Experiment: 3DPJ

The crystal structure of a TetR transcription regulator from Silicibacter pomeroyi DSS

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5	289	0.2M Sodium Citrate, 0.1M Tris 15% PEG 400, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 289K, pH 8.50

Crystal Properties
Matthews coefficient	Solvent content
2.7	54.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 60.523	α = 89.35
b = 93.072	β = 71.02
c = 93.397	γ = 71.04

Symmetry
Space Group	P 1

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	MIRROR	2007-12-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID		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	1.9	42	96.9	0.069	20.3	2.4		138074

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)
	1.9	1.93	86.9		0.427	1.77	2.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	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)	Mean Isotropic B
X-RAY DIFFRACTION	SAD	1.9	41.61	266959	14106	93.4	0.196	0.193	0.1771	0.243	0.1987	50.08

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]
6.548	0.162	0.142	-5.977	-6.689	-8.585

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	19.659
f_angle_d	1.09
f_chiral_restr	0.067
f_bond_d	0.008
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11958
Nucleic Acid Atoms
Solvent Atoms	804
Heterogen Atoms	216

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
SHELXD	phasing
MLPHARE	phasing
DM	phasing
RESOLVE	phasing
HKL-3000	phasing