2OC4

Crystal structure of human purine nucleoside phosphorylase mutant H257D with Imm-H

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.6	298	0.1 M Sodium Acetate, 4.0 M Ammonium Acetate, pH 4.6, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 142.974	α = 90
b = 142.974	β = 90
c = 168.55	γ = 120

Symmetry
Space Group	H 3 2

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 315		2006-05-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	1.100	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	2.592	30	99.3	0.088	0.071	7.1	6.9	20698	20554			67

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	2.592	2.69	94.6		0.625	0.62	1.2	5.3	1945

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	MOLECULAR REPLACEMENT	THROUGHOUT	1RR6	2.592	29.06	20731	20551	1051	99.13	0.207	0.207	0.205	0.252	RANDOM	62.374

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]
0.08	0.04		0.08		-0.12

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.295
r_dihedral_angle_4_deg	25.728
r_dihedral_angle_3_deg	22.196
r_dihedral_angle_1_deg	7.457
r_mcangle_it	3.158
r_scangle_it	2.546
r_angle_refined_deg	2.219
r_mcbond_it	1.878
r_scbond_it	1.661
r_nbtor_refined	0.36

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.295
r_dihedral_angle_4_deg	25.728
r_dihedral_angle_3_deg	22.196
r_dihedral_angle_1_deg	7.457
r_mcangle_it	3.158
r_scangle_it	2.546
r_angle_refined_deg	2.219
r_mcbond_it	1.878
r_scbond_it	1.661
r_nbtor_refined	0.36
r_nbd_refined	0.335
r_symmetry_vdw_refined	0.233
r_xyhbond_nbd_refined	0.215
r_symmetry_hbond_refined	0.192
r_chiral_restr	0.129
r_bond_refined_d	0.021
r_gen_planes_refined	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2236
Nucleic Acid Atoms
Solvent Atoms	48
Heterogen Atoms	24

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CBASS	data collection
HKL-2000	data reduction
HKL-2000	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 R01GM133198.