4ACF

CRYSTAL STRUCTURE OF MYCOBACTERIUM TUBERCULOSIS GLUTAMINE SYNTHETASE IN COMPLEX WITH IMIDAZOPYRIDINE INHIBITOR ((4-(6-BROMO-3-(BUTYLAMINO)IMIDAZO(1,2-A)PYRIDIN-2-YL)PHENOXY) ACETIC ACID) AND L-METHIONINE-S-SULFOXIMINE PHOSPHATE.

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2BVC	PDB ENTRY 2BVC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	294	EQUAL VOLUMES OF MOTHER LIQUOR (0.1 M TRIS-HCL, PH 7.5, 0.2 M MAGNESIUM CHLORIDE, 39% (V/V) PEG 400) AND PROTEIN SOLUTION (13 G/L IN 0.1 M TRIS-HCL, PH 7.5, 0.125 M SODIUM CHLORIDE, 0.004 M MAGNESIUM CHLORIDE, 4%(V/V) DMSO, 0.001 M INHIBITOR, 0.004 M MSOP), HANGING-DROP, VAPOR DIFFUSION, TEMPERATURE 294K.

Crystal Properties
Matthews coefficient	Solvent content
2.33	47.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 132.59	α = 90
b = 227.39	β = 90
c = 202.35	γ = 90

Symmetry
Space Group	C 2 2 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	ADSC CCD		2008-09-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1		ESRF	ID23-1

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	20	99.1	0.08	15.5	4		192509

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	2.1	96.4		0.39	4.7	3.4

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	FOURIER SYNTHESIS	THROUGHOUT	PDB ENTRY 2BVC	2	20	192509	10190	99.14	0.16695	0.16533	0.19771	RANDOM	17.118

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]
-0.01			-1.32		1.33

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.756
r_dihedral_angle_4_deg	16.054
r_dihedral_angle_3_deg	12.94
r_dihedral_angle_1_deg	6.277
r_angle_other_deg	4.118
r_scangle_it	3.077
r_scbond_it	1.963
r_angle_refined_deg	1.43
r_mcangle_it	1.195
r_mcbond_it	0.667
r_chiral_restr	0.088
r_bond_refined_d	0.014
r_gen_planes_other	0.009
r_gen_planes_refined	0.007
r_bond_other_d
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	22572
Nucleic Acid Atoms
Solvent Atoms	1926
Heterogen Atoms	306

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
REFMAC	phasing