3QTA

Crystal structure of a CheC-like protein (rrnAC0528) from Haloarcula marismortui ATCC 43049 at 2.00 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	277	0.16M Ca(OAc)2, 20.0% Glycerol, 14.4% PEG-8000, 0.1M Cacodylate pH 6.5, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.95	58.24

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 89.928	α = 90
b = 89.928	β = 90
c = 148.299	γ = 90

Symmetry
Space Group	P 41 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 mirror (vertical focusing); single crystal Si(111) bent monochromator (ho rizontal focusing)	2011-01-27	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.91837,0.97958,0.97885	SSRL	BL11-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	29.976	100	0.183	8.9	7.3	41896	41896

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)
1	2	2.05	100		0.011	1.12	2	7.4	3039

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	29.976	41820	2110	100	0.1762	0.1748	0.2023	RANDOM	30.8695

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]
0.32			0.32		-0.64

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.846
r_dihedral_angle_4_deg	15.599
r_dihedral_angle_3_deg	13.052
r_dihedral_angle_1_deg	5.693
r_scangle_it	4.256
r_scbond_it	2.586
r_mcangle_it	1.582
r_angle_refined_deg	1.488
r_angle_other_deg	0.916
r_mcbond_it	0.852

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.846
r_dihedral_angle_4_deg	15.599
r_dihedral_angle_3_deg	13.052
r_dihedral_angle_1_deg	5.693
r_scangle_it	4.256
r_scbond_it	2.586
r_mcangle_it	1.582
r_angle_refined_deg	1.488
r_angle_other_deg	0.916
r_mcbond_it	0.852
r_mcbond_other	0.214
r_chiral_restr	0.089
r_bond_refined_d	0.016
r_gen_planes_refined	0.006
r_bond_other_d	0.004
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3061
Nucleic Acid Atoms
Solvent Atoms	324
Heterogen Atoms	27

Software

Software
Software Name	Purpose
MolProbity	model building
PDB_EXTRACT	data extraction
SOLVE	phasing
SCALA	data scaling
MOSFLM	data reduction
REFMAC	refinement

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.