4KQT

Crystal structure of a putative outer membrane chaperone (OmpH-like) (CC_1914) from Caulobacter crescentus CB15 at 2.83 A resolution (PSI Community Target, Shapiro)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.2	293	0.20M sodium chloride, 40.00% polyethylene glycol 400, 0.1M Na/K phosphate pH 6.2, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
4.41	72.13

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 109.849	α = 90
b = 109.849	β = 90
c = 163.704	γ = 120

Symmetry
Space Group	H 3 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	PIXEL	DECTRIS PILATUS 6M	Flat mirror (vertical focusing); single crystal Si(111) bent monochromator (horizontal focusing)	2013-01-23	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.97917,0.91837,0.97862	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	2.83	45.677	99.7	0.074	16.65			9290		-3	90.539

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	2.83	2.93	99.8		0.946	1.9

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	2.83	45.677	8849	441	99.74	0.2101	0.2084	0.2452	RANDOM	85.6935

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]
2.93	2.93		2.93		-9.5

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.66
r_dihedral_angle_4_deg	12.197
r_dihedral_angle_3_deg	12.071
r_mcangle_it	4.161
r_dihedral_angle_1_deg	3.123
r_mcbond_it	2.581
r_mcbond_other	2.507
r_angle_refined_deg	1.019
r_angle_other_deg	0.702
r_chiral_restr	0.052

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.66
r_dihedral_angle_4_deg	12.197
r_dihedral_angle_3_deg	12.071
r_mcangle_it	4.161
r_dihedral_angle_1_deg	3.123
r_mcbond_it	2.581
r_mcbond_other	2.507
r_angle_refined_deg	1.019
r_angle_other_deg	0.702
r_chiral_restr	0.052
r_bond_refined_d	0.007
r_gen_planes_refined	0.004
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1296
Nucleic Acid Atoms
Solvent Atoms	4
Heterogen Atoms	34

Software

Software
Software Name	Purpose
MolProbity	model building
PDB_EXTRACT	data extraction
SHELX	phasing
SHARP	phasing
XSCALE	data scaling
REFMAC	refinement
XDS	data reduction
SHELXD	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.