Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 24 |
| Details | binding site for residue HEM A 201 |
| Chain | Residue |
| A | ILE59 |
| A | THR115 |
| A | GLY118 |
| A | LEU122 |
| A | VAL125 |
| A | ARG127 |
| A | PHE141 |
| A | PHE145 |
| A | LEU158 |
| A | MET162 |
| A | TRP168 |
| A | ARG60 |
| A | HOH322 |
| A | HOH334 |
| A | HOH358 |
| A | HOH389 |
| A | HOH446 |
| A | TYR61 |
| A | ALA62 |
| A | LEU70 |
| A | LYS92 |
| A | TRP96 |
| A | PHE108 |
| A | HIS114 |
| site_id | AC2 |
| Number of Residues | 6 |
| Details | binding site for residue SO4 A 202 |
| Chain | Residue |
| A | ARG4 |
| A | HOH307 |
| A | HOH343 |
| A | HOH360 |
| B | ARG4 |
| B | HOH387 |
| site_id | AC3 |
| Number of Residues | 6 |
| Details | binding site for residue GOL A 203 |
| Chain | Residue |
| A | ARG133 |
| A | HOH455 |
| B | ALA56 |
| B | SER57 |
| B | ASN58 |
| B | HOH329 |
| site_id | AC4 |
| Number of Residues | 5 |
| Details | binding site for residue GOL A 204 |
| Chain | Residue |
| A | ILE36 |
| A | ARG128 |
| A | TRP144 |
| A | HOH302 |
| A | HOH319 |
| site_id | AC5 |
| Number of Residues | 24 |
| Details | binding site for residue HEM B 201 |
| Chain | Residue |
| B | ILE59 |
| B | ARG60 |
| B | TYR61 |
| B | ALA62 |
| B | LEU70 |
| B | ILE90 |
| B | LYS92 |
| B | TRP96 |
| B | PHE108 |
| B | HIS114 |
| B | THR115 |
| B | GLY118 |
| B | ARG127 |
| B | PHE141 |
| B | PHE145 |
| B | LEU158 |
| B | LEU159 |
| B | MET162 |
| B | TRP168 |
| B | HOH324 |
| B | HOH338 |
| B | HOH340 |
| B | HOH407 |
| B | HOH435 |
| site_id | AC6 |
| Number of Residues | 4 |
| Details | binding site for residue GOL B 202 |
| Chain | Residue |
| B | ARG128 |
| B | TRP144 |
| B | HOH314 |
| B | HOH401 |
