Biotechnology. Methylating processes. XV

This paper presents the methylative processes in which the C-1 group (methy l or methylen) are linked directly To the sulphur atome. In this connection are presented a few methyle groupe donors as well as a s hot sery thyo-methyl-carboxilyc acids (including also and two alpha-amino-a cid closely related with this sulphur containing carboxilyc Acids). Are also commented various aspects of the metabolic pathways involved in th ese questions.