- References
| Name = 24-methylenesterol C-methyltransferase
| EC_number = 2.1.1.143
| CAS_number =
| IUBMB_EC_number = 2/1/1/143
| GO_code = 0030797
| image =
| width =
| caption =
}}
In enzymology, a 24-methylenesterol C-methyltransferase ({{EC number|2.1.1.143}}) is an enzyme that catalyzes the chemical reaction
S-adenosyl-L-methionine + 24-methylenelophenolS-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
- {{cite journal |vauthors=Bouvier-Nave P, Husselstein T, Benveniste P | date = 1998 | title = Two families of sterol methyltransferases are involved in the first and the second methylation steps of plant sterol biosynthesis | journal = Eur. J. Biochem. | volume = 256 | pages = 88–96 | pmid = 9746350 | doi = 10.1046/j.1432-1327.1998.2560088.x | issue = 1 }}
2 : EC 2.1.1|Enzymes of unknown structure