3ETN

Crystal structure of putative phosphosugar isomerase involved in capsule formation (YP_209877.1) from Bacteroides fragilis NCTC 9343 at 1.70 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	277	5.0% PEG-6000, 0.1M MES pH 6.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.04	39.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 60.409	α = 90
b = 114.267	β = 90
c = 115.917	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	CCD	MARMOSAIC 325 mm CCD	Flat mirror (vertical focusing)	2008-08-01	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.91837,0.97910,0.97849	SSRL	BL11-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.7	29.223	99.8	0.103	0.103	5.554	4.5		88793			19.097

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	1.7	1.74	100		0.819	0.819	0.9	4.5	6471

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	1.7	29.223	88524	4437	99.56	0.173	0.172	0.197	RANDOM	18.583

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]
-1.15			-0.22		1.37

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.345
r_dihedral_angle_4_deg	16.063
r_dihedral_angle_3_deg	12.78
r_scangle_it	6.256
r_dihedral_angle_1_deg	5.034
r_scbond_it	3.889
r_mcangle_it	2.044
r_angle_refined_deg	1.446
r_mcbond_it	1.114
r_angle_other_deg	0.977

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.345
r_dihedral_angle_4_deg	16.063
r_dihedral_angle_3_deg	12.78
r_scangle_it	6.256
r_dihedral_angle_1_deg	5.034
r_scbond_it	3.889
r_mcangle_it	2.044
r_angle_refined_deg	1.446
r_mcbond_it	1.114
r_angle_other_deg	0.977
r_mcbond_other	0.255
r_chiral_restr	0.088
r_bond_refined_d	0.014
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5871
Nucleic Acid Atoms
Solvent Atoms	725
Heterogen Atoms	180

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
SHELXD	phasing
autoSHARP	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.