Purification of dHG-6-OMT on affinity columns: A, 3-Hydroxy-4-methoxyphenethylamine-Sepharose; B, 3,4-dimethoxyphenethylamine-Sepharose; C, 2′,5′-ADP-Sepharose 4B. Enzyme activity: dHG-6-OMT (▪, pkat/mL); o-diphenol-OMT (●, pkat/mL); cinnamyl alcohol dehydrogenase (▵, pkat/mL × 10−2).