Genome-Based Characterization of Two Prenylation Steps in the Assembly of the Stephacidin and Notoamide Anticancer Agents in a Marine-Derived <i>Aspergillus</i> sp.
作者:Yousong Ding、Jeffrey R. de Wet、James Cavalcoli、Shengying Li、Thomas J. Greshock、Kenneth A. Miller、Jennifer M. Finefield、James D. Sunderhaus、Timothy J. McAfoos、Sachiko Tsukamoto、Robert M. Williams、David H. Sherman
DOI:10.1021/ja1049302
日期:2010.9.15
products belong to a group of prenylated indole alkaloids containing a core bicyclo[2.2.2]diazaoctane ring system. These bioactive fungal secondary metabolites have a range of unusual structural and stereochemical features but their biosynthesis has remained uncharacterized. Herein, we report the first biosynthetic gene cluster for this class of fungal alkaloids based on whole genome sequencing of a marine-derived
Stephacidin 和 notoamide 天然产物属于一组含有核心双环 [2.2.2] 重氮辛烷环系统的异戊二烯化吲哚生物碱。这些具有生物活性的真菌次级代谢物具有一系列不寻常的结构和立体化学特征,但它们的生物合成仍未得到表征。在此,我们报告了基于海洋衍生曲霉的全基因组测序的此类真菌生物碱的第一个生物合成基因簇。详细表征了催化正常和反向异戊二烯转移反应的两种中央途径酶。我们的研究结果确立了异戊二烯化吲哚生物碱结构的早期步骤,并提出了一种合成千金藤碱和诺托酰胺代谢物的方案。