Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | binding site for residue ZPT A 501 |
| Chain | Residue |
| A | HIS439 |
| A | CYS441 |
| A | TCE504 |
| A | HOH716 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | binding site for residue ZPT A 502 |
| Chain | Residue |
| A | CYS1 |
| A | ASP72 |
| A | HOH603 |
| A | HOH697 |
| site_id | AC3 |
| Number of Residues | 7 |
| Details | binding site for residue SO4 A 503 |
| Chain | Residue |
| A | ARG18 |
| A | ALA62 |
| A | GLY63 |
| A | ARG410 |
| A | HOH649 |
| A | HOH675 |
| A | ARG7 |
| site_id | AC4 |
| Number of Residues | 8 |
| Details | binding site for residue TCE A 504 |
| Chain | Residue |
| A | LYS36 |
| A | LYS74 |
| A | TRP81 |
| A | LEU428 |
| A | THR430 |
| A | HIS439 |
| A | ZPT501 |
| A | HOH645 |
