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 |
| B | 0005576 | cellular_component | extracellular region |
| B | 0042311 | biological_process | vasodilation |
| B | 0046872 | molecular_function | metal ion binding |
| B | 0051381 | molecular_function | histamine binding |
| B | 0070026 | molecular_function | nitric oxide binding |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 15 |
| Details | BINDING SITE FOR RESIDUE HEM A 185 |
| Chain | Residue |
| A | TYR28 |
| A | LEU123 |
| A | LYS125 |
| A | LEU130 |
| A | NO186 |
| A | HOH312 |
| A | HOH380 |
| A | TYR40 |
| A | LEU44 |
| A | LEU57 |
| A | HIS59 |
| A | ASP70 |
| A | PHE86 |
| A | LYS88 |
| A | TYR105 |
| site_id | AC2 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE NO A 186 |
| Chain | Residue |
| A | LEU133 |
| A | HEM185 |
| site_id | AC3 |
| Number of Residues | 13 |
| Details | BINDING SITE FOR RESIDUE HEM B 185 |
| Chain | Residue |
| B | TYR28 |
| B | ASP34 |
| B | TYR40 |
| B | LEU57 |
| B | HIS59 |
| B | PHE68 |
| B | ASP70 |
| B | PHE86 |
| B | LYS88 |
| B | TYR105 |
| B | LEU123 |
| B | LYS125 |
| B | NO186 |
| site_id | AC4 |
| Number of Residues | 1 |
| Details | BINDING SITE FOR RESIDUE NO B 186 |
| site_id | AC5 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE PHS A 187 |
| Chain | Residue |
| A | ASP113 |
| A | PO4188 |
| site_id | AC6 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE PO4 A 188 |
| Chain | Residue |
| A | ASP113 |
| A | SER115 |
| A | LYS148 |
| A | HOH326 |
| A | HOH402 |
| site_id | AC7 |
| Number of Residues | 1 |
| Details | BINDING SITE FOR RESIDUE PHS B 187 |
| site_id | AC8 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE PO4 B 188 |
| Chain | Residue |
| B | ASP113 |
| B | SER115 |
| B | SER116 |
| B | LYS148 |
| B | HOH404 |
| B | HOH409 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 2 |
| Details | BINDING: proximal binding residue |
| Chain | Residue | Details |
| A | HIS59 | |
| B | HIS59 | |
