Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE ZN A 501 |
| Chain | Residue |
| A | CYS13 |
| A | CYS16 |
| A | CYS56 |
| A | CYS59 |
| site_id | AC2 |
| Number of Residues | 17 |
| Details | BINDING SITE FOR RESIDUE SAH A 502 |
| Chain | Residue |
| A | ASP135 |
| A | PRO136 |
| A | PHE155 |
| A | PHE156 |
| A | ARG177 |
| A | HIS178 |
| A | VAL179 |
| A | ILE183 |
| A | HOH620 |
| A | HOH665 |
| A | HOH666 |
| A | HOH680 |
| A | TYR74 |
| A | THR81 |
| A | ILE113 |
| A | GLY114 |
| A | ASN116 |
| site_id | AC3 |
| Number of Residues | 23 |
| Details | BINDING SITE FOR RESIDUE 3YN A 503 |
| Chain | Residue |
| A | TYR77 |
| A | TYR79 |
| A | HIS182 |
| A | TYR223 |
| A | GLU225 |
| A | HIS226 |
| A | HIS255 |
| A | PRO328 |
| A | ALA329 |
| A | LYS330 |
| A | ASP350 |
| A | THR351 |
| A | THR352 |
| A | LYS355 |
| A | ASN387 |
| A | TYR388 |
| A | ILE392 |
| A | LYS395 |
| A | HOH617 |
| A | HOH650 |
| A | HOH655 |
| A | HOH677 |
| A | HOH678 |
