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Updated: Sep 23, 2025

From a Natural Product to Its Biosynthetic Gene Cluster: A Demonstration Using Polyketomycin from Streptomyces diastatochromogenes Tü6028
Published on: January 13, 2017
Heronamides G-L, polyene macrolactams from Streptomyces niveus
1Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University Shenyang 110819 People's Republic of China hanli@mail.neu.edu.cn huangxs@mail.neu.edu.cn.
Abstract:
Six new polyene macrolactams, heronamides G-L (1-6), one new polyenoic acid derivative, niveamide B (10), together with four known compounds, BE-14106-6 (7), BE-14106 (8), GT32-B (9), and niveamide (11), were isolated from the fermentation broth of Streptomyces niveus. Their planar structures were elucidated by detailed analysis of spectroscopic data. The absolute configurations of compounds 1-6 were determined by calculated ECD spectra and analysis of the possible biosynthetic pathways. Compounds 1-6 and 8-11 did not exhibit any significant antimicrobial activities, cytotoxicities, or inhibitory effects on lipopolysaccharide-induced NO production in BV2 microglial cells.
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