1ODJ

PURINE NUCLEOSIDE PHOSPHORYLASE FROM THERMUS THERMOPHILUS

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		THE REFINED STRUCTURE OF PURINE NUCLEOSIDE PEPTIDASE FROM THERMUS THERMOPHILUS WAS USED AS STARTING MODEL FOR REFINEMENT

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	6.3	291	MICROBATCH METHOD UNDER OIL WAS USED. 15.1 MG/ML OF PROTEIN SOLUTION CONTAINING 0.02M DTT WAS MIXED WITH 1.65M SODIUM ACETATE AND 0.1M MES PH 6.3. THE CRYSTALLIZATION TEMPERATURE WAS 291 K. PARATONE-N OIL MIXED WITH 10% W/W OF GLYCEROL WAS USED FOR CRYOPROTECTION LIGAND BOUND CRYSTALS WERE OBTAINED BY 7 H SOAKING OF NATIVE CRYSTALS IN SOLUTION CONTAINING 1.2M SODIUM ACETATE PH 6.3, 20MM AMMONIUM SULFATE, 2MM MAGNESIUM SULFATE AND 5MM GUANOSINE

Crystal Properties
Matthews coefficient	Solvent content
2.5	49.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 132.757	α = 90
b = 132.757	β = 90
c = 172.06	γ = 90

Symmetry
Space Group	P 43 21 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	IMAGE PLATE	RIGAKU IMAGE PLATE, RAXIS-VII	MIRRORS	2003-01-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-D

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	2.4	15	96.9	0.118	16.9	4.99		58580		-0.5	11.4

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	2.4	2.49	92.7		0.332	3.9

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	THE REFINED STRUCTURE OF PURINE NUCLEOSIDE PEPTIDASE FROM THERMUS THERMOPHILUS WAS USED AS STARTING MODEL FOR REFINEMENT	2.4	14.93	58461	2960	96.8	0.221	0.221	0.286	RANDOM	27.5

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]
-1.85			-1.85		3.71

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.8
c_scangle_it	4.15
c_mcangle_it	3.24
c_scbond_it	3
c_mcbond_it	2.07
c_angle_deg	1.4
c_improper_angle_d	1.03
c_bond_d	0.007
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10716
Nucleic Acid Atoms
Solvent Atoms	258
Heterogen Atoms	150

Software

Software
Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing