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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：P55859 New Search
21PDB entries
29Biological assembly
41chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
1A9O BOVINE PURINE NUCLEOSIDE PHOSPHORYLASE COMPLEXED WITH PHOSPHATE Deposited 1998-04-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded PO4 PHOSPHATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions PROTEIN WAS CRYSTALLIZED FROM 31-35% PEG-400 IN 100 MM TRIS BUFFER, PH 7.8-8.2; 100 MM MGCL2; 1% OCTYL-BETA- D-GLUCOPYRANOSIDE
Resolution 2.00 Å
1A9P BOVINE PURINE NUCLEOSIDE PHOSPHORYLASE COMPLEXED WITH 9-DEAZAINOSINE AND PHOSPHATE Deposited 1998-04-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded PO4 PHOSPHATE ION × 3 9DI 9-DEAZAINOSINE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions PROTEIN WAS CRYSTALLIZED FROM 31-35% PEG-400 IN 100 MM HEPES OR TRIS BUFFER, PH 7.8-8.2; 100 MM MGCL2; 1% OCTYL-BETA- D-GLUCOPYRANOSIDE
Resolution 2.40 Å
1A9Q BOVINE PURINE NUCLEOSIDE PHOSPHORYLASE COMPLEXED WITH INOSINE Deposited 1998-04-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–282（282 aa）
Not recorded SO4 SULFATE ION × 3 HPA HYPOXANTHINE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions 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 ARTI- FICIAL MOTHER LIQUOR CONTAINING 7.3 MM INOSINE.
Resolution 2.00 Å
1A9R BOVINE PURINE NUCLEOSIDE PHOSPHORYLASE COMPLEXED WITH HYPOXANTHINE AND SULFATE Deposited 1998-04-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–282（282 aa）
Not recorded SO4 SULFATE ION × 3 HPA HYPOXANTHINE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions PROTEIN WAS CRYSTALLIZED FROM 31-35% PEG-400 IN 100 MM HEPES OR TRIS BUFFER, PH 7.8-8.2; 100 MM MGCL2; 1% OCTYL-BETA- D-GLUCOPYRANOSIDE
Resolution 2.00 Å
1A9S BOVINE PURINE NUCLEOSIDE PHOSPHORYLASE COMPLEXED WITH INOSINE AND SULFATE Deposited 1998-04-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded SO4 SULFATE ION × 3 NOS INOSINE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions 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.
Resolution 2.00 Å
1A9T BOVINE PURINE NUCLEOSIDE PHOSPHORYLASE COMPLEXED WITH 9-DEAZAINOSINE AND PHOSPHATE Deposited 1998-04-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–284（284 aa）
Not recorded R1P 1-O-phosphono-alpha-D-ribofuranose × 3 HPA HYPOXANTHINE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions PROTEIN WAS CRYSTALLIZED FROM 31-35% PEG-400 IN 100 MM HEPES OR TRIS BUFFER, PH 7.8-8.2; 100 MM MGCL2; 1% OCTYL-BETA- D-GLUCOPYRANOSIDE
Resolution 2.00 Å
1B8N PURINE NUCLEOSIDE PHOSPHORYLASE Deposited 1999-02-02 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–284（284 aa）
Not recorded MG MAGNESIUM ION × 1 PO4 PHOSPHATE ION × 1 IMG 1,4-DIDEOXY-1,4-IMINO-1-(S)-(9-DEAZAGUANIN-9-YL)-D-RIBITOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；pH 8.0
Resolution 2.00 Å R-free 0.246
1B8N PURINE NUCLEOSIDE PHOSPHORYLASE Deposited 1999-02-02 Assembly 2 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–284（284 aa）
Not recorded MG MAGNESIUM ION × 3 PO4 PHOSPHATE ION × 3 IMG 1,4-DIDEOXY-1,4-IMINO-1-(S)-(9-DEAZAGUANIN-9-YL)-D-RIBITOL × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；pH 8.0
Resolution 2.00 Å R-free 0.246
