Functional Information from GO Data
| Chain | GOid | namespace | contents | 
| A | 0000105 | biological_process | L-histidine biosynthetic process | 
| A | 0000166 | molecular_function | nucleotide binding | 
| A | 0000287 | molecular_function | magnesium ion binding | 
| A | 0003879 | molecular_function | ATP phosphoribosyltransferase activity | 
| A | 0005524 | molecular_function | ATP binding | 
| A | 0005737 | cellular_component | cytoplasm | 
| A | 0005829 | cellular_component | cytosol | 
| A | 0008652 | biological_process | amino acid biosynthetic process | 
| A | 0016740 | molecular_function | transferase activity | 
| A | 0016757 | molecular_function | glycosyltransferase activity | 
| A | 0046872 | molecular_function | metal ion binding | 
Functional Information from PDB Data
| site_id | AC1 | 
| Number of Residues | 10 | 
| Details | BINDING SITE FOR RESIDUE AMP A 400 | 
| Chain | Residue | 
| A | ARG16 | 
| A | THR176 | 
| A | CYS104 | 
| A | GLU156 | 
| A | ASP169 | 
| A | LEU170 | 
| A | SER172 | 
| A | THR173 | 
| A | GLY174 | 
| A | ALA175 | 
| site_id | AC2 | 
| Number of Residues | 6 | 
| Details | BINDING SITE FOR RESIDUE TLA A 410 | 
| Chain | Residue | 
| A | ALA26 | 
| A | ARG27 | 
| A | GLY29 | 
| A | PHE274 | 
| A | TRP275 | 
| A | LYS296 | 
| site_id | AC3 | 
| Number of Residues | 2 | 
| Details | BINDING SITE FOR RESIDUE TLA A 411 | 
Functional Information from PROSITE/UniProt
| site_id | PS01316 | 
| Number of Residues | 22 | 
| Details | ATP_P_PHORIBOSYLTR ATP phosphoribosyltransferase signature. EvapraGlAdaIcDLvsTGaTL | 
| Chain | Residue | Details | 
| A | GLU156-LEU177 |  |