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- PDB-1a9s: BOVINE PURINE NUCLEOSIDE PHOSPHORYLASE COMPLEXED WITH INOSINE AND... -

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Basic information

Entry
Database: PDB / ID: 1a9s
TitleBOVINE PURINE NUCLEOSIDE PHOSPHORYLASE COMPLEXED WITH INOSINE AND SULFATE
ComponentsPURINE NUCLEOSIDE PHOSPHORYLASE
KeywordsPENTOSYLTRANSFERASE / PURINE NUCLEOSIDE PHOSPHORYLASE
Function / homology
Function and homology information


guanosine phosphorylase activity / purine-nucleoside phosphorylase activity / purine-nucleoside phosphorylase / purine ribonucleoside salvage / cytoplasm
Similarity search - Function
Purine nucleoside phosphorylase I, inosine/guanosine-specific / Purine phosphorylase, family 2, conserved site / Purine and other phosphorylases family 2 signature. / Purine nucleoside phosphorylase / Nucleoside phosphorylase domain / Nucleoside phosphorylase domain / Phosphorylase superfamily / Nucleoside phosphorylase superfamily / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
INOSINE / Purine nucleoside phosphorylase
Similarity search - Component
Biological speciesBos taurus (cattle)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2 Å
AuthorsMao, C. / Cook, W.J. / Zhou, M. / Fedorov, A.A. / Almo, S.C. / Ealick, S.E.
CitationJournal: Biochemistry / Year: 1998
Title: Calf spleen purine nucleoside phosphorylase complexed with substrates and substrate analogues.
Authors: Mao, C. / Cook, W.J. / Zhou, M. / Federov, A.A. / Almo, S.C. / Ealick, S.E.
History
DepositionApr 10, 1998Processing site: BNL
Revision 1.0Jul 15, 1998Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Aug 2, 2023Group: Database references / Derived calculations ...Database references / Derived calculations / Other / Refinement description
Category: database_2 / pdbx_database_status ...database_2 / pdbx_database_status / pdbx_initial_refinement_model / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.process_site / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4May 22, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: PURINE NUCLEOSIDE PHOSPHORYLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)32,4303
Polymers32,0651
Non-polymers3642
Water93752
1
A: PURINE NUCLEOSIDE PHOSPHORYLASE
hetero molecules

A: PURINE NUCLEOSIDE PHOSPHORYLASE
hetero molecules

A: PURINE NUCLEOSIDE PHOSPHORYLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)97,2899
Polymers96,1963
Non-polymers1,0936
Water543
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation8_656-z+1,x+1/2,-y+3/21
crystal symmetry operation11_466y-1/2,-z+3/2,-x+11
Buried area9590 Å2
ΔGint-107 kcal/mol
Surface area29180 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)94.200, 94.200, 94.200
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number198
Space group name H-MP213

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Components

#1: Protein PURINE NUCLEOSIDE PHOSPHORYLASE


Mass: 32065.471 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / Organ: SPLEEN
References: UniProt: P55859, purine-nucleoside phosphorylase
#2: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4
#3: Chemical ChemComp-NOS / INOSINE


Mass: 268.226 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H12N4O5
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 52 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.17 Å3/Da / Density % sol: 43.35 %
Crystal growDetails: PROTEIN WAS CRYSTALLIZED FROM 31-35% PEG-400 IN 100 MM HEPES BUFFER, PH 7.8-8.2; 100 MM MGCL2; 1% OCTYL-BETA- D-GLUCOPYRANOSIDE. CRYSTAL SOAKED IN 12.8 MM INOSINE AND 12 MM SULFATE.
PH range: 7.8-8.2
Crystal
*PLUS
Density % sol: 65 %
Crystal grow
*PLUS
Method: vapor diffusion, hanging drop / PH range low: 8.2 / PH range high: 7.8
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails
131-35 %PEG4001reservoir
2100 mMHEPES1reservoiror Tris-HCl
31 %beta-D-glucopyranoside1reservoir

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Data collection

DiffractionMean temperature: 296 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RUH2R / Wavelength: 1.5418
DetectorType: XUONG-HAMLIN MULTIWIRE / Detector: AREA DETECTOR / Date: Aug 1, 1996
RadiationMonochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2→8 Å / Num. obs: 15060 / % possible obs: 83 %

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Processing

Software
NameVersionClassification
X-PLOR3.8model building
X-PLOR3.8refinement
SDMSdata reduction
SDMSdata scaling
X-PLOR3.8phasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1PBN

1pbn


Resolution: 2→8 Å / Cross valid method: THROUGHOUT / σ(F): 2
RfactorNum. reflectionSelection details
Rwork0.18 --
obs0.18 15060 -
Rfree--RANDOM
Displacement parametersBiso mean: 14 Å2
Refinement stepCycle: LAST / Resolution: 2→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2200 0 24 52 2276
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.006
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg1.5
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d1.1
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PARHCSDX.PROTOPHCSDX.PRO
X-RAY DIFFRACTION2PARAM11.DNATOPH11.DNA
Software
*PLUS
Name: X-PLOR / Version: 3.8 / Classification: refinement
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_deg1.1

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