Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE CYN A 181 |
| Chain | Residue |
| A | TYR70 |
| A | LEU92 |
| A | HIS123 |
| A | HEM180 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE CYN B 181 |
| Chain | Residue |
| B | TYR70 |
| B | HIS123 |
| B | HEM180 |
| B | HOH182 |
| site_id | AC3 |
| Number of Residues | 12 |
| Details | BINDING SITE FOR RESIDUE HEM A 180 |
| Chain | Residue |
| A | LEU79 |
| A | ILE82 |
| A | HIS86 |
| A | HIS99 |
| A | ILE119 |
| A | HIS123 |
| A | ILE126 |
| A | LEU128 |
| A | PHE137 |
| A | CYN181 |
| A | HOH265 |
| A | PHE69 |
| site_id | AC4 |
| Number of Residues | 17 |
| Details | BINDING SITE FOR RESIDUE HEM B 180 |
| Chain | Residue |
| A | SER15 |
| A | SER17 |
| A | GLN20 |
| B | LEU73 |
| B | LEU79 |
| B | ILE83 |
| B | SER87 |
| B | LEU92 |
| B | LEU96 |
| B | HIS99 |
| B | ILE119 |
| B | HIS123 |
| B | ILE126 |
| B | LEU128 |
| B | PHE137 |
| B | LEU140 |
| B | CYN181 |
