A novel type III polyketide synthase (RePKS) from Rhizobium etli produced a heptaketide pyrone using acetyl-CoA and six molecules of malonyl-CoA. Its catalytic efficiency (kcat/Km = 5230 mM−1 min−1) for malonyl CoA was found to be the highest ever reported. Molecular dynamics studies revealed the unique features of RePKS.
一种来自根瘤菌(Rhizobium etli)的新型 III 型多酮合成酶(RePKS)利用乙酰-CoA 和六分子丙二酰-CoA 生成了一种七酮
吡咯烷酮。它对丙二酰 CoA 的催化效率(kcat/Km = 5230 mM-1 min-1)是迄今所报道的最高的。分子动力学研究揭示了 RePKS 的独特之处。