Two Biosynthetic Pathways in <i>Jahnella thaxteri</i> for Thaxteramides, Distinct Types of Lipopeptides
作者:Emilia Oueis、Thorsten Klefisch、Nestor Zaburannyi、Ronald Garcia、Alberto Plaza、Rolf Müller
DOI:10.1021/acs.orglett.9b01524
日期:2019.7.19
The structures of five linear lipopeptides, thaxteramides A1, A2, B1, B2, and C isolated from the myxobacterium Jahnella thaxteri, were elucidated. They have a C-terminal common tetrapeptidic Tyr-Gly-beta-Ala-Tyr core but differ in the stereochemistry of the tyrosine units, methylations, the remaining amino acids, and the N-terminal polyketide. In silico analysis of the genome sequence complemented with feeding experiments revealed two distinct hybrid PKS/NRPS gene clusters. Three semisynthesized cyclic analogues were found to inhibit the growth of Gram-positive bacteria.