Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE SO4 A 501 |
| Chain | Residue |
| A | HIS40 |
| A | LYS45 |
| A | ARG50 |
| A | HOH623 |
| site_id | AC2 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE SO4 B 502 |
| Chain | Residue |
| A | ARG166 |
| B | LYS8 |
| B | THR58 |
| B | GLU59 |
| B | GLY173 |
| site_id | AC3 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE SO4 B 503 |
| Chain | Residue |
| B | LYS45 |
| B | ARG50 |
| B | ARG64 |
| B | HOH565 |
| B | HOH593 |
| B | HOH674 |
| site_id | AC4 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE CL B 505 |
| Chain | Residue |
| B | ARG50 |
| B | ASP127 |
| B | CYS129 |
| B | PRO132 |
| B | ARG158 |
| site_id | AC5 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE CL A 506 |
| Chain | Residue |
| A | ARG50 |
| A | CYS129 |
| A | PRO132 |
| A | ARG158 |
