5ETJ

Crystal structure of purine nucleoside phosphorylase (E258D, L261A) mutant from human complexed with DADMe-ImmG and phosphate

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3PHB	PDB entry 3PHB

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	295	Protein (10 mg/mL); Reservoir (0.2 M lithium sulfate, 0.1 M TRIS-HCl, pH 8.5 and 20% (w/v) PEG 4000)

Crystal Properties
Matthews coefficient	Solvent content
2.91	57.77

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 268.808	α = 90
b = 58.845	β = 112.92
c = 173.155	γ = 90

Symmetry
Space Group	C 1 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	RAYONIX MX225HE		2015-11-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.97931	APS	31-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.3	50	99.2	0.095	16.3	7.47	112272	105996			46

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	2.3	2.43	96.4		0.777	2.82	7.51

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 3PHB	2.3	25	105996	5579	99.8	0.1797	0.1781	0.2109	RANDOM	43.583

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]
-1.45		-0.57	2.4		-0.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.902
r_dihedral_angle_4_deg	17.245
r_dihedral_angle_3_deg	15.078
r_dihedral_angle_1_deg	6.477
r_mcangle_it	3.887
r_mcbond_it	2.518
r_mcbond_other	2.518
r_angle_refined_deg	1.527
r_angle_other_deg	0.96
r_chiral_restr	0.085

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.902
r_dihedral_angle_4_deg	17.245
r_dihedral_angle_3_deg	15.078
r_dihedral_angle_1_deg	6.477
r_mcangle_it	3.887
r_mcbond_it	2.518
r_mcbond_other	2.518
r_angle_refined_deg	1.527
r_angle_other_deg	0.96
r_chiral_restr	0.085
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	13365
Nucleic Acid Atoms
Solvent Atoms	352
Heterogen Atoms	180

Software

Software
Software Name	Purpose
XDS	data reduction
XDS	data scaling
MOLREP	phasing
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 R01GM157729.