2AO2

The 2.07 Angstrom crystal structure of Mycobacterium tuberculosis chorismate mutase reveals unexpected gene duplication and suggests a role in host-pathogen interactions

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
3	59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 124.452	α = 90
b = 83.84	β = 93.36
c = 62.671	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray					2004-10-20	M	SINGLE WAVELENGTH
2	1	x-ray					2005-03-15	M	MAD
1,2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	1.0	SPring-8	BL41XU
2	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	0.97955, 0.97975, 0.98090	SPring-8	BL41XU

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	2.07	69.5					36542

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.07	47.3	36540	1843	93.35	0.18	0.18	0.178	0.224	RANDOM	39.096

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]
-0.02		0.08	0.1		-0.07

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.297
r_dihedral_angle_4_deg	16.106
r_dihedral_angle_3_deg	14.136
r_scangle_it	7.037
r_dihedral_angle_1_deg	5.536
r_scbond_it	5.069
r_mcangle_it	2.1
r_mcbond_it	1.613
r_angle_refined_deg	1.466
r_angle_other_deg	0.865
r_mcbond_other	0.354
r_symmetry_vdw_other	0.229
r_nbd_refined	0.222
r_symmetry_hbond_refined	0.211
r_nbtor_refined	0.179
r_nbd_other	0.175
r_xyhbond_nbd_refined	0.161
r_symmetry_vdw_refined	0.151
r_chiral_restr	0.091
r_nbtor_other	0.09
r_xyhbond_nbd_other	0.077
r_bond_refined_d	0.017
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	3879
Nucleic Acid Atoms
Solvent Atoms	218
Heterogen Atoms	55

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction