4OBM

Crystal structure of a putative transcription regulator (EUBSIR_01389) from Eubacterium siraeum DSM 15702 at 2.15 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP	6.5	277	40.0000% 2-methyl-2,4-pentanediol, 5.0000% polyethylene glycol 8000, 0.1M sodium cacodylate pH 6.5, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.29	46.35

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.503	α = 90
b = 51.466	β = 90
c = 104.712	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	PIXEL	DECTRIS PILATUS 6M	Flat mirror (vertical focusing); single crystal Si(111) bent monochromator (horizontal focusing)	2013-11-26	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.91837,0.97953,0.9791	SSRL	BL11-1

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	2.15	46.189	97.7	0.1	7.53			14819		-3	32.011

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	2.15	2.23	98		0.51	2.2

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	2.15	46.189	14779	737	97.74	0.2044	0.2022	0.2453	RANDOM	37.7843

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]
17.9617			3.2166		-21.1783

RMS Deviations
Key	Refinement Restraint Deviation
t_omega_torsion	2.97
t_other_torsion	2.8
t_angle_deg	1.07
t_bond_d	0.01
t_dihedral_angle_d
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion

RMS Deviations
Key	Refinement Restraint Deviation
t_omega_torsion	2.97
t_other_torsion	2.8
t_angle_deg	1.07
t_bond_d	0.01
t_dihedral_angle_d
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
t_pseud_angle
t_chiral_improper_torsion
t_sum_occupancies
t_utility_distance
t_utility_angle
t_utility_torsion
t_ideal_dist_contact

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2013
Nucleic Acid Atoms
Solvent Atoms	155
Heterogen Atoms	29

Software

Software
Software Name	Purpose
MolProbity	model building
PDB_EXTRACT	data extraction
SHELX	phasing
SHARP	phasing
XSCALE	data scaling
BUSTER-TNT	refinement
XDS	data reduction
SHELXD	phasing
BUSTER	refinement

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.