This domain family is found in bacteria and eukaryotes, and is approximately 110 amino acids in length.Farnesoic acid O-methyl transferase (FAMeT) is the enzyme that catalyses the formation of methyl farnesoate (MF) from farnesoic acid (FA) in the biosynthetic pathway of juvenile hormone (JH).

1: Farnesoic acid O-methyl transferase (FAMeT) isoforms: conserved traits and gene expression patterns related to caste differentiation in the stingless bee, Melipona scutellaris. Vieira CU, Bonetti AM, Simoes ZL, Maranhao AQ, Costa CS, Costa MC, Siquieroli AC, Nunes FM; Arch Insect Biochem Physiol. 2008;67:97-106. PMID:18076110