Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 17 |
| Details | binding site for residue HEM A 401 |
| Chain | Residue |
| A | GLY47 |
| A | THR195 |
| A | THR204 |
| A | ALA205 |
| A | ALA206 |
| A | TYR225 |
| A | ACT402 |
| A | HOH502 |
| A | HOH507 |
| A | THR72 |
| A | TYR87 |
| A | GLN88 |
| A | ARG89 |
| A | LEU190 |
| A | HIS192 |
| A | THR193 |
| A | THR193 |
| site_id | AC2 |
| Number of Residues | 6 |
| Details | binding site for residue ACT A 402 |
| Chain | Residue |
| A | LEU190 |
| A | HIS192 |
| A | SER244 |
| A | ALA279 |
| A | HEM401 |
| A | HOH514 |
| site_id | AC3 |
| Number of Residues | 5 |
| Details | binding site for residue SO4 A 403 |
| Chain | Residue |
| A | SER98 |
| A | THR229 |
| A | THR230 |
| A | HOH521 |
| B | ARG161 |
| site_id | AC4 |
| Number of Residues | 16 |
| Details | binding site for residue HEM B 401 |
| Chain | Residue |
| B | GLY47 |
| B | THR71 |
| B | THR72 |
| B | TYR87 |
| B | GLN88 |
| B | ARG89 |
| B | HIS192 |
| B | THR195 |
| B | THR204 |
| B | ALA205 |
| B | ALA206 |
| B | TYR225 |
| B | ACT402 |
| B | HOH517 |
| B | HOH530 |
| B | HOH612 |
| site_id | AC5 |
| Number of Residues | 7 |
| Details | binding site for residue ACT B 402 |
| Chain | Residue |
| B | PHE188 |
| B | LEU190 |
| B | HIS192 |
| B | SER244 |
| B | ALA279 |
| B | HEM401 |
| B | HOH539 |
| site_id | AC6 |
| Number of Residues | 4 |
| Details | binding site for residue SO4 B 403 |
| Chain | Residue |
| B | ARG185 |
| B | ARG216 |
| B | GLN220 |
| B | HOH509 |
| site_id | AC7 |
| Number of Residues | 3 |
| Details | binding site for residue SO4 B 404 |
| Chain | Residue |
| B | ARG298 |
| B | ARG299 |
| B | ASP302 |
