3C2B | pdb_00003c2b

Crystal structure of TetR transcriptional regulator from Agrobacterium tumefaciens

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	10.5	294	0.1 M CAPSO buffer, 20% PEG 2000 MME, 0.3 M NDSB-195, pH 10.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.1	41.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 44.134	α = 90
b = 72.791	β = 90
c = 127.198	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	CCD	ADSC QUANTUM 315		2006-02-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97920	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	2.1	37.8	93.6	0.081	10.5	8	23127	23127			49.9

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	2.1	2.15	60.4		0.58	1.86	3.6	1024

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 (All)	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	SAD	THROUGHOUT	2.1	37.8	23079	23079	1190	93.48	0.2006	0.2006	0.1984	0.1967	0.2406	0.2407	RANDOM	54.9

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]
2.13			-1.29		-0.84

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.835
r_dihedral_angle_4_deg	20.781
r_dihedral_angle_3_deg	18.776
r_dihedral_angle_1_deg	5.602
r_scangle_it	3.36
r_scbond_it	2.189
r_angle_refined_deg	1.486
r_mcangle_it	1.44
r_mcbond_it	0.915
r_nbtor_refined	0.302
r_symmetry_vdw_refined	0.214
r_nbd_refined	0.212
r_symmetry_hbond_refined	0.188
r_xyhbond_nbd_refined	0.172
r_chiral_restr	0.107
r_bond_refined_d	0.016
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3058
Nucleic Acid Atoms
Solvent Atoms	92
Heterogen Atoms	6

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
CNS	phasing
ARP/wARP	model building