| N5-methyltetrahydrofolate | An active one-carbon derivative of tetrahydrofolate that participates in the S-methylation of l-homocysteine. (05 Mar 2000) |
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| N5-methyltetrahydrofolate:homocysteine methyltransferase | See: methionine synthase. (05 Mar 2000) |
| 5-methyltetrahydrofolate-homocysteine s-methyltransferase | <enzyme> An enzyme that catalyses 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. Chemical name: 5-Methyltetrahydropteroyltri-L-glutamate:L-homocysteine S-methyltransferase Registry number: EC 2.1.1.13 (12 Dec 1998) |