Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0005576 | cellular_component | extracellular region |
| A | 0042311 | biological_process | vasodilation |
| A | 0046872 | molecular_function | metal ion binding |
| A | 0051381 | molecular_function | histamine binding |
| A | 0070026 | molecular_function | nitric oxide binding |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE CYN A 202 |
| Chain | Residue |
| A | HEM201 |
| A | HOH300 |
| A | HOH502 |
| site_id | AC2 |
| Number of Residues | 18 |
| Details | BINDING SITE FOR RESIDUE HEM A 201 |
| Chain | Residue |
| A | HIS57 |
| A | TYR85 |
| A | LYS96 |
| A | TYR104 |
| A | ILE120 |
| A | LEU132 |
| A | CYN202 |
| A | HOH316 |
| A | HOH456 |
| A | HOH459 |
| A | HOH507 |
| A | HOH528 |
| A | VAL24 |
| A | PHE27 |
| A | VAL34 |
| A | TYR38 |
| A | SER40 |
| A | LEU55 |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| A | HIS57 | |
