3NUZ

Crystal structure of a putative acetyl xylan esterase (BF1801) from Bacteroides fragilis NCTC 9343 at 2.30 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4	277	40.0000% MPD, 0.1M Citrate pH 4.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.66	53.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 125.612	α = 90
b = 125.612	β = 90
c = 162.639	γ = 120

Symmetry
Space Group	P 32

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 collimating mirror, toroid focusing mirror	2009-05-14	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.91837,0.97934,0.97920	SSRL	BL9-2

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	2.3	29.665	81.6	0.09	8			126358		-3	36.371

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	2.3	2.38	74.4		0.495	1.4

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	2.3	29.665	126305	6616	99.23	0.153	0.152	0.182	THIN SHELLS	33.793

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]
10.11			10.11		-20.22

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	27.571
r_dihedral_angle_3_deg	10.966
r_dihedral_angle_4_deg	9.547
r_scangle_it	3.395
r_dihedral_angle_1_deg	3.084
r_scbond_it	2.628
r_angle_refined_deg	1.44
r_mcangle_it	1.307
r_angle_other_deg	0.97
r_mcbond_it	0.791

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	27.571
r_dihedral_angle_3_deg	10.966
r_dihedral_angle_4_deg	9.547
r_scangle_it	3.395
r_dihedral_angle_1_deg	3.084
r_scbond_it	2.628
r_angle_refined_deg	1.44
r_mcangle_it	1.307
r_angle_other_deg	0.97
r_mcbond_it	0.791
r_mcbond_other	0.334
r_chiral_restr	0.09
r_bond_refined_d	0.009
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	18820
Nucleic Acid Atoms
Solvent Atoms	253
Heterogen Atoms

Software

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

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.