Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0005507 | molecular_function | copper ion binding |
| A | 0006807 | biological_process | obsolete nitrogen compound metabolic process |
| A | 0016491 | molecular_function | oxidoreductase activity |
| A | 0019333 | biological_process | denitrification pathway |
| A | 0042128 | biological_process | nitrate assimilation |
| A | 0042597 | cellular_component | periplasmic space |
| A | 0046872 | molecular_function | metal ion binding |
| A | 0050421 | molecular_function | nitrite reductase (NO-forming) activity |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE CU A 501 |
| Chain | Residue |
| A | CYS136 |
| A | HIS145 |
| A | GLU150 |
| A | HIS95 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE CU A 502 |
| Chain | Residue |
| A | HIS100 |
| A | HIS135 |
| A | HIS306 |
| A | HOH503 |
| site_id | CU1 |
| Number of Residues | 4 |
| Details | TYPE I SITE |
| Chain | Residue |
| A | HIS95 |
| A | CYS136 |
| A | HIS145 |
| A | GLU150 |
| site_id | CU2 |
| Number of Residues | 4 |
| Details | TYPE II SITE SITE CU2 IS BOUND BETWEEN TWO MONOMERS BY HIS 100, HIS 135 ON ONE AND HIS 306 FROM ANOTHER MONOMER ON THE OTHER. |
| Chain | Residue |
| A | HIS100 |
| A | HIS135 |
| A | HIS306 |
| A | HOH503 |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| A | HIS95 | |
| site_id | SWS_FT_FI2 |
| Number of Residues | 2 |
| Details | BINDING: type 2 copper site |
| Chain | Residue | Details |
| A | HIS100 | |
| A | HIS135 | |
| site_id | SWS_FT_FI3 |
| Number of Residues | 3 |
| Details | BINDING: type 1 copper site |
| Chain | Residue | Details |
| A | CYS136 | |
| A | HIS145 | |
| A | GLU150 | |
| Chain | Residue | Details |
| A | HIS306 | |
| Chain | Residue | Details |
| A | GLN-2 | |
