Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 19 |
| Details | binding site for residue HEM A 201 |
| Chain | Residue |
| A | PHE64 |
| A | LEU109 |
| A | PHE114 |
| A | VAL117 |
| A | LEU142 |
| A | VAL145 |
| A | PHE149 |
| A | HOH307 |
| A | HOH311 |
| A | HOH362 |
| A | HOH380 |
| A | PHE65 |
| A | THR72 |
| A | ALA75 |
| A | LYS76 |
| A | PHE80 |
| A | TYR91 |
| A | HIS100 |
| A | HIS102 |
| site_id | AC2 |
| Number of Residues | 7 |
| Details | binding site for residue SO4 A 202 |
| Chain | Residue |
| A | ARG79 |
| A | THR88 |
| A | THR89 |
| A | HIS90 |
| A | TYR91 |
| A | HOH312 |
| A | HOH313 |
| site_id | AC3 |
| Number of Residues | 17 |
| Details | binding site for residue HEM B 201 |
| Chain | Residue |
| A | HOH308 |
| A | HOH347 |
| B | PHE64 |
| B | PHE65 |
| B | THR72 |
| B | LYS76 |
| B | PHE80 |
| B | TYR91 |
| B | HIS100 |
| B | LEU109 |
| B | PHE114 |
| B | VAL145 |
| B | PHE149 |
| B | HOH301 |
| B | HOH322 |
| B | HOH336 |
| B | HOH364 |
| site_id | AC4 |
| Number of Residues | 8 |
| Details | binding site for residue SO4 B 202 |
| Chain | Residue |
| B | ARG79 |
| B | THR88 |
| B | THR89 |
| B | HIS90 |
| B | TYR91 |
| B | HOH316 |
| B | HOH318 |
| B | HOH333 |
