Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 19 |
| Details | binding site for residue CTP A 1001 |
| Chain | Residue |
| A | LYS159 |
| A | ASN298 |
| A | ASP329 |
| A | MG1004 |
| A | HOH1123 |
| A | HOH1124 |
| A | HOH1131 |
| A | HOH1148 |
| A | HOH1150 |
| B | G600 |
| C | A701 |
| A | ARG163 |
| A | ARG174 |
| A | TYR234 |
| A | GLY236 |
| A | TYR237 |
| A | ASP238 |
| A | SER289 |
| A | THR294 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | binding site for residue ZN A 1002 |
| Chain | Residue |
| A | HIS271 |
| A | HIS273 |
| A | CYS282 |
| A | GLU343 |
| site_id | AC3 |
| Number of Residues | 5 |
| Details | binding site for residue SO4 A 1003 |
| Chain | Residue |
| A | CYS212 |
| A | ASN213 |
| A | THR216 |
| A | PHE217 |
| A | LYS220 |
| site_id | AC4 |
| Number of Residues | 4 |
| Details | binding site for residue MG A 1004 |
| Chain | Residue |
| A | TYR234 |
| A | ASP329 |
| A | CTP1001 |
| A | HOH1197 |
| site_id | AC5 |
| Number of Residues | 4 |
| Details | binding site for residue MG A 1005 |
| Chain | Residue |
| A | ASP330 |
| A | THR373 |
| A | HOH1145 |
| A | HOH1209 |
| site_id | AC6 |
| Number of Residues | 6 |
| Details | binding site for residue GOL B 701 |
| Chain | Residue |
| A | CYS212 |
| A | TYR327 |
| A | ARG377 |
| B | U603 |
| B | C604 |
| C | G700 |
