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24-methylenesterol C-methyltransferase

From Wikipedia, the free encyclopedia
24-methylenesterol C-methyltransferase
Identifiers
EC no.2.1.1.143
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

In enzymology, a 24-methylenesterol C-methyltransferase (EC 2.1.1.143) is an enzyme that catalyzes the chemical reaction

S-adenosyl-L-methionine + 24-methylenelophenol S-adenosyl-L-homocysteine + (Z)-24-ethylidenelophenol

Thus, the two substrates of this enzyme are S-adenosyl methionine and 24-Methylenelophenol, whereas its two products are S-adenosylhomocysteine and (Z)-24-ethylidenelophenol.

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:24-methylenelophenol C-methyltransferase. Other names in common use include SMT2, and 24-methylenelophenol C-241-methyltransferase. This enzyme participates in the biosynthesis of steroids.

References

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  • Bouvier-Nave P, Husselstein T, Benveniste P (1998). "Two families of sterol methyltransferases are involved in the first and the second methylation steps of plant sterol biosynthesis". Eur. J. Biochem. 256 (1): 88–96. doi:10.1046/j.1432-1327.1998.2560088.x. PMID 9746350.