Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 14 |
| Details | BINDING SITE FOR RESIDUE ET1 A 1 |
| Chain | Residue |
| A | PHE246 |
| A | MET417 |
| A | LEU433 |
| A | TYR437 |
| A | HOH444 |
| A | HOH534 |
| A | CYS249 |
| A | THR253 |
| A | HIS287 |
| A | PHE291 |
| A | PHE324 |
| A | ILE327 |
| A | LYS331 |
| A | HIS413 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE 1BO A 3 |
| Chain | Residue |
| A | THR261 |
| A | LEU282 |
| B | PHE274 |
| B | LEU275 |
| site_id | AC3 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE 1BO A 4 |
| Chain | Residue |
| A | LEU275 |
| B | THR261 |
| site_id | AC4 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE 1BO A 6 |
| Chain | Residue |
| A | LEU219 |
| A | TRP220 |
| A | ILE241 |
| site_id | AC5 |
| Number of Residues | 19 |
| Details | BINDING SITE FOR RESIDUE ET1 B 2 |
| Chain | Residue |
| B | PHE246 |
| B | CYS249 |
| B | GLN250 |
| B | THR252 |
| B | THR253 |
| B | HIS287 |
| B | ILE290 |
| B | PHE291 |
| B | LEU294 |
| B | PHE324 |
| B | ILE327 |
| B | ILE328 |
| B | LYS331 |
| B | HIS413 |
| B | MET417 |
| B | LEU433 |
| B | TYR437 |
| B | HOH461 |
| B | HOH576 |
