Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 5 |
| Details | binding site for residue SO4 A 101 |
| Chain | Residue |
| A | LYS4 |
| A | LYS18 |
| B | LYS4 |
| B | LYS18 |
| B | TRP22 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | binding site for residue NH4 A 102 |
| Chain | Residue |
| A | ALA5 |
| A | GLN8 |
| A | GLU9 |
| B | GLU16 |
| site_id | AC3 |
| Number of Residues | 3 |
| Details | binding site for residue SO4 B 101 |
| Chain | Residue |
| B | GLN8 |
| B | LYS11 |
| B | LYS18 |
| site_id | AC4 |
| Number of Residues | 6 |
| Details | binding site for residue NH4 B 102 |
| Chain | Residue |
| A | TRP22 |
| B | ACE0 |
| B | GLY1 |
| B | GLU2 |
| B | LEU3 |
| B | HOH203 |
| site_id | AC5 |
| Number of Residues | 8 |
| Details | binding site for Di-peptide ACE B 0 and GLY B 1 |
| Chain | Residue |
| A | TRP22 |
| B | GLU2 |
| B | LEU3 |
| B | LYS4 |
| B | ALA5 |
| B | ALA21 |
| B | NH4102 |
| B | HOH207 |
