Selenomethionine

Selenomethionine (Seleno-DL-methionine, DL-Selenomethionine) is a naturally occurring amino acid containing selenium. Selenomethionine (SeMet) can substitute for methionine (Met) during protein synthesis in a non-specific manner. Due to the significant differences in their redox properties, the incorporation of SeMet in place of Met may adversely impact protein function.