3BK8

Urate oxidase aza-xanthine complex in cyanide

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	10.5	289	8.5MG/ML URATE OXIDASE, 0.2 M SODIUM CYANIDE, 50MM TRIS BUFFER, 0.5MG/ML 8-AZAXANTHINE, 15% PEG 8000 , pH 10.5, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.88	57.35

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.718	α = 90
b = 95.105	β = 90
c = 103.957	γ = 90

Symmetry
Space Group	I 2 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	290	CCD	MARRESEARCH	BENT MIRROR	2007-05-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.978	ESRF	BM14

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	1.6	30	98.9	0.055	22.3	4.3	51797	50567	2	4

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)
	1.6	1.7	99.9		0.2103	4.4	3.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	FREE R	PDB ENTRY 2ICQ	1.6	10	51797	50567	4136	99.4	0.2083	0.2002	0.1998	0.2301	RANDOM

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
5		2651

RMS Deviations
Key	Refinement Restraint Deviation
s_anti_bump_dis_restr	0.061
s_similar_adp_cmpnt	0.059
s_non_zero_chiral_vol	0.048
s_zero_chiral_vol	0.047
s_angle_d	0.028
s_from_restr_planes	0.028
s_bond_d	0.015
s_similar_dist
s_rigid_bond_adp_cmpnt
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2379
Nucleic Acid Atoms
Solvent Atoms	280
Heterogen Atoms	12

Software

Software
Software Name	Purpose
SHELX	model building
SHELXL-97	refinement
MAR345dtb	data collection
MAR345	data collection
MOSFLM	data reduction
FFT	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.