4GKA

Crystal structure of purine nucleoside phosphorylase (W16Y, W94Y, W178Y, H257W) mutant from human complexed with phosphate

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	293	0.2M zinc acetate, 10% (v/v) 2-propanol, 0.1M sodium cacodylate , pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.02	39.07

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.882	α = 90
b = 233.67	β = 97.33
c = 70.077	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	100	CCD	ADSC QUANTUM 315r		2012-04-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	1.075	NSLS	X29A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	2.2	50	100	0.103	0.103	19.4	4.2	86349	86349			33

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.28	100		0.876	0.876	2.1	4.2	8627

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.2	45.29	86296	81976	4320	99.56	0.19023	0.19023	0.18798	0.23204	RANDOM	47.737

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]
4.64		-0.69	-0.84		-3.59

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.948
r_dihedral_angle_4_deg	14.783
r_dihedral_angle_3_deg	13.211
r_dihedral_angle_1_deg	6.067
r_angle_refined_deg	1.399
r_angle_other_deg	0.801
r_chiral_restr	0.07
r_bond_refined_d	0.009
r_gen_planes_other	0.008
r_gen_planes_refined	0.006

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.948
r_dihedral_angle_4_deg	14.783
r_dihedral_angle_3_deg	13.211
r_dihedral_angle_1_deg	6.067
r_angle_refined_deg	1.399
r_angle_other_deg	0.801
r_chiral_restr	0.07
r_bond_refined_d	0.009
r_gen_planes_other	0.008
r_gen_planes_refined	0.006
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	12575
Nucleic Acid Atoms
Solvent Atoms	404
Heterogen Atoms	42

Software

Software
Software Name	Purpose
ADSC	data collection
MOLREP	phasing
REFMAC	refinement
HKL-3000	data reduction
SCALEPACK	data scaling

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 R01GM157729.