Functional Information from PDB Data
| site_id | AC1 | 
| Number of Residues | 21 | 
| Details | binding site for residue SAH A 400 | 
| Chain | Residue | 
| A | MET19 | 
| A | PHE134 | 
| A | TYR135 | 
| A | SER150 | 
| A | TRP151 | 
| A | ALA152 | 
| A | TRP155 | 
| A | OCA401 | 
| A | HOH558 | 
| A | HOH594 | 
| A | HOH622 | 
| A | TYR24 | 
| A | HOH627 | 
| A | HOH628 | 
| A | LEU35 | 
| A | GLY64 | 
| A | ALA66 | 
| A | ASN70 | 
| A | ASP98 | 
| A | VAL99 | 
| A | SER133 | 
| site_id | AC2 | 
| Number of Residues | 8 | 
| Details | binding site for residue OCA A 401 | 
| Chain | Residue | 
| A | TYR24 | 
| A | GLN31 | 
| A | TRP151 | 
| A | GLN154 | 
| A | TRP155 | 
| A | MET214 | 
| A | PHE311 | 
| A | SAH400 | 
| site_id | AC3 | 
| Number of Residues | 21 | 
| Details | binding site for residue SAH B 400 | 
| Chain | Residue | 
| B | MET19 | 
| B | TYR24 | 
| B | LEU35 | 
| B | GLY64 | 
| B | ALA66 | 
| B | ASN70 | 
| B | ASP98 | 
| B | VAL99 | 
| B | SER133 | 
| B | PHE134 | 
| B | TYR135 | 
| B | SER150 | 
| B | TRP151 | 
| B | ALA152 | 
| B | TRP155 | 
| B | OCA401 | 
| B | HOH521 | 
| B | HOH552 | 
| B | HOH557 | 
| B | HOH581 | 
| B | HOH624 | 
| site_id | AC4 | 
| Number of Residues | 7 | 
| Details | binding site for residue OCA B 401 | 
| Chain | Residue | 
| B | TYR24 | 
| B | GLN31 | 
| B | TRP151 | 
| B | GLN154 | 
| B | TRP155 | 
| B | PHE311 | 
| B | SAH400 |