2CKJ

Human milk xanthine oxidoreductase

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6		26% (W/V) PEG 4K, 0.1M SODIUM ACETATE, PH 6, 0.25M AMMONIUM ACETATE, 10MM DTT, 10% (W/V) GLUCOSE

Crystal Properties
Matthews coefficient	Solvent content
2.7	53.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 197.734	α = 90
b = 197.734	β = 90
c = 285.538	γ = 120

Symmetry
Space Group	P 31 2 1

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	MARRESEARCH			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	3.5	30	98.2	0.12	3.6	4.4		75088		1.5

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	3.5	3.62	95.3		0.47	1.5	3.5

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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1FO4	3.59	30.76	70696	3745	98.2	0.182	0.178	0.258	RANDOM	22.75

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.738
r_dihedral_angle_3_deg	25.79
r_dihedral_angle_4_deg	22.106
r_dihedral_angle_1_deg	15.08
r_scangle_it	3.993
r_angle_refined_deg	3.461
r_scbond_it	2.564
r_mcangle_it	1.759
r_mcbond_it	1.193
r_symmetry_vdw_refined	0.36
r_nbtor_refined	0.354
r_nbd_refined	0.317
r_chiral_restr	0.221
r_xyhbond_nbd_refined	0.218
r_symmetry_hbond_refined	0.182
r_bond_refined_d	0.045
r_gen_planes_refined	0.012
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	39530
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	277

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALA	data scaling
AMoRE	phasing