Target intelligence / Profile preview

Sterol 24-C-methyltransferase (SMT)

Target
SMT
Molecular classification
Enzyme, Methyltransferase, Transferase
01

Overview

Sterol 24-C-methyltransferase (SMT) is an enzyme that catalyzes the transfer of a methyl group from S-adenosyl-L-methionine (SAM) to the C-24 position of sterols, a key step in the biosynthesis of ergosterol and other sterols in fungi, protozoa, plants, and some algae. It is not present in mammals, making it a promising drug target for antifungal and antiparasitic therapies. Inhibition of SMT disrupts sterol homeostasis, leading to impaired fungal/protozoal growth and viability.

Other names
Delta24-sterol methyltransferaseZymosterol-24-methyltransferaseSMT1Phytosterol methyltransferaseDelta(24)-methyltransferaseS-Adenosylmethionine:steroldelta(24)-methyltransferase
02

Mechanism of action

Inhibition of sterol biosynthesis

03

Biological functions

Sterol biosynthesisErgosterol biosynthesisMembrane integrity maintenance
04

Disease associations

Fungal infectionsParasitic diseasesAzole resistance
05

Safety considerations

Potential for off-target effects if inhibitors are not highly selective.

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