2AQK

Crystal structure of Isoniazid-resistant S94A Enoyl-ACP(CoA) reductase mutant enzyme from Mycobacterium tuberculosis in complex with NADH

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.2	293	0.05M Sodium citrate, 0.05M Hepes, 8-15% 2-Methyl-2-4-pentanediol (MPD), pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.26	62.21

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 96.245	α = 90
b = 96.245	β = 90
c = 138.054	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	104	CCD	MARRESEARCH		2003-09-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	LNLS BEAMLINE D03B-MX1	1.431	LNLS	D03B-MX1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.3	41.676	95.5			18269	15559	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.42	92.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	2.3	40.29	2	15559	839	94.19	0.19136	0.1886	0.24221	RANDOM	27.461

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]
0.04	0.02		0.04		-0.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.512
r_dihedral_angle_4_deg	19.096
r_dihedral_angle_3_deg	18.719
r_dihedral_angle_1_deg	6.939
r_scangle_it	4.57
r_scbond_it	3.019
r_angle_refined_deg	2.136
r_mcangle_it	1.826
r_mcbond_it	1.209
r_nbtor_refined	0.319
r_symmetry_vdw_refined	0.29
r_nbd_refined	0.235
r_symmetry_hbond_refined	0.211
r_chiral_restr	0.164
r_xyhbond_nbd_refined	0.143
r_bond_refined_d	0.022
r_gen_planes_refined	0.009
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1993
Nucleic Acid Atoms
Solvent Atoms	134
Heterogen Atoms	44

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing
REFMAC	refinement
CCP4	data scaling