Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 10 |
| Details | binding site for residue CIT A 401 |
| Chain | Residue |
| A | LYS318 |
| A | HOH532 |
| A | SER322 |
| A | ASP323 |
| A | PRO338 |
| A | ALA349 |
| A | LYS360 |
| A | LYS374 |
| A | HOH510 |
| A | HOH511 |
| site_id | AC2 |
| Number of Residues | 11 |
| Details | binding site for residue NO3 A 402 |
| Chain | Residue |
| A | LYS318 |
| A | ASN319 |
| A | ASP323 |
| A | PRO352 |
| A | HIS353 |
| A | LYS354 |
| A | LYS378 |
| A | TRP383 |
| A | HOH505 |
| A | HOH518 |
| A | HOH537 |
| site_id | AC3 |
| Number of Residues | 9 |
| Details | binding site for residue NO3 A 403 |
| Chain | Residue |
| A | PRO-4 |
| A | LEU316 |
| A | LYS318 |
| A | PRO321 |
| A | PHE343 |
| A | LYS354 |
| A | LYS378 |
| A | HIS380 |
| A | HOH504 |
| site_id | AC4 |
| Number of Residues | 5 |
| Details | binding site for residue NA A 404 |
| Chain | Residue |
| A | GLN326 |
| A | ILE344 |
| A | SER345 |
| A | GLU346 |
| A | ASN379 |
