Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 24 |
| Details | binding site for residue HEM A 401 |
| Chain | Residue |
| A | ASP137 |
| A | HIS215 |
| A | VAL219 |
| A | ASP220 |
| A | ARG232 |
| A | LEU246 |
| A | PHE248 |
| A | GLN261 |
| A | MET265 |
| A | MET276 |
| A | THR280 |
| A | VAL142 |
| A | NO2403 |
| A | HOH518 |
| A | HOH553 |
| A | HOH610 |
| A | HOH614 |
| A | GLY144 |
| A | THR145 |
| A | GLU146 |
| A | GLN174 |
| A | TRP176 |
| A | HIS178 |
| A | ARG197 |
| site_id | AC2 |
| Number of Residues | 6 |
| Details | binding site for residue MG A 402 |
| Chain | Residue |
| A | ASP220 |
| A | HOH506 |
| A | HOH518 |
| A | HOH553 |
| A | HOH751 |
| A | HOH784 |
| site_id | AC3 |
| Number of Residues | 6 |
| Details | binding site for residue NO2 A 403 |
| Chain | Residue |
| A | ARG232 |
| A | SER234 |
| A | LEU246 |
| A | PHE248 |
| A | HEM401 |
| A | HOH566 |
| site_id | AC4 |
| Number of Residues | 24 |
| Details | binding site for residue HEM B 401 |
| Chain | Residue |
| B | ASP137 |
| B | VAL142 |
| B | GLY144 |
| B | THR145 |
| B | GLU146 |
| B | GLN174 |
| B | TRP176 |
| B | HIS178 |
| B | ARG197 |
| B | HIS215 |
| B | VAL219 |
| B | ASP220 |
| B | ARG232 |
| B | LEU246 |
| B | PHE248 |
| B | GLN261 |
| B | MET265 |
| B | MET276 |
| B | THR280 |
| B | NO2405 |
| B | HOH517 |
| B | HOH592 |
| B | HOH595 |
| B | HOH622 |
| site_id | AC5 |
| Number of Residues | 8 |
| Details | binding site for residue GOL B 402 |
| Chain | Residue |
| A | GLU156 |
| A | VAL157 |
| A | LYS161 |
| A | CYS252 |
| A | ASN257 |
| B | ASP224 |
| B | HOH542 |
| B | HOH647 |
| site_id | AC6 |
| Number of Residues | 10 |
| Details | binding site for residue GOL B 403 |
| Chain | Residue |
| A | ASP224 |
| A | HOH529 |
| B | GLU156 |
| B | VAL157 |
| B | LYS161 |
| B | CYS252 |
| B | ARG254 |
| B | ASN257 |
| B | HOH580 |
| B | HOH693 |
| site_id | AC7 |
| Number of Residues | 6 |
| Details | binding site for residue MG B 404 |
| Chain | Residue |
| B | ASP220 |
| B | HOH505 |
| B | HOH517 |
| B | HOH592 |
| B | HOH741 |
| B | HOH852 |
| site_id | AC8 |
| Number of Residues | 6 |
| Details | binding site for residue NO2 B 405 |
| Chain | Residue |
| B | ARG232 |
| B | SER234 |
| B | LEU246 |
| B | PHE248 |
| B | HEM401 |
| B | HOH586 |
