4IRT

Crystal structure of a putative neuraminidase (BACOVA_03493) from Bacteroides ovatus ATCC 8483 at 1.74 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	293	1.00M lithium chloride, 14.00% polyethylene glycol 6000, 0.1M MES pH 6.5, NANODROP', VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.24	44.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 101.457	α = 90
b = 48.051	β = 90
c = 88.599	γ = 90

Symmetry
Space Group	P 21 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	ADSC QUANTUM 315	KOHZU: Double Crystal Si(111)	2012-10-17	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	0.918401,0.979493,0.979296	ALS	8.2.2

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	1.74	29.533	98.6	0.109	8.4	3.4	44640	44640			15.257

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	1.74	1.79	88.5		0.613	0.613	1.2	2.7	2920

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	1.74	29.533	44331	2241	97.87	0.1703	0.1685	0.2047	RANDOM	16.823

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]
0.65			-0.52		-0.13

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.709
r_dihedral_angle_4_deg	15.844
r_dihedral_angle_3_deg	12.057
r_dihedral_angle_1_deg	7.512
r_mcangle_it	2.156
r_angle_refined_deg	1.449
r_mcbond_it	1.398
r_mcbond_other	1.385
r_angle_other_deg	0.761
r_chiral_restr	0.092

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.709
r_dihedral_angle_4_deg	15.844
r_dihedral_angle_3_deg	12.057
r_dihedral_angle_1_deg	7.512
r_mcangle_it	2.156
r_angle_refined_deg	1.449
r_mcbond_it	1.398
r_mcbond_other	1.385
r_angle_other_deg	0.761
r_chiral_restr	0.092
r_bond_refined_d	0.011
r_gen_planes_refined	0.007
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3253
Nucleic Acid Atoms
Solvent Atoms	410
Heterogen Atoms	27

Software

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

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.