Bibliografisk träff 2007-03-27 Molecular cloning and characterization of tetrahydroprotoberberine cis-N-methyltransferase, an enzyme involved in alkaloid biosynthesis in opium poppy. Liscombe DK, Facchini PJ. J Biol Chem · research support, non-u.s. gov't; journal article · DOI 10.1074/jbc.m611908200