https://www.selleckchem.com/products/agi-6780.html
Tetracyclic triterpenes and steroids are pharmacologically important molecules, and acetylation could improve their bioactivities. In this study, a highly regio- and stereo-specific acetyltransferase, AmAT19, was discovered from Astragalus membranaceus. AmAT19 could selectively catalyze the 6α-OH acetylation of four tetracyclic triterpenes and steroids. The strict selectivity is associated with different orientations of the 6α/β-OH as indicated by molecular docking. Acetylated products 1a, 3a and 4a remarkably increased the inhibitory
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