2O2E

Mycobacterium tuberculosis tryptophan synthase beta subunit dimer (apoform)

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.4	293	0.1M MES, 0.1 K/Na Tartrate, pH 6.4, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.14	42.41

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 125.984	α = 90
b = 56.461	β = 117
c = 120.545	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	100	CCD	MAR CCD 165 mm	Au-coated planar; toroidal mirrors	2004-01-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MPG/DESY, HAMBURG BEAMLINE BW6	1.05	MPG/DESY, HAMBURG	BW6

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	2.19	99	98.7	0.074	13.5	3.2	39269	38769		2

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	2.19	2.22	81.9		0.582	1.76	2.7

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	2wsy	2.2	19.92	36537	1926	99.61	0.21434	0.21073	0.28072	RANDOM	47.771

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]
-0.22		-0.19	0.22		-0.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.784
r_dihedral_angle_3_deg	20.497
r_dihedral_angle_4_deg	17.756
r_dihedral_angle_1_deg	8.463
r_scangle_it	6.551
r_scbond_it	4.634
r_angle_refined_deg	2.933
r_mcangle_it	2.912
r_mcbond_it	1.943
r_symmetry_vdw_refined	0.418
r_nbtor_refined	0.319
r_symmetry_hbond_refined	0.262
r_nbd_refined	0.252
r_chiral_restr	0.234
r_xyhbond_nbd_refined	0.171
r_bond_refined_d	0.041
r_gen_planes_refined	0.014
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	4738
Nucleic Acid Atoms
Solvent Atoms	34
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing