Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0005576 | cellular_component | extracellular region |
| A | 0016491 | molecular_function | oxidoreductase activity |
| 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 | 17 |
| Details | BINDING SITE FOR RESIDUE HEM A 185 |
| Chain | Residue |
| A | VAL25 |
| A | PHE107 |
| A | LEU123 |
| A | LYS125 |
| A | LYS128 |
| A | LEU133 |
| A | NO2186 |
| A | HOH399 |
| A | HOH408 |
| A | TYR28 |
| A | TYR40 |
| A | LEU57 |
| A | HIS59 |
| A | ASP70 |
| A | PHE86 |
| A | LYS88 |
| A | TYR105 |
| site_id | AC2 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE NO2 A 186 |
| Chain | Residue |
| A | LEU123 |
| A | HEM185 |
| A | HOH416 |
| site_id | AC3 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE NO2 A 187 |
| Chain | Residue |
| A | ASP66 |
| A | THR67 |
| A | PHE68 |
| A | LYS88 |
| A | HOH296 |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| A | HIS59 | |
Catalytic Information from CSA
| site_id | MCSA1 |
| Number of Residues | 3 |
| Details | M-CSA 979 |
| Chain | Residue | Details |
| A | ASP30 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
| A | HIS59 | metal ligand |
| A | LEU130 | hydrogen bond donor |
