Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 3 |
| Details | binding site for residue SO4 A 201 |
| Chain | Residue |
| A | ASN72 |
| A | LEU75 |
| A | HOH332 |
| site_id | AC2 |
| Number of Residues | 8 |
| Details | binding site for residue NHE A 202 |
| Chain | Residue |
| B | ALA70 |
| B | THR71 |
| A | VAL34 |
| A | HIS91 |
| A | HIS119 |
| A | GLU120 |
| A | HOH304 |
| A | HOH317 |
| site_id | AC3 |
| Number of Residues | 4 |
| Details | binding site for residue SO4 A 203 |
| Chain | Residue |
| A | VAL155 |
| A | PHE156 |
| A | ASP157 |
| A | HOH344 |
| site_id | AC4 |
| Number of Residues | 4 |
| Details | binding site for residue SO4 B 201 |
| Chain | Residue |
| B | ASN72 |
| B | LYS76 |
| B | EDO202 |
| B | HOH314 |
| site_id | AC5 |
| Number of Residues | 4 |
| Details | binding site for residue EDO B 202 |
| Chain | Residue |
| A | HIS45 |
| A | GLY46 |
| B | ASN72 |
| B | SO4201 |
| site_id | AC6 |
| Number of Residues | 8 |
| Details | binding site for residue NHE B 203 |
| Chain | Residue |
| B | VAL34 |
| B | GLY47 |
| B | VAL82 |
| B | GLN118 |
| B | HIS119 |
| B | GLU120 |
| B | HOH312 |
| B | HOH322 |
| site_id | AC7 |
| Number of Residues | 7 |
| Details | binding site for residue SO4 B 204 |
| Chain | Residue |
| B | VAL155 |
| B | PHE156 |
| B | ASP157 |
| B | LEU160 |
| B | HOH306 |
| B | HOH332 |
| B | HOH347 |
