Bouvier-Nave P, Husselstein T, Benveniste P.
Two families of sterol methyltransferases are involved in the first and the second methylation steps of plant sterol biosynthesis.
Eur. J. Biochem. 256 88-96 1998
[PubMed: 9746350] http://dx.doi.org/10.1046/j.1432-1327.1998.2560088.x