An Evolutionary Model Encompassing Substrate Specificity and Reactivity of Type I Polyketide Synthase Thioesterases
作者:Taylor P. A. Hari、Puneet Labana、Meaghan Boileau、Christopher N. Boddy
DOI:10.1002/cbic.201402475
日期:2014.12.15
propose an evolutionary model in which thioesterases from polyketide biosynthesis are by nature non‐selective for the type of chemistry they catalyze, producing a range of metabolites including acids, macrolactones, dimers, and macrodiolides. As one metabolite becomes essential for improving fitness in a particular environment, the thioesterase evolves to enrich for that corresponding reactivity.
乙交酯形成的演变:我们提出了一种演化模型,其中聚酮化合物生物合成中的硫酯酶天生就对它们催化的化学类型没有选择性,产生各种代谢产物,包括酸,大内酯,二聚体和大二醇。由于一种代谢物对于改善特定环境中的适应性至关重要,因此硫酯酶会逐渐进化为富集相应的反应性。