This family includes a range of O-methyltransferases. These enzymes utilise S-adenosyl methionine.

1: Purification of a 40-kilodalton methyltransferase active in the aflatoxin biosynthetic pathway. Keller NP, Dischinger HC, Bhatnagar D, Cleveland TE, Ullah AH; Appl Environ Microbiol 1993;59:479-484. PMID:8434913