.899
r_dihedral_angle_3_deg	14.095
r_dihedral_angle_4_deg	12.841
r_dihedral_angle_1_deg	6.106
r_scangle_it	3.874
r_scbond_it	2.267
r_angle_refined_deg	1.453
r_mcangle_it	1.107
r_mcbond_it	0.541
r_chiral_restr	0.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.899
r_dihedral_angle_3_deg	14.095
r_dihedral_angle_4_deg	12.841
r_dihedral_angle_1_deg	6.106
r_scangle_it	3.874
r_scbond_it	2.267
r_angle_refined_deg	1.453
r_mcangle_it	1.107
r_mcbond_it	0.541
r_chiral_restr	0.09
r_bond_refined_d	0.014
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3293
Nucleic Acid Atoms
Solvent Atoms	206
Heterogen Atoms	13

Software

Software
Software Name	Purpose
XSCALE	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
BOS	data collection
XDS	data reduction

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.