3V7N

Crystal structure of Threonine synthase (thrC) from from Burkholderia thailandensis

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	290	EBS internal tracking number 225991F9: Wizard3/4 F9. 25% PEG 1500, 0.1 M MIB buffer/HCl pH 5.0. ButhA.00545.a.A1 PW33400 at 44.8 mg/mL, vapor diffusion, sitting drop, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
2.34	47.36

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.56	α = 90
b = 90.24	β = 90
c = 98.6	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	MARMOSAIC 300 mm CCD		2011-11-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-B	1.033180	APS	23-ID-B

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	1.4	50	99.3	0.064	14.74	4.84		97539		-3	18.564

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	1.4	1.44	99.7		0.567	2.8	4.78

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	1KL7	1.4	50	97538	4871	99.35	0.161	0.16	0.181	RANDOM	15.198

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]
-0.49			0.14		0.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.786
r_dihedral_angle_4_deg	13.269
r_dihedral_angle_3_deg	11.577
r_dihedral_angle_1_deg	5.671
r_angle_refined_deg	1.767
r_angle_other_deg	0.996
r_chiral_restr	0.105
r_bond_refined_d	0.017
r_gen_planes_refined	0.01
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.786
r_dihedral_angle_4_deg	13.269
r_dihedral_angle_3_deg	11.577
r_dihedral_angle_1_deg	5.671
r_angle_refined_deg	1.767
r_angle_other_deg	0.996
r_chiral_restr	0.105
r_bond_refined_d	0.017
r_gen_planes_refined	0.01
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3546
Nucleic Acid Atoms
Solvent Atoms	479
Heterogen Atoms	35

Software

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

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.