Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 7 |
| Details | binding site for residue PG4 A 301 |
| Chain | Residue |
| A | ASN21 |
| A | ASN25 |
| A | GLU28 |
| A | LEU41 |
| A | ASN70 |
| A | LYS75 |
| A | HOH407 |
| site_id | AC2 |
| Number of Residues | 10 |
| Details | binding site for residue PG4 A 302 |
| Chain | Residue |
| A | TYR37 |
| A | LYS79 |
| A | LEU80 |
| A | GLU117 |
| A | ILE120 |
| A | ASP121 |
| A | ILE124 |
| A | LYS156 |
| A | ALA30 |
| A | ASP33 |
| site_id | AC3 |
| Number of Residues | 7 |
| Details | binding site for residue PG4 A 303 |
| Chain | Residue |
| A | ARG58 |
| A | TRP59 |
| A | TYR77 |
| A | GLU107 |
| A | ASN111 |
| A | ASN133 |
| A | LYS136 |
| site_id | AC4 |
| Number of Residues | 4 |
| Details | binding site for residue PG4 A 304 |
| Chain | Residue |
| A | THR115 |
| A | ASN119 |
| A | GLU203 |
| A | LYS206 |
