释义 |
methionine synthase
me·thi·o·nine syn·thasetetrahydropteroylglutamate methyltransferase; methionine-homocysteine methyltransferase; an enzyme that catalyzes the reaction of N5-methyltetrahydrofolate with l-homocysteine to form tetrahydrofolate and l-methionine; a cobalamin-requiring enzyme; a deficiency of this enzyme results in an accumulation of l-homocysteine and neurological abnormalities. Synonym(s): tetrahydrofolate methyltransferasemethionine synthase (1) 5-Methyltetrahydrofolate-homocysteine S-methyltransferase, EC 2.1.1.13. (2) O-Acetylhomoserine (thiol)-lyase, EC 4.2.99.10. |