1B8O PURINE NUCLEOSIDE PHOSPHORYLASE Deposited 1999-02-02 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–284（284 aa）
Not recorded MG MAGNESIUM ION × 1 PO4 PHOSPHATE ION × 1 IMH 1,4-DIDEOXY-4-AZA-1-(S)-(9-DEAZAHYPOXANTHIN-9-YL)-D-RIBITOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；PEG-400, TRIS, MGCL2, K3PO4, pH 8.0
Resolution 1.50 Å R-free 0.232
1B8O PURINE NUCLEOSIDE PHOSPHORYLASE Deposited 1999-02-02 Assembly 2 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–284（284 aa）
Not recorded MG MAGNESIUM ION × 3 PO4 PHOSPHATE ION × 3 IMH 1,4-DIDEOXY-4-AZA-1-(S)-(9-DEAZAHYPOXANTHIN-9-YL)-D-RIBITOL × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；PEG-400, TRIS, MGCL2, K3PO4, pH 8.0
Resolution 1.50 Å R-free 0.232
1FXU PURINE NUCLEOSIDE PHOSPHORYLASE FROM CALF SPLEEN IN COMPLEX WITH N(7)-ACYCLOGUANOSINE INHIBITOR AND A PHOSPHATE ION Deposited 2000-09-27 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 1 PO4 PHOSPHATE ION × 1 GU7 2-AMINO-7-[2-(2-HYDROXY-1-HYDROXYMETHYL-ETHYLAMINO)-ETHYL]-1,7-DIHYDRO-PURIN-6-ONE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.04M Tris/HCl buffer, PEG 4000, 11-16%, 0.08M MgCl2, VAPOR DIFFUSION, HANGING DROP, temperature 18K
Resolution 2.20 Å R-free 0.244
1FXU PURINE NUCLEOSIDE PHOSPHORYLASE FROM CALF SPLEEN IN COMPLEX WITH N(7)-ACYCLOGUANOSINE INHIBITOR AND A PHOSPHATE ION Deposited 2000-09-27 Assembly 2 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded MG MAGNESIUM ION × 3 ZN ZINC ION × 3 PO4 PHOSPHATE ION × 3 GU7 2-AMINO-7-[2-(2-HYDROXY-1-HYDROXYMETHYL-ETHYLAMINO)-ETHYL]-1,7-DIHYDRO-PURIN-6-ONE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.04M Tris/HCl buffer, PEG 4000, 11-16%, 0.08M MgCl2, VAPOR DIFFUSION, HANGING DROP, temperature 18K
Resolution 2.20 Å R-free 0.244
1FXU PURINE NUCLEOSIDE PHOSPHORYLASE FROM CALF SPLEEN IN COMPLEX WITH N(7)-ACYCLOGUANOSINE INHIBITOR AND A PHOSPHATE ION Deposited 2000-09-27 Assembly 3 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded MG MAGNESIUM ION × 3 ZN ZINC ION × 3 PO4 PHOSPHATE ION × 3 GU7 2-AMINO-7-[2-(2-HYDROXY-1-HYDROXYMETHYL-ETHYLAMINO)-ETHYL]-1,7-DIHYDRO-PURIN-6-ONE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.04M Tris/HCl buffer, PEG 4000, 11-16%, 0.08M MgCl2, VAPOR DIFFUSION, HANGING DROP, temperature 18K
Resolution 2.20 Å R-free 0.244
1LV8 Crystal structure of calf spleen purine nucleoside phosphorylase in a new space group with full trimer in the asymmetric unit Deposited 2002-05-27 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–289（289 aa）
Chain B 1–289（289 aa）
Chain C 1–289（289 aa）
Chain D 1–289（289 aa）
Chain E 1–289（289 aa）
Chain F 1–289（289 aa）
Not recorded CA CALCIUM ION × 6 9PP 2,6-DIAMINO-(S)-9-[2-(PHOSPHONOMETHOXY)PROPYL]PURINE × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.25；298 K；HEPES, PEG400, CaCl2, pH 7.25, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.30 Å R-free 0.258
1LVU Crystal structure of calf spleen purine nucleoside phosphorylase in a new space group with full trimer in the asymmetric unit Deposited 2002-05-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–289（289 aa）
Chain B 1–289（289 aa）
Chain C 1–289（289 aa）
Chain D 1–289（289 aa）
Chain E 1–289（289 aa）
Chain F 1–289（289 aa）
Not recorded CA CALCIUM ION × 10 9PP 2,6-DIAMINO-(S)-9-[2-(PHOSPHONOMETHOXY)PROPYL]PURINE × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.25；286 K；PEG400, CaCl2, HEPES, pH 7.25, VAPOR DIFFUSION, HANGING DROP, temperature 286K
