Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE CA A 1 |
| Chain | Residue |
| A | ASP279 |
| A | ASP280 |
| A | ASN305 |
| A | GLU310 |
| A | CO3694 |
| site_id | AC2 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE MG A 692 |
| Chain | Residue |
| A | ASP312 |
| A | CO3694 |
| A | HOH64 |
| A | HOH80 |
| A | HIS285 |
| A | GLU310 |
| site_id | AC3 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE NHE A 693 |
| Chain | Residue |
| A | ASN305 |
| A | HIS337 |
| A | ARG363 |
| A | GLN398 |
| A | LYS666 |
| A | CO3694 |
| A | HOH868 |
| site_id | AC4 |
| Number of Residues | 11 |
| Details | BINDING SITE FOR RESIDUE CO3 A 694 |
| Chain | Residue |
| A | CA1 |
| A | HOH80 |
| A | ASP279 |
| A | ASP280 |
| A | ASN305 |
| A | GLU310 |
| A | ASP312 |
| A | LYS335 |
| A | HIS337 |
| A | MG692 |
| A | NHE693 |
| site_id | AC5 |
| Number of Residues | 1 |
| Details | BINDING SITE FOR RESIDUE CO3 A 2 |