3FIG

Crystal Structure of Leucine-bound LeuA from Mycobacterium tuberculosis

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1SR9

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	291	Sodium Citrate, MPEG 2000, pH 6.0, Vapor diffusion, sitting drop, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.03	39.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.207	α = 90
b = 154.258	β = 97.99
c = 68.669	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	113	IMAGE PLATE	MAR scanner 345 mm plate			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R	1.5418

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	30					49393

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	1SR9	2.3	27.66	49360	2509	99.78	0.17	0.166	0.244	RANDOM	27.572

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]
0.46		0.77	-0.7		0.45

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.374
r_dihedral_angle_4_deg	17.988
r_dihedral_angle_3_deg	16.199
r_dihedral_angle_1_deg	7.293
r_scangle_it	4.532
r_scbond_it	3.084
r_angle_refined_deg	2.029
r_mcangle_it	1.799
r_mcbond_it	1.113
r_nbtor_refined	0.307
r_symmetry_vdw_refined	0.269
r_symmetry_hbond_refined	0.248
r_nbd_refined	0.213
r_xyhbond_nbd_refined	0.154
r_chiral_restr	0.138
r_bond_refined_d	0.024
r_gen_planes_refined	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8728
Nucleic Acid Atoms
Solvent Atoms	366
Heterogen Atoms	31

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction