An enzyme that catalyzes the formation of methionine by transfer of a methyl group from 5-methyltetrahydrofolate to homocysteine. It requires a cobamide coenzyme. The enzyme can act on mono- or triglutamate derivatives. EC 2.1.1.13.
Also Known As:
Methyltetrahydrofolate Homocysteine Methyltransferase; Methionine Synthase; Vitamin B12-Dependent Methionine Synthase; Vitamin B12-Independent Methionine Synthase; Homocysteine Methyltransferase, Methyltetrahydrofolate; Methyltransferase, Methyltetrahydrofolate Homocysteine; Methyltransferase, Tetrahydropteroylglutamate; S-Methyltransferase, 5-Methyltetrahydrofolate-Homocysteine; Synthase, Methionine; Synthetase, Methionine; Methionine Synthetase; Tetrahydropteroylglutamate Methyltransferase; 5-Methyltetrahydropteroyltri-L-glutamate:L-homocysteine S-methyltransferase