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Catalysis of the reaction: S-adenosyl-L-methionine + a thiol = S-adenosyl-L-homocysteine + a thioether. Catalysis of the reaction: DNA (containing 6-O-methylguanine) + (protein)-L-cysteine = DNA (without 6-O-methylguanine) + protein S-methyl-L-cysteine. Catalysis of the transfer of a methyl group to an acceptor molecule. Catalysis of the reaction: homocysteine + betaine = L-methionine + dimethylglycine. Catalysis of the reaction: 5-methyltetrahydrofolate + L-homocysteine = tetrahydrofolate + L-methionine. Catalysis of the transfer of a methyl group to the sulfur atom of an acceptor molecule. Catalysis of the reaction: S-adenosyl-L-methionine + a thiopurine = S-adenosyl-L-homocysteine + a thiopurine S-methylether. Catalysis of the reaction: S-adenosyl-L-methionine + dimethyl sulfide = S-adenosyl-L-homocysteine + trimethylsulfonium. Catalysis of the reaction: 5-methyltetrahydropteroyltri-L-glutamate + L-homocysteine = tetrahydropteroyltri-L-glutamate + L-methionine. Catalysis of the reaction: S-adenosyl-L-methionine + L-homocysteine = S-adenosyl-L-homocysteine + L-methionine. Catalysis of the reaction: homocysteine + dimethylsulfonioacetate = L-methionine + S-methylthioglycolate. Catalysis of the reaction: 5-methyl-5,6,7,8-tetrahydromethanopterin + 2-mercaptoethanesulfonate = 5,6,7,8-tetrahydromethanopterin + 2-(methylthio)ethanesulfonate. 2-(methylthio)ethanesulfonate is also known as methyl-CoM. Catalysis of the transfer of a one-carbon group from one compound (donor) to another (acceptor).

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: S-methyltransferase activity
Acc: GO:0008172
Aspect: Molecular Function
Desc: Catalysis of the transfer of a methyl group to the sulfur atom of an acceptor molecule.
Proteins in PDR annotated with:
   This term: 2 [Search]
   Term or descendants: 83 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0008172 - S-methyltransferase activity (interactive image map)
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