1HGX
HYPOXANTHINE-GUANINE-XANTHINE PHOSPHORIBOSYLTRANSFERASE (HGXPRTASE)
Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0000166 | molecular_function | nucleotide binding |
| A | 0000287 | molecular_function | magnesium ion binding |
| A | 0000310 | molecular_function | xanthine phosphoribosyltransferase activity |
| A | 0004422 | molecular_function | hypoxanthine phosphoribosyltransferase activity |
| A | 0005737 | cellular_component | cytoplasm |
| A | 0005829 | cellular_component | cytosol |
| A | 0006166 | biological_process | purine ribonucleoside salvage |
| A | 0006177 | biological_process | GMP biosynthetic process |
| A | 0006178 | biological_process | guanine salvage |
| A | 0016740 | molecular_function | transferase activity |
| A | 0016757 | molecular_function | glycosyltransferase activity |
| A | 0016763 | molecular_function | pentosyltransferase activity |
| A | 0032263 | biological_process | GMP salvage |
| A | 0032264 | biological_process | IMP salvage |
| A | 0032265 | biological_process | XMP salvage |
| A | 0043101 | biological_process | purine-containing compound salvage |
| A | 0046100 | biological_process | hypoxanthine metabolic process |
| A | 0046872 | molecular_function | metal ion binding |
| A | 0052657 | molecular_function | guanine phosphoribosyltransferase activity |
| B | 0000166 | molecular_function | nucleotide binding |
| B | 0000287 | molecular_function | magnesium ion binding |
| B | 0000310 | molecular_function | xanthine phosphoribosyltransferase activity |
| B | 0004422 | molecular_function | hypoxanthine phosphoribosyltransferase activity |
| B | 0005737 | cellular_component | cytoplasm |
| B | 0005829 | cellular_component | cytosol |
| B | 0006166 | biological_process | purine ribonucleoside salvage |
| B | 0006177 | biological_process | GMP biosynthetic process |
| B | 0006178 | biological_process | guanine salvage |
| B | 0016740 | molecular_function | transferase activity |
| B | 0016757 | molecular_function | glycosyltransferase activity |
| B | 0016763 | molecular_function | pentosyltransferase activity |
| B | 0032263 | biological_process | GMP salvage |
| B | 0032264 | biological_process | IMP salvage |
| B | 0032265 | biological_process | XMP salvage |
| B | 0043101 | biological_process | purine-containing compound salvage |
| B | 0046100 | biological_process | hypoxanthine metabolic process |
| B | 0046872 | molecular_function | metal ion binding |
| B | 0052657 | molecular_function | guanine phosphoribosyltransferase activity |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE SO4 B 700 |
| Chain | Residue |
| B | ASP106 |
| B | THR107 |
| B | GLY108 |
| B | LEU109 |
| B | THR110 |
| B | HOH451 |
| site_id | AC2 |
| Number of Residues | 17 |
| Details | BINDING SITE FOR RESIDUE 5GP A 600 |
| Chain | Residue |
| A | THR107 |
| A | GLY108 |
| A | LEU109 |
| A | THR110 |
| A | LYS134 |
| A | ARG155 |
| A | TYR156 |
| A | ILE157 |
| A | ASP163 |
| A | HOH413 |
| A | HOH414 |
| A | HOH418 |
| A | HOH422 |
| A | HOH464 |
| A | ASP103 |
| A | ILE104 |
| A | ASP106 |
Functional Information from PROSITE/UniProt
| site_id | PS00103 |
| Number of Residues | 13 |
| Details | PUR_PYR_PR_TRANSFER Purine/pyrimidine phosphoribosyl transferases signature. VLVVEDIIDTGlT |
| Chain | Residue | Details |
| A | VAL98-THR110 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 2 |
| Details | ACT_SITE: Proton acceptor => ECO:0000250 |
| Chain | Residue | Details |
| A | ASP106 | |
| B | ASP106 |
| site_id | SWS_FT_FI2 |
| Number of Residues | 4 |
| Details | BINDING: |
| Chain | Residue | Details |
| A | GLU102 | |
| A | LYS134 | |
| B | GLU102 | |
| B | LYS134 |
| site_id | SWS_FT_FI3 |
| Number of Residues | 2 |
| Details | BINDING: BINDING => ECO:0000250 |
| Chain | Residue | Details |
| A | ASP163 | |
| B | ASP163 |
Catalytic Information from CSA
| site_id | CSA1 |
| Number of Residues | 4 |
| Details | Annotated By Reference To The Literature 1a95 |
| Chain | Residue | Details |
| A | GLU102 | |
| A | ASP103 | |
| A | ASP106 | |
| A | LYS134 |
| site_id | CSA2 |
| Number of Residues | 4 |
| Details | Annotated By Reference To The Literature 1a95 |
| Chain | Residue | Details |
| B | GLU102 | |
| B | ASP103 | |
| B | ASP106 | |
| B | LYS134 |
| site_id | CSA3 |
| Number of Residues | 5 |
| Details | Annotated By Reference To The Literature 1a95 |
| Chain | Residue | Details |
| A | GLU102 | |
| A | ASP103 | |
| A | LYS138 | |
| A | ASP106 | |
| A | LYS134 |
| site_id | CSA4 |
| Number of Residues | 5 |
| Details | Annotated By Reference To The Literature 1a95 |
| Chain | Residue | Details |
| B | GLU102 | |
| B | ASP103 | |
| B | LYS138 | |
| B | ASP106 | |
| B | LYS134 |
