SAHO is a sulfoxide form of the methyl donor S-(5'-adenosyl)-L-methionine chloride and a substrate for radical SAM enzymes.1 It is reductively cleaved to S-adenosylhomocysteine , 5'-deoxyadenosine , and 5'-thioadenosine sulfenic acid by the radical SAM enzymes NosL or NosN.
References
1.Mandalapu, D., Ji, X., and Zhang, Q.Reductive cleavage of sulfoxide and sulfone by two radical S-adenosyl-L-methionine enzymesBiochemistry58(1)36-39(2019)