Resolution 2.05 Å R-free 0.244
1PBN PURINE NUCLEOSIDE PHOSPHORYLASE Deposited 1995-07-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å R-free 0.270
1V48 Calf spleen purine nucleoside phosphorylase (PNP) binary complex with 9-(5,5-difluoro-5-phosphonopenthyl)guanine Deposited 2003-11-11 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded ZN ZINC ION × 3 MG MAGNESIUM ION × 3 HA1 9-(5,5-DIFLUORO-5-PHOSPHONOPENTYL)GUANINE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.75；291 K；PEG 4000, Hepes, magnesium chloride, pH 7.75, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 2.20 Å R-free 0.242
1V48 Calf spleen purine nucleoside phosphorylase (PNP) binary complex with 9-(5,5-difluoro-5-phosphonopenthyl)guanine Deposited 2003-11-11 Assembly 2 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded ZN ZINC ION × 3 MG MAGNESIUM ION × 3 HA1 9-(5,5-DIFLUORO-5-PHOSPHONOPENTYL)GUANINE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.75；291 K；PEG 4000, Hepes, magnesium chloride, pH 7.75, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 2.20 Å R-free 0.242
1VFN PURINE NUCLEOSIDE PHOSPHORYLASE Deposited 1996-10-08 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 4–284（281 aa）
Not recorded MG MAGNESIUM ION × 3 ZN ZINC ION × 3 HPA HYPOXANTHINE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；16%(W/V) PEG 4000, 0.04M TRIS-HCL BUFFER PH 8.2-8.5, 0.08M MGCL2, pH 8.0
Resolution 2.15 Å
1VFN PURINE NUCLEOSIDE PHOSPHORYLASE Deposited 1996-10-08 Assembly 2 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 4–284（281 aa）
Not recorded MG MAGNESIUM ION × 3 ZN ZINC ION × 3 HPA HYPOXANTHINE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；16%(W/V) PEG 4000, 0.04M TRIS-HCL BUFFER PH 8.2-8.5, 0.08M MGCL2, pH 8.0
Resolution 2.15 Å
2AI1 Purine nucleoside phosphorylase from calf spleen Deposited 2005-07-28 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded MG MAGNESIUM ION × 3 ZN ZINC ION × 3 144 TRIS-HYDROXYMETHYL-METHYL-AMMONIUM × 3 P1G ((2R,4R,6R,6AS)-4-(2-AMINO-6-OXO-1,6-DIHYDROPURIN-9-YL)-6-(HYDROXYMETHYL)-TETRAHYDROFURO[3,4-D][1,3]DIOXOL-2-YL)METHYLPHOSPHONIC ACID × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；296 K；PEG2K MME, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 296K
Resolution 2.00 Å R-free 0.254
2AI1 Purine nucleoside phosphorylase from calf spleen Deposited 2005-07-28 Assembly 2 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded MG MAGNESIUM ION × 3 ZN ZINC ION × 3 144 TRIS-HYDROXYMETHYL-METHYL-AMMONIUM × 3 P1G ((2R,4R,6R,6AS)-4-(2-AMINO-6-OXO-1,6-DIHYDROPURIN-9-YL)-6-(HYDROXYMETHYL)-TETRAHYDROFURO[3,4-D][1,3]DIOXOL-2-YL)METHYLPHOSPHONIC ACID × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；296 K；PEG2K MME, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 296K
Resolution 2.00 Å R-free 0.254
2AI2 Purine nucleoside phosphorylase from calf spleen Deposited 2005-07-28 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded MG MAGNESIUM ION × 3 ZN ZINC ION × 3 144 TRIS-HYDROXYMETHYL-METHYL-AMMONIUM × 3 P1D ((2S,3AS,4R,6S)-4-(HYDROXYMETHYL)-6-(4-OXO-4,5-DIHYDRO-3H-PYRROLO[3,2-D]PYRIMIDIN-7-YL)-TETRAHYDROFURO[3,4-D][1,3]DIOXO L-2-YL)METHYLPHOSPHONIC ACID × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；296 K；PEG2K MME , pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 296K
