2QWT | pdb_00002qwt

Crystal structure of the TetR transcription regulatory protein from Mycobacterium vanbaalenii

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7	294	400mM Potassium sodium tartrate, pH 7.0, VAPOR DIFFUSION, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
1.94	36.45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.561	α = 90
b = 57.561	β = 90
c = 98.32	γ = 90

Symmetry
Space Group	P 43 21 2

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		2007-06-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.97958	APS	31-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	2.3	49.69	99.6	0.099	0.099	37.8	26.8	7823	7823			51.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.3	2.42	100		0.46	0.46	6.6	27.8	1108

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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		THROUGHOUT	2.3	20	7769	7769	357	99.48	0.256	0.255	0.26	0.279	0.27	RANDOM	61.699

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]
-0.31			-0.31		0.63

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.983
r_dihedral_angle_4_deg	23.997
r_dihedral_angle_3_deg	21.407
r_dihedral_angle_1_deg	6.031
r_scangle_it	4.946
r_scbond_it	3.058
r_mcangle_it	1.721
r_angle_refined_deg	1.679
r_mcbond_it	1.06
r_nbtor_refined	0.305
r_nbd_refined	0.226
r_symmetry_hbond_refined	0.222
r_symmetry_vdw_refined	0.203
r_xyhbond_nbd_refined	0.2
r_chiral_restr	0.118
r_bond_refined_d	0.018
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1243
Nucleic Acid Atoms
Solvent Atoms	5
Heterogen Atoms

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345	data collection
MOSFLM	data reduction
SHELXCD	phasing
SHELXE	model building