Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 5 |
| Details | binding site for residue SO4 A 301 |
| Chain | Residue |
| A | HIS23 |
| A | HOH406 |
| A | HOH465 |
| A | HOH531 |
| B | ARG243 |
| site_id | AC2 |
| Number of Residues | 19 |
| Details | binding site for residue SAH A 302 |
| Chain | Residue |
| A | GLY70 |
| A | ASP91 |
| A | SER92 |
| A | SER93 |
| A | ASN113 |
| A | ALA114 |
| A | HIS131 |
| A | CYS133 |
| A | LEU136 |
| A | 5D8303 |
| A | HOH426 |
| A | HOH450 |
| A | HOH453 |
| A | HOH463 |
| A | HOH470 |
| A | GLN18 |
| A | PHE21 |
| A | ASP34 |
| A | GLY68 |
| site_id | AC3 |
| Number of Residues | 17 |
| Details | binding site for residue 5D8 A 303 |
| Chain | Residue |
| A | PHE21 |
| A | TYR33 |
| A | ASP34 |
| A | THR38 |
| A | LEU132 |
| A | GLY135 |
| A | LEU136 |
| A | ASP161 |
| A | LEU162 |
| A | TYR182 |
| A | GLN186 |
| A | SER190 |
| A | MET255 |
| A | PRO256 |
| A | SAH302 |
| A | HOH438 |
| A | HOH470 |
| site_id | AC4 |
| Number of Residues | 10 |
| Details | binding site for residue SO4 B 301 |
| Chain | Residue |
| A | HOH546 |
| B | LYS197 |
| B | LYS267 |
| B | ARG268 |
| B | TYR269 |
| B | THR270 |
| B | HOH402 |
| B | HOH436 |
| B | HOH455 |
| B | HOH477 |
| site_id | AC5 |
| Number of Residues | 21 |
| Details | binding site for residue SAH B 302 |
| Chain | Residue |
| B | GLN18 |
| B | PHE21 |
| B | GLY68 |
| B | GLY70 |
| B | ASP91 |
| B | SER92 |
| B | SER93 |
| B | ASN113 |
| B | ALA114 |
| B | GLU115 |
| B | HIS131 |
| B | LEU136 |
| B | PHE137 |
| B | 5D8303 |
| B | HOH423 |
| B | HOH432 |
| B | HOH442 |
| B | HOH445 |
| B | HOH459 |
| B | HOH467 |
| B | HOH485 |
| site_id | AC6 |
| Number of Residues | 19 |
| Details | binding site for residue 5D8 B 303 |
| Chain | Residue |
| B | PHE21 |
| B | TYR33 |
| B | ASP34 |
| B | THR38 |
| B | LEU132 |
| B | GLY135 |
| B | LEU136 |
| B | ASP161 |
| B | LEU162 |
| B | TYR182 |
| B | LEU183 |
| B | GLN186 |
| B | SER190 |
| B | PHE218 |
| B | MET255 |
| B | PRO256 |
| B | SAH302 |
| B | HOH422 |
| B | HOH467 |
