Experiment: 3CKS

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	298	10mg/ml urate oxidase, 0.2mg/ml 8-azaxanthine, 50mM Tris, 20mM NaCl, PEG 8000 4-10%, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.98	58.67

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 80.285	α = 90
b = 96.153	β = 90
c = 105.349	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	277	CCD	MARMOSAIC 225 mm CCD	mirrors	2005-11-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.97625	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	1.7	50	89.4	0.057	10.4	3.8		40386			17.79

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)
	1.7	1.76	95.7		0.317	3.5	3.8	4249

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	rigid body	THROUGHOUT	2IBA	1.7	14.87	40319	2050	89.26	0.173	0.171	0.201	RANDOM	19.798

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]
0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.687
r_dihedral_angle_3_deg	12.817
r_dihedral_angle_4_deg	9.937
r_dihedral_angle_1_deg	6.05
r_scangle_it	4.019
r_scbond_it	2.433
r_mcangle_it	1.619
r_angle_refined_deg	1.51
r_mcbond_it	0.866
r_nbtor_refined	0.309

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.687
r_dihedral_angle_3_deg	12.817
r_dihedral_angle_4_deg	9.937
r_dihedral_angle_1_deg	6.05
r_scangle_it	4.019
r_scbond_it	2.433
r_mcangle_it	1.619
r_angle_refined_deg	1.51
r_mcbond_it	0.866
r_nbtor_refined	0.309
r_nbd_refined	0.208
r_symmetry_vdw_refined	0.177
r_symmetry_hbond_refined	0.159
r_xyhbond_nbd_refined	0.106
r_chiral_restr	0.1
r_metal_ion_refined	0.091
r_bond_refined_d	0.012
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2373
Nucleic Acid Atoms
Solvent Atoms	176
Heterogen Atoms	17

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345dtb	data collection
HKL-2000	data reduction
REFMAC	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.