Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE ZN A 255 |
| Chain | Residue |
| A | GLU21 |
| A | HIS22 |
| A | HIS54 |
| A | CL256 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE ZN B 256 |
| Chain | Residue |
| B | GLU21 |
| B | HIS22 |
| B | HIS54 |
| B | CL257 |
| site_id | AC3 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE ZN C 257 |
| Chain | Residue |
| C | HIS22 |
| C | HIS54 |
| C | CL258 |
| C | GLU21 |
| site_id | AC4 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE CL A 256 |
| Chain | Residue |
| A | HIS22 |
| A | THR50 |
| A | ARG51 |
| A | HIS54 |
| A | ZN255 |
| site_id | AC5 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE CL B 257 |
| Chain | Residue |
| B | HIS22 |
| B | THR50 |
| B | ARG51 |
| B | HIS54 |
| B | ZN256 |
| site_id | AC6 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE CL C 258 |
| Chain | Residue |
| C | HIS22 |
| C | THR50 |
| C | ARG51 |
| C | HIS54 |
| C | ZN257 |
