4HC8

CRYSTAL STRUCTURE OF PROBABLE ENOYL-CoA HYDRATASE ECHA3 (Rv0632c, NYSGRC-019494) from Mycobacterium Tuberculosis H37Rv

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
other		SAD model built using Buccaneer

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	298	Protein (20 mM Hepes, pH 7.5, 150 mM NaCl, 10% glycerol, Reservoir (Crystal Screen F11: 1.6 M Ammonium sulfate, 0.1 M MES monohydrate pH 6.5, 10% v/v 1,4-Dioxane), Cryoprotection (30% Ethylene glycol), VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.78	55.73

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 154.883	α = 90
b = 154.883	β = 90
c = 154.883	γ = 90

Symmetry
Space Group	I 2 3

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 315	MIRRORS	2012-02-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	0.9792	NSLS	X29A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.51	50	100	0.1	27.07	21.9	21213	21213			62

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.51	2.55	100		0.977	4.7	21	1054

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	SAD	THROUGHOUT	Built using Buccaneer	2.51	41.43	21189	1090	99.94	0.1856	0.1823	0.2486	RANDOM	58.8883

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.114
r_dihedral_angle_4_deg	18.765
r_dihedral_angle_3_deg	15.829
r_dihedral_angle_1_deg	6.476
r_angle_refined_deg	1.575
r_angle_other_deg	0.803
r_chiral_restr	0.08
r_bond_refined_d	0.012
r_gen_planes_refined	0.006
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.114
r_dihedral_angle_4_deg	18.765
r_dihedral_angle_3_deg	15.829
r_dihedral_angle_1_deg	6.476
r_angle_refined_deg	1.575
r_angle_other_deg	0.803
r_chiral_restr	0.08
r_bond_refined_d	0.012
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	3461
Nucleic Acid Atoms
Solvent Atoms	67
Heterogen Atoms	28

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
CBASS	data collection
HKL-3000	data reduction
SCALEPACK	data scaling
SHELX	phasing
SHELXD	phasing
SHELXE	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.