Thiol S-methyltransferase

In enzymology, a thiol S-methyltransferase (EC 2.1.1.9) is an enzyme that catalyzes the chemical reaction

S-adenosyl-L-methionine + a thiol S-adenosyl-L-homocysteine + a thioether
thiol S-methyltransferase
Identifiers
EC no.2.1.1.9
CAS no.9029-81-6
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
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PMCarticles
PubMedarticles
NCBIproteins

Thus, the two substrates of this enzyme are S-adenosyl methionine and thiol, whereas its two products are S-adenosylhomocysteine and thioether.

This enzyme belongs to the family of transferases, specifically those transferring one-carbon group methyltransferases. The systematic name of this enzyme class is S-adenosyl-L-methionine:thiol S-methyltransferase. Other names in common use include S-methyltransferase, thiol methyltransferase, and TMT. This enzyme participates in selenoamino acid metabolism.

References

    • Borchardt RT, Cheng CF (1978). "Purification and characterization of rat liver microsomal thiol methyltransferase". Biochim. Biophys. Acta. 522 (2): 340–53. doi:10.1016/0005-2744(78)90068-2. PMID 623768.
    • Bremer J; Greenberg DM (1961). "Enzymic methylation of foreign sulfhydryl compounds". Biochim. Biophys. Acta. 46 (2): 217–224. doi:10.1016/0006-3002(61)90746-6.
    • Weisiger RA, Jakoby WB (1979). "Thiol S-methyltransferase from rat liver". Arch. Biochem. Biophys. 196 (2): 631–7. doi:10.1016/0003-9861(79)90317-5. PMID 485170.


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