Tags: Enzyme.
In enzymology a 7-methylxanthosine synthase (EC 2.1.1.158) is an enzyme that catalyzes the chemical reactionS-adenosyl-L-methionine + xanthosine S-adenosyl-L-homocysteine + 7-methylxanthosineThus the two substrates of this enzyme are S-adenosyl methionine and xanthosine whereas its two products are S-adenosylhomocysteine and 7-methylxanthosine.This enzyme belongs to the family of transferases specifically those transferring one-carbon group methyltransferases.