Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0003824 | molecular_function | catalytic activity |
| A | 0004731 | molecular_function | purine-nucleoside phosphorylase activity |
| A | 0006139 | biological_process | nucleobase-containing compound metabolic process |
| A | 0009116 | biological_process | nucleoside metabolic process |
| A | 0009164 | biological_process | nucleoside catabolic process |
| A | 0016757 | molecular_function | glycosyltransferase activity |
| A | 0016763 | molecular_function | pentosyltransferase activity |
| A | 0042278 | biological_process | purine nucleoside metabolic process |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 18 |
| Details | BINDING SITE FOR RESIDUE ADN A 236 |
| Chain | Residue |
| A | HIS4 |
| A | GLU179 |
| A | MET180 |
| A | GLU181 |
| A | ASP204 |
| A | ILE206 |
| A | SO4237 |
| A | HOH280 |
| A | HOH307 |
| A | HOH428 |
| A | ARG43 |
| A | MET64 |
| A | ARG87 |
| A | THR90 |
| A | CYS91 |
| A | GLY92 |
| A | PHE159 |
| A | VAL178 |
| site_id | AC2 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE SO4 A 237 |
| Chain | Residue |
| A | GLY20 |
| A | ARG43 |
| A | ARG87 |
| A | GLY89 |
| A | THR90 |
| A | ADN236 |
| A | HOH269 |
| A | HOH279 |
| site_id | AC3 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE SO4 A 238 |
| Chain | Residue |
| A | ARG117 |
| A | ARG117 |
| A | GLY122 |
| A | HOH422 |
| A | HOH423 |
| A | HOH423 |
| site_id | AC4 |
| Number of Residues | 15 |
| Details | BINDING SITE FOR RESIDUE GOL A 239 |
| Chain | Residue |
| A | THR119 |
| A | TYR160 |
| A | ARG161 |
| A | GLU162 |
| A | LYS169 |
| A | TYR173 |
| A | LEU188 |
| A | LYS191 |
| A | HOH252 |
| A | HOH274 |
| A | HOH319 |
| A | HOH373 |
| A | HOH411 |
| A | HOH437 |
| A | HOH438 |
| site_id | AC5 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE GOL A 240 |
| Chain | Residue |
| A | ASN74 |
| A | GLU75 |
| A | GLN78 |
| A | SER79 |
| A | TYR160 |
| A | HOH259 |
Functional Information from PROSITE/UniProt
| site_id | PS01232 |
| Number of Residues | 16 |
| Details | PNP_UDP_1 Purine and other phosphorylases family 1 signature. GtGMGvPSiSIyvnEL |
| Chain | Residue | Details |
| A | GLY61-LEU76 | |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| A | ASP204 | |
| Chain | Residue | Details |
| A | HIS4 | |
| A | ARG43 | |
| Chain | Residue | Details |
| A | GLY20 | |
| A | ARG24 | |
| A | ARG87 | |
| A | GLU162 | |
| A | GLU179 | |
| A | SER203 | |
| Chain | Residue | Details |
| A | ARG217 | |
