4I95

Crystal structure of a Lipocalin-like protein (BACEGG_00036) from Bacteroides eggerthii DSM 20697 at 1.81 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	277	1.0000M lithium chloride, 20.0000% polyethylene glycol 6000, 0.1M MES pH 6.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.69	54.32

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 103.067	α = 90
b = 103.067	β = 90
c = 114.975	γ = 120

Symmetry
Space Group	P 63 2 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	Rhodium-coated vertical and horizontal focusing mirrors; liquid-nitrogen cooled double crystal Si(111) monochromator	2012-07-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL12-2		SSRL	BL12-2

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	1.81	48.331	100	0.193	15.74			33477		-3	21.921

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	1.81	1.87	100		0.016	2.9

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	SAD	THROUGHOUT	1.81	48.331	33450	1693	99.98	0.1753	0.1738	0.2039	RANDOM	26.9803

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]
-0.35	-0.35		-0.35		1.12

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.823
r_dihedral_angle_4_deg	16.387
r_dihedral_angle_3_deg	11.616
r_dihedral_angle_1_deg	5.266
r_mcangle_it	3.637
r_mcbond_other	2.64
r_mcbond_it	2.639
r_angle_refined_deg	1.765
r_angle_other_deg	1.044
r_chiral_restr	0.112

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.823
r_dihedral_angle_4_deg	16.387
r_dihedral_angle_3_deg	11.616
r_dihedral_angle_1_deg	5.266
r_mcangle_it	3.637
r_mcbond_other	2.64
r_mcbond_it	2.639
r_angle_refined_deg	1.765
r_angle_other_deg	1.044
r_chiral_restr	0.112
r_bond_refined_d	0.016
r_gen_planes_refined	0.01
r_bond_other_d	0.005
r_gen_planes_other	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2208
Nucleic Acid Atoms
Solvent Atoms	293
Heterogen Atoms	16

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 R01GM133198.