24-methylenesterol C-methyltransferase
| 24-methylenesterol C-methyltransferase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 2.1.1.143 | ||||||||
| Databases | |||||||||
| BRENDA | enzyme data | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | enzyme entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| Rhea | reactions | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
24-methylenesterol C-methyltransferase (EC 2.1.1.143) is an enzyme that catalyzes the chemical reaction
This is a methylation reaction in which the phytosterol, 24-methylenelophenol, is converted to citrostadienol. The methyl group comes from the cofactor, S-adenosyl methionine (SAM), which becomes S-adenosyl-L-homocysteine (SAH). The enzyme was characterised from Nicotiana tabacum.[1]
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.[2]
References
- ↑ Bouvier-Navé, Pierrette; Husselstein, Tania; Benveniste, Pierre (1998). "Two families of sterol methyltransferases are involved in the first and the second methylation steps of plant sterol biosynthesis". European Journal of Biochemistry. 256 (1): 88–96. doi:10.1046/j.1432-1327.1998.2560088.x. PMID 9746350.
- ↑ Enzyme 2.1.1.143 at KEGG Pathway Database.
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