Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 17 |
| Details | BINDING SITE FOR RESIDUE SAH A 300 |
| Chain | Residue |
| A | ARG25 |
| A | SER104 |
| A | MET105 |
| A | GLU121 |
| A | GLY122 |
| A | ALA123 |
| A | ASN126 |
| A | HOH306 |
| A | HOH334 |
| A | GLN26 |
| A | GLY54 |
| A | CYS55 |
| A | GLY56 |
| A | GLN60 |
| A | ASP76 |
| A | PHE77 |
| A | PHE81 |
| site_id | AC2 |
| Number of Residues | 18 |
| Details | BINDING SITE FOR RESIDUE SAH B 300 |
| Chain | Residue |
| B | ARG25 |
| B | GLN26 |
| B | GLY54 |
| B | GLY56 |
| B | GLN60 |
| B | ASP76 |
| B | PHE77 |
| B | PHE81 |
| B | GLY103 |
| B | SER104 |
| B | MET105 |
| B | GLU121 |
| B | GLY122 |
| B | ALA123 |
| B | ASN126 |
| B | HOH271 |
| B | HOH276 |
| B | HOH309 |
| site_id | AC3 |
| Number of Residues | 20 |
| Details | BINDING SITE FOR RESIDUE SAH C 300 |
| Chain | Residue |
| C | ARG25 |
| C | GLN26 |
| C | GLY27 |
| C | GLY54 |
| C | CYS55 |
| C | GLY56 |
| C | GLN60 |
| C | ASP76 |
| C | PHE77 |
| C | PHE81 |
| C | GLY103 |
| C | SER104 |
| C | MET105 |
| C | GLU121 |
| C | GLY122 |
| C | ALA123 |
| C | ASN126 |
| C | HOH272 |
| C | HOH281 |
| C | HOH288 |
| site_id | AC4 |
| Number of Residues | 19 |
| Details | BINDING SITE FOR RESIDUE SAH D 300 |
| Chain | Residue |
| D | ARG25 |
| D | GLN26 |
| D | GLY27 |
| D | GLY54 |
| D | CYS55 |
| D | GLY56 |
| D | GLN60 |
| D | ASP76 |
| D | PHE77 |
| D | PHE81 |
| D | GLY103 |
| D | SER104 |
| D | MET105 |
| D | GLU121 |
| D | GLY122 |
| D | ALA123 |
| D | ASN126 |
| D | HOH277 |
| D | HOH299 |
