Tags: Enzyme.
In enzymology a [cytochrome-c]-methionine S-methyltransferase (EC 2.1.1.123) is an enzyme that catalyzes the chemical reactionS-adenosyl-L-methionine + [cytochrome c]-methionine S-adenosyl-L-homocysteine + [cytochrome c]-S-methyl-methionineThus the two substrates of this enzyme are S-adenosyl methionine and cytochrome c methionine whereas its two products are S-adenosylhomocysteine and cytochrome c-S-methyl-methionine.This enzyme belongs to the family of transferases specifically those transferring one-carbon group methyltransferases.