3SR6

Crystal Structure of Reduced Bovine Xanthine Oxidase in Complex with Arsenite

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Sitting Batch	7.2	298	PEG 8000, pH 7.2, Sitting Batch, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.49	50.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 133.046	α = 90
b = 73.236	β = 96.8
c = 138.023	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		CCD	RAYONIX MX225HE		2010-01-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.9793	APS	31-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.1	22.1	95.8			154300	147820

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	MOLECULAR REPLACEMENT	THROUGHOUT	2.1	22.1	154300	147820	7451	95.81	0.2272	0.2249	0.2719	RANDOM	25.5581

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]
-2.84		-0.02	0.35		2.49

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.34
r_dihedral_angle_4_deg	18.613
r_dihedral_angle_3_deg	16.815
r_dihedral_angle_1_deg	6.606
r_scangle_it	2.951
r_scbond_it	1.837
r_angle_refined_deg	1.509
r_mcangle_it	1.165
r_mcbond_it	0.725
r_symmetry_vdw_refined	0.355

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.34
r_dihedral_angle_4_deg	18.613
r_dihedral_angle_3_deg	16.815
r_dihedral_angle_1_deg	6.606
r_scangle_it	2.951
r_scbond_it	1.837
r_angle_refined_deg	1.509
r_mcangle_it	1.165
r_mcbond_it	0.725
r_symmetry_vdw_refined	0.355
r_nbtor_refined	0.303
r_nbd_refined	0.21
r_symmetry_hbond_refined	0.178
r_xyhbond_nbd_refined	0.172
r_chiral_restr	0.095
r_bond_refined_d	0.014
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	18810
Nucleic Acid Atoms
Solvent Atoms	842
Heterogen Atoms	182

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction

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.