<prompt> Answer this question truthfullyIn biochemistry, what is the role of S-adenosylmethionine SAM as a carrier molecule?  <response>: <reason> S-adenosylmethionine SAM acts as a carrier molecule in its activated form, carrying CH3 methyl groups during various biochemical reactions. This coenzyme is involved in numerous methylation reactions, including the methylation of DNA, RNA, proteins, and other molecules in the body. 