methionine adenosyltransferase


me·thi·o·nine a·den·o·syl·trans·fer·ase

an enzyme catalyzing the condensation of l-methionine and ATP, forming S-adenosyl-l-methionine, orthophosphate, and pyrophosphate; a deficiency of the hepatic enzyme will result in hypermethionemia. Synonym(s): methionine-activating enzyme