3PJY

Crystal structure of a putative transcription regulator (R01717) from Sinorhizobium meliloti 1021 at 1.55 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.2	277	0.20M (NH4)2SO4, 10.00% Glycerol, 20.00% PEG-300, 0.1M Phosphate Citrate pH 4.2, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.85

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.435	α = 90
b = 63.435	β = 90
c = 153.938	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	MARMOSAIC 325 mm CCD	FLAT COLLIMATING MIRROR, TOROID FOCUSING MIRROR	2010-02-05	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.91162,0.97980,0.97961	SSRL	BL9-2

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	1.55	29.208	96	0.039	13.56	4.797		45713		-3	20.821

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	1.55	1.61	97.2		0.576	1.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	1.55	29.208	45642	2298	98.09	0.1626	0.1611	0.1903	RANDOM	24.0432

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]
0.04			0.04		-0.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.631
r_dihedral_angle_4_deg	12.479
r_dihedral_angle_3_deg	11.586
r_dihedral_angle_1_deg	6.972
r_scangle_it	6.794
r_scbond_it	4.354
r_mcangle_it	2.672
r_mcbond_it	1.676
r_angle_refined_deg	1.6
r_angle_other_deg	0.909

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.631
r_dihedral_angle_4_deg	12.479
r_dihedral_angle_3_deg	11.586
r_dihedral_angle_1_deg	6.972
r_scangle_it	6.794
r_scbond_it	4.354
r_mcangle_it	2.672
r_mcbond_it	1.676
r_angle_refined_deg	1.6
r_angle_other_deg	0.909
r_mcbond_other	0.491
r_chiral_restr	0.096
r_bond_refined_d	0.018
r_gen_planes_refined	0.008
r_gen_planes_other	0.003
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2008
Nucleic Acid Atoms
Solvent Atoms	278
Heterogen Atoms	17

Software

Software
Software Name	Purpose
SHELX	phasing
REFMAC	refinement
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
SHELXD	phasing
autoSHARP	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.