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首页> 外文期刊>The Journal of Antibiotics: An International Journal >New polyene macrolide family produced by submerged culture of Streptomyces durmitorensis.
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New polyene macrolide family produced by submerged culture of Streptomyces durmitorensis.

机译:杜伦链霉菌的深层培养产生了新的多烯大环内酯类。

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摘要

A new polyene macrolide family, closely related to the pentaene macrolide antibiotic roflamycoin, was isolated from the both fermentation broth and biomass of Streptomyces durmitorensis wild-type strain MS405. The main compound was identified by NMR and Fourier transform ion cyclotron resonance mass spectrometry as 32,33-didehydroroflamycoin (1; DDHR). Additional four structurally related compounds were determined solely by MS analysis. DDHR induces cell death by apoptosis in various cancer cell lines as demonstrated by DNA fragmentation. Striking feature of DDHR is its internal fluorescence allowing visualization of labeled plasma membranes and internal membrane structures.
机译:从杜氏链霉菌野生型菌株MS405的发酵液和生物量中分离出与五烯大环内酯类抗生素roflamycoin密