Resolution 1.70 Å R-free 0.231
2AI2 Purine nucleoside phosphorylase from calf spleen Deposited 2005-07-28 Assembly 2 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded MG MAGNESIUM ION × 3 ZN ZINC ION × 3 144 TRIS-HYDROXYMETHYL-METHYL-AMMONIUM × 3 P1D ((2S,3AS,4R,6S)-4-(HYDROXYMETHYL)-6-(4-OXO-4,5-DIHYDRO-3H-PYRROLO[3,2-D]PYRIMIDIN-7-YL)-TETRAHYDROFURO[3,4-D][1,3]DIOXO L-2-YL)METHYLPHOSPHONIC ACID × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；296 K；PEG2K MME , pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 296K
Resolution 1.70 Å R-free 0.231
2AI3 Purine nucleoside phosphorylase from calf spleen Deposited 2005-07-28 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded MG MAGNESIUM ION × 3 ZN ZINC ION × 3 144 TRIS-HYDROXYMETHYL-METHYL-AMMONIUM × 3 P2G (2S,4R,6R,6AS)-4-(2-AMINO-6-OXO-1,6-DIHYDROPURIN-9-YL)-6-(HYDROXYMETHYL)-TETRAHYDROFURO[3,4-D][1,3]DIOXOL-2-YLPHOSPHONI C ACID × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；296 K；PEG2K MME , pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 296K
Resolution 1.70 Å R-free 0.253
2QPL Crystal structure of calf spleen purine nucleoside phosphorylase complexed to a novel purine analogue Deposited 2007-07-24 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 3–284（282 aa）
Not recorded SO4 SULFATE ION × 3 MG MAGNESIUM ION × 3 BTY 4-amino-7-methylpyrazolo[1,5-a][1,3,5]triazin-2(1H)-one × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 8；291 K；31-35% PEG-400 IN 100 MM HEPES OR TRIS BUFFER, PH 7.8-8.2; 100 MM MGCL2; 1% OCTYL-BETA-D-GLUCOPYRANOSIDE , pH 8.0, VAPOR DIFFUSION, temperature 291K
Resolution 2.10 Å R-free 0.218
3FUC Recombinant calf purine nucleoside phosphorylase in a binary complex with multisubstrate analogue inhibitor 9-(5',5'-difluoro-5'-phosphonopentyl)-9-deazaguanine structure in a new space group with one full trimer in the asymmetric unit Deposited 2009-01-14 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–284（284 aa） Fragment：residues 1-284
Chain B 1–284（284 aa） Fragment：residues 1-284
Chain C 1–284（284 aa） Fragment：residues 1-284
Not recorded 9D9 [5-(2-amino-4-oxo-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-7-yl)-1,1-difluoropentyl]phosphonic acid × 3 MG MAGNESIUM ION × 3 AZI AZIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.7；298 K；33% PEG 400, 0.1M SODIUM AZIDE, 0.1M HEPES, 0.1M MAGNESIUM CHLORIDE, 1% OCTYL BETA-D-GLUCOPYRANOSIDE, pH 7.7, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 1.45 Å R-free 0.199
3PNP THE HIGH RESOLUTION CRYSTAL STRUCTURE OF BOVINE SPLEEN PURINE NUCLEOSIDE PHOSPHORYLASE IN COMPLEX FORMS WITH PHOSPHATE AND 9-DEAZAINOSINE Deposited 1998-03-27 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded MG MAGNESIUM ION × 3 PO4 PHOSPHATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；pH 8.0
Resolution 1.60 Å R-free 0.232
4PNP THE HIGH RESOLUTION CRYSTAL STRUCTURE OF BOVINE SPLEEN PURINE NUCLEOSIDE PHOSPHORYLASE IN COMPLEX FORMS WITH PHOSPHATE AND 9-DEAZAINOSINE Deposited 1998-03-30 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–289（289 aa）
Not recorded PO4 PHOSPHATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.1；pH 8.1
Resolution 1.80 Å R-free 0.248

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.