Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE PG4 A 301 |
| Chain | Residue |
| A | GLY87 |
| A | ASP90 |
| A | LYS105 |
| A | HOH426 |
| site_id | AC2 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE PG4 A 302 |
| Chain | Residue |
| A | ASN85 |
| A | PHE107 |
| A | GLY108 |
| A | ASN110 |
| A | LYS239 |
| site_id | AC3 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE PG4 A 303 |
| Chain | Residue |
| A | LEU132 |
| A | ASP133 |
| A | LEU135 |
| A | LYS181 |
| site_id | AC4 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE PG4 A 304 |
| Chain | Residue |
| A | SER126 |
| A | ASN127 |
| A | ASN127 |
| A | HIS129 |
| A | HIS129 |
| A | LYS130 |
| A | LYS130 |
| A | GLY219 |
| site_id | AC5 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE PE4 A 305 |
| Chain | Residue |
| A | PRO47 |
| A | LYS52 |
| A | GLU73 |
| A | GLN211 |
| A | THR267 |
| A | HOH403 |
