Cycloartenol 24-C-methyltransferase

In enzymology, a cycloartenol 24-C-methyltransferase (EC 2.1.1.142) is an enzyme that catalyzes the chemical reaction

S-adenosyl-L-methionine + cycloartenol ${\displaystyle \rightleftharpoons }$ S-adenosyl-L-homocysteine + (24R)-24-methylcycloart-25-en-3beta-ol

cycloartenol 24-C-methyltransferase
Identifiers
EC no.	2.1.1.142
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / QuickGO
Search PMC articles PubMed articles NCBI proteins

Thus, the two substrates of this enzyme are S-adenosyl methionine and cycloartenol, whereas its two products are S-adenosylhomocysteine and (24R)-24-methylcycloart-25-en-3beta-ol.

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:cycloartenol 24-C-methyltransferase. This enzyme is also called sterol C-methyltransferase.