Structural insights into catalytic promiscuity of chalcone synthase from Glycine max (L.) Merr.: Coenzyme A-induced alteration of product specificity
Chalcone
Coenzyme A
DOI:
10.1016/j.bbrc.2024.150080
Publication Date:
2024-05-08T07:09:04Z
AUTHORS (16)
ABSTRACT
Catalytic promiscuity of enzymes plays a pivotal role in driving the evolution plant specialized metabolism. Chalcone synthase (CHS) catalyzes production 2',4,4',6'-tetrahydroxychalcone (THC), common precursor flavonoids, from p-coumaroyl-coenzyme A (-CoA) and three malonyl-CoA molecules. CHS has promiscuous product specificity, producing significant amount p-coumaroyltriacetic lactone (CTAL) vitro. However, mechanistic aspects this remain to be clarified. Here, we show that specificity soybean (GmCHS1) is altered by CoA, reaction product, which selectively inhibits THC (IC
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