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 | CYS54 |
| A | CYS57 |
| site_id | AC2 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE SAH A 502 |
| Chain | Residue |
| A | GLY113 |
| A | ASN115 |
| A | PHE133 |
| A | GLU134 |
| A | PRO135 |
| A | SER136 |
| A | PHE154 |
| A | PHE155 |
| A | ALA176 |
| A | ASN177 |
| A | THR178 |
| A | ILE182 |
| A | TYR184 |
| A | HOH614 |
| A | HOH658 |
| A | HOH663 |
| A | HOH670 |
| A | PHE72 |
| A | TYR76 |
| A | SER80 |
| A | PHE90 |
| A | ILE112 |
| site_id | AC3 |
| Number of Residues | 25 |
| Details | BINDING SITE FOR RESIDUE 0N2 A 503 |
| Chain | Residue |
| A | TYR76 |
| A | TYR78 |
| A | ASN177 |
| A | HIS181 |
| A | TYR222 |
| A | GLU224 |
| A | HIS225 |
| A | HIS254 |
| A | GLY324 |
| A | THR326 |
| A | ALA327 |
| A | LYS328 |
| A | ASP348 |
| A | THR349 |
| A | THR350 |
| A | LYS353 |
| A | ASN385 |
| A | HIS386 |
| A | GLU389 |
| A | ILE390 |
| A | LYS393 |
| A | HOH621 |
| A | HOH628 |
| A | HOH639 |
| A | HOH662 |
