Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0009055 | molecular_function | electron transfer activity |
| A | 0016491 | molecular_function | oxidoreductase activity |
| A | 0020037 | molecular_function | heme binding |
| A | 0042597 | cellular_component | periplasmic space |
| A | 0046872 | molecular_function | metal ion binding |
| A | 0050418 | molecular_function | hydroxylamine reductase activity |
| A | 0050421 | molecular_function | nitrite reductase (NO-forming) activity |
| B | 0009055 | molecular_function | electron transfer activity |
| B | 0016491 | molecular_function | oxidoreductase activity |
| B | 0020037 | molecular_function | heme binding |
| B | 0042597 | cellular_component | periplasmic space |
| B | 0046872 | molecular_function | metal ion binding |
| B | 0050418 | molecular_function | hydroxylamine reductase activity |
| B | 0050421 | molecular_function | nitrite reductase (NO-forming) activity |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE SO4 A 621 |
| Chain | Residue |
| A | TYR308 |
| A | ARG354 |
| A | LYS372 |
| site_id | AC2 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE SO4 B 621 |
| Chain | Residue |
| B | TYR308 |
| B | ARG354 |
| B | LYS372 |
| B | HOH2279 |
| B | HOH2407 |
| site_id | AC3 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE SO4 B 622 |
| Chain | Residue |
| B | GLY440 |
| B | ASN461 |
| B | HOH2305 |
| B | HOH2315 |
| B | GLY439 |
| site_id | AC4 |
| Number of Residues | 14 |
| Details | BINDING SITE FOR RESIDUE HEC A 601 |
| Chain | Residue |
| A | HIS17 |
| A | ARG64 |
| A | CYS65 |
| A | CYS68 |
| A | HIS69 |
| A | GLY78 |
| A | LYS79 |
| A | LEU81 |
| A | LEU89 |
| A | TYR93 |
| A | LEU94 |
| A | PHE97 |
| A | SER102 |
| A | PRO103 |
| site_id | AC5 |
| Number of Residues | 28 |
| Details | BINDING SITE FOR RESIDUE DHE A 602 |
| Chain | Residue |
| A | TYR25 |
| A | PRO27 |
| A | SER28 |
| A | MET106 |
| A | ARG174 |
| A | HIS200 |
| A | ILE201 |
| A | ARG203 |
| A | ARG216 |
| A | ARG243 |
| A | SER244 |
| A | ILE245 |
| A | TYR263 |
| A | ALA302 |
| A | ILE303 |
| A | HIS345 |
| A | ARG391 |
| A | PHE444 |
| A | GLN507 |
| A | TRP522 |
| A | THR554 |
| A | GLY555 |
| A | PHE557 |
| A | HOH2002 |
| A | HOH2189 |
| A | HOH2385 |
| A | HOH2386 |
| A | HOH2387 |
| site_id | AC6 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE HEC B 601 |
| Chain | Residue |
| B | ARG64 |
| B | CYS65 |
| B | CYS68 |
| B | HIS69 |
| B | THR77 |
| B | GLY78 |
| B | LYS79 |
| B | TYR93 |
| B | LEU94 |
| B | PHE97 |
| B | ILE98 |
| B | ALA104 |
| B | GLY105 |
| B | MET106 |
| B | TRP109 |
| B | HOH2402 |
| site_id | AC7 |
| Number of Residues | 26 |
| Details | BINDING SITE FOR RESIDUE DHE B 602 |
| Chain | Residue |
| B | PRO27 |
| B | SER28 |
| B | ARG174 |
| B | HIS200 |
| B | ILE201 |
| B | ARG203 |
| B | ARG216 |
| B | ARG243 |
| B | SER244 |
| B | ILE245 |
| B | TYR263 |
| B | ALA302 |
| B | ILE303 |
| B | HIS345 |
| B | ARG391 |
| B | PHE444 |
| B | GLN507 |
| B | TRP522 |
| B | GLY555 |
| B | PHE557 |
| B | OXY603 |
| B | HOH2189 |
| B | HOH2403 |
| B | HOH2404 |
| B | HOH2405 |
| B | HOH2406 |
| site_id | AC8 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE OXY B 603 |
| Chain | Residue |
| B | DHE602 |
| B | HIS345 |
| B | HIS388 |
| site_id | AC9 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE GOL A 611 |
| Chain | Residue |
| A | PHE395 |
| A | VAL396 |
| A | PRO449 |
| A | SER451 |
| A | ILE475 |
| A | HOH2298 |
| A | HOH2388 |
| site_id | BC1 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE GOL B 612 |
| Chain | Residue |
| B | ASP30 |
| B | ARG174 |
| B | TYR197 |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| A | HIS17 | |
| A | TYR25 | |
| A | HIS69 | |
| A | HIS200 | |
| B | HIS17 | |
| B | TYR25 | |
| B | HIS69 | |
| B | HIS200 | |
| Chain | Residue | Details |
| A | SER28 | |
| A | ARG391 | |
| A | GLN507 | |
| A | THR554 | |
| B | SER28 | |
| B | LYS79 | |
| B | TYR93 | |
| B | TRP109 | |
| B | ARG174 | |
| B | ARG203 | |
| B | ARG216 | |
| A | LYS79 | |
| B | ARG243 | |
| B | TYR263 | |
| B | ARG391 | |
| B | GLN507 | |
| B | THR554 | |
| A | TYR93 | |
| A | TRP109 | |
| A | ARG174 | |
| A | ARG203 | |
| A | ARG216 | |
| A | ARG243 | |
| A | TYR263 | |
| Chain | Residue | Details |
| A | CYS65 | |
| A | CYS68 | |
| B | CYS65 | |
| B | CYS68 | |
Catalytic Information from CSA
| site_id | CSA1 |
| Number of Residues | 2 |
| Details | Annotated By Reference To The Literature 1nir |
| Chain | Residue | Details |
| A | HIS388 | |
| A | HIS345 | |
| site_id | CSA2 |
| Number of Residues | 2 |
| Details | Annotated By Reference To The Literature 1nir |
| Chain | Residue | Details |
| B | HIS388 | |
| B | HIS345 | |
