3A7E      2.80    LIG: DNC       COF: SAM       ION: MG       : CATECHOL O-METHYLTRANSFERASE
3BWM      1.98    LIG: DNC       COF: SAM       ION: MG       : CATECHOL O-METHYLTRANSFERASE
3BWY      1.30    LIG: DNC       COF: SAM       ION: MG       : COMT PROTEIN