[(1S)-3-[[(2S,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl-methylsulfonio]-1-carboxypropyl]azanium
S-Adenosylmethionine is a metabolite found in or produced by Escherichia coli (strain K12, MG1655).