6YL2 | pdb_00006yl2

Structural and DNA binding studies of the transcriptional repressor Rv2506 (BkaR) from Mycobacterium tuberculosis supports a role in L-Leucine catabolism

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6YJ2

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	289	0.2 M sodium acetate trihydrate, 0.1 M sodium citrate pH 5.5, 5% (w/v) PEG 4000.

Crystal Properties
Matthews coefficient	Solvent content
3.16	61.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.409	α = 90
b = 66	β = 90
c = 179.732	γ = 90

Symmetry
Space Group	P 2 2 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	CCD	ADSC QUANTUM 315		2017-03-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.97242	ESRF	ID23-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	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	3.15	62.03	98.7	0.038	0.02	0.999	11.7	4.3		12331			74.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.15	3.2	99.5		0.285	0.181	0.982	1.8	4.3

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	6YJ2	3.15	62.03	11698	618	97.52	0.2679	0.2671	0.2668	0.2844	0.2831	RANDOM	147.485

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]
18.8			-2.28		-16.52

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	27.222
r_dihedral_angle_4_deg	21.251
r_dihedral_angle_3_deg	18.068
r_dihedral_angle_1_deg	8.19
r_angle_refined_deg	1.859
r_angle_other_deg	1.479
r_chiral_restr	0.211
r_gen_planes_other	0.028
r_bond_refined_d	0.027
r_gen_planes_refined	0.019
r_bond_other_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2926
Nucleic Acid Atoms	814
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
DIALS	data reduction
Aimless	data scaling
PHASER	phasing