5TCG

Crystal structure of tryptophan synthase from M. tuberculosis - aminoacrylate-bound form

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	289	8% tacsimate pH 8.0, 20% PEG3350, 3% trimethylamine N-oxide dihydrate, soaked in 80 mM CsCl, 30 mM L-Ser and 17% ethylene glycol

Crystal Properties
Matthews coefficient	Solvent content
3.09	60.26

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 135.183	α = 90
b = 159.433	β = 90
c = 165.23	γ = 90

Symmetry
Space Group	P 21 21 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	PIXEL	DECTRIS PILATUS3 6M	mirrors	2016-03-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97926	APS	19-ID

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	2.4	30	99.6	0.178	11.78	8.9		139260		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.4	2.44	98.3		0.82	0.632	1.81	6

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		THROUGHOUT	2.4	30	136438	2708	99.52	0.1724	0.17174	0.20614	RANDOM	32.517

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]
0.26			-0.09		-0.17

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.16
r_dihedral_angle_4_deg	17.275
r_dihedral_angle_3_deg	12.819
r_dihedral_angle_1_deg	6.007
r_long_range_B_refined	4.446
r_long_range_B_other	4.446
r_angle_refined_deg	1.44
r_scangle_other	0.996
r_angle_other_deg	0.971
r_mcangle_it	0.928
r_mcangle_other	0.928
r_scbond_it	0.584
r_scbond_other	0.567
r_mcbond_it	0.51
r_mcbond_other	0.51
r_chiral_restr	0.076
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001
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_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	19064
Nucleic Acid Atoms
Solvent Atoms	890
Heterogen Atoms	196

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling