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 | 18 |
| Details | binding site for residue HEC A 601 |
| Chain | Residue |
| A | ARG46 |
| A | ILE80 |
| A | THR84 |
| A | LEU86 |
| A | GLY87 |
| A | MET88 |
| A | TRP91 |
| A | HOH705 |
| B | GLU8 |
| B | GLN11 |
| A | CYS47 |
| A | CYS50 |
| A | HIS51 |
| A | THR59 |
| A | LYS61 |
| A | LEU63 |
| A | ARG71 |
| A | LEU79 |
| site_id | AC2 |
| Number of Residues | 23 |
| Details | binding site for residue DHE A 602 |
| Chain | Residue |
| A | ARG156 |
| A | HIS182 |
| A | ILE183 |
| A | ARG198 |
| A | ARG225 |
| A | SER226 |
| A | TYR245 |
| A | ALA283 |
| A | ILE285 |
| A | HIS327 |
| A | ARG372 |
| A | PHE425 |
| A | GLY531 |
| A | HOH702 |
| A | HOH707 |
| A | HOH739 |
| A | HOH742 |
| A | HOH757 |
| A | HOH770 |
| A | HOH772 |
| B | TYR10 |
| B | GLN11 |
| B | ALA13 |
| site_id | AC3 |
| Number of Residues | 2 |
| Details | binding site for residue PO4 A 603 |
| Chain | Residue |
| A | HIS335 |
| A | HIS540 |
| site_id | AC4 |
| Number of Residues | 4 |
| Details | binding site for residue PO4 A 604 |
| Chain | Residue |
| A | GLY420 |
| A | GLY421 |
| A | ASN442 |
| A | HOH760 |
| site_id | AC5 |
| Number of Residues | 4 |
| Details | binding site for residue PO4 A 605 |
| Chain | Residue |
| A | ARG156 |
| A | TYR179 |
| A | HOH701 |
| B | HOH728 |
| site_id | AC6 |
| Number of Residues | 2 |
| Details | binding site for residue CL A 606 |
| Chain | Residue |
| A | MET269 |
| B | SER265 |
| site_id | AC7 |
| Number of Residues | 26 |
| Details | binding site for residue DHE B 602 |
| Chain | Residue |
| A | TYR10 |
| A | ALA13 |
| A | HOH725 |
| B | ARG156 |
| B | HIS182 |
| B | ILE183 |
| B | ARG185 |
| B | ARG198 |
| B | ARG225 |
| B | SER226 |
| B | TYR245 |
| B | ALA283 |
| B | ILE285 |
| B | HIS327 |
| B | ARG372 |
| B | PHE425 |
| B | GLY531 |
| B | PHE533 |
| B | HOH702 |
| B | HOH708 |
| B | HOH714 |
| B | HOH716 |
| B | HOH719 |
| B | HOH732 |
| B | HOH735 |
| B | HOH740 |
| site_id | AC8 |
| Number of Residues | 5 |
| Details | binding site for residue PO4 B 603 |
| Chain | Residue |
| B | GLY420 |
| B | GLY421 |
| B | ASN442 |
| B | PRO443 |
| B | HOH747 |
| site_id | AC9 |
| Number of Residues | 4 |
| Details | binding site for residue PO4 B 604 |
| Chain | Residue |
| A | HOH741 |
| B | ARG156 |
| B | TYR179 |
| B | HOH706 |
| site_id | AD1 |
| Number of Residues | 3 |
| Details | binding site for residue CL B 605 |
| Chain | Residue |
| A | SER265 |
| B | GLY268 |
| B | MET269 |
| site_id | AD2 |
| Number of Residues | 24 |
| Details | binding site for Di-peptide HEC B 601 and CYS B 50 |
| Chain | Residue |
| B | GLY57 |
| B | ALA58 |
| B | THR59 |
| B | LYS61 |
| B | LEU63 |
| B | ARG71 |
| B | LEU76 |
| B | LEU79 |
| B | ILE80 |
| B | THR84 |
| B | LEU86 |
| B | GLY87 |
| B | MET88 |
| B | TRP91 |
| B | ILE109 |
| B | ARG281 |
| A | GLU8 |
| A | GLN11 |
| B | ARG46 |
| B | CYS47 |
| B | ALA48 |
| B | GLY49 |
| B | HIS51 |
| B | GLY52 |
| site_id | AD3 |
| Number of Residues | 21 |
| Details | binding site for Di-peptide HEC B 601 and CYS B 47 |
| Chain | Residue |
| A | GLU8 |
| A | GLN11 |
| B | TYR43 |
| B | ARG46 |
| B | ALA48 |
| B | GLY49 |
| B | CYS50 |
| B | HIS51 |
| B | THR59 |
| B | LYS61 |
| B | LEU63 |
| B | ARG71 |
| B | LEU76 |
| B | LEU79 |
| B | ILE80 |
| B | THR84 |
| B | LEU86 |
| B | GLY87 |
| B | MET88 |
| B | TRP91 |
| B | ILE109 |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| B | CYS47 | |
| B | CYS50 | |
| A | CYS47 | |
| A | CYS50 | |
| Chain | Residue | Details |
| B | HIS51 | |
| B | MET88 | |
| A | MET88 | |
| A | HIS51 | |
| Chain | Residue | Details |
| A | TYR245 | |
| A | ARG372 | |
| A | GLN483 | |
| B | ARG71 | |
| B | THR84 | |
| B | ARG225 | |
| B | SER226 | |
| B | TYR245 | |
| B | ARG372 | |
| B | GLN483 | |
| A | ARG225 | |
| A | SER226 | |
| A | ARG71 | |
| A | THR84 | |
| Chain | Residue | Details |
| A | HIS182 | |
| B | HIS182 | |
Catalytic Information from CSA
| site_id | MCSA1 |
| Number of Residues | 6 |
| Details | M-CSA 903 |
| Chain | Residue | Details |
| A | CYS47 | covalently attached |
| A | CYS50 | covalently attached |
| A | HIS51 | metal ligand |
| A | MET88 | metal ligand |
| A | HIS327 | electrostatic stabiliser |
| A | HIS369 | electrostatic stabiliser |
| site_id | MCSA2 |
| Number of Residues | 6 |
| Details | M-CSA 903 |
| Chain | Residue | Details |
| B | CYS47 | covalently attached |
| B | CYS50 | covalently attached |
| B | HIS51 | metal ligand |
| B | MET88 | metal ligand |
| B | HIS327 | electrostatic stabiliser |
| B | HIS369 | electrostatic stabiliser |
