The Enzyme Database

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Accepted name: betaine—homocysteine S-methyltransferase
Reaction: betaine + L-homocysteine = dimethylglycine + L-methionine
Glossary: betaine = glycine betaine = N,N,N-trimethylglycine = N,N,N-trimethylammonioacetate
Other name(s): betaine-homocysteine methyltransferase; betaine-homocysteine transmethylase
Systematic name: trimethylammonioacetate:L-homocysteine S-methyltransferase
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 9029-78-1
1.  Klee, W.A., Richards, H.H. and Cantoni, G.L. The synthesis of methionine by enzymic transmethylation. VII. Existence of two separate homocysteine methylpherases on mammalian liver. Biochim. Biophys. Acta 54 (1961) 157–164. [DOI] [PMID: 14456704]
[EC created 1961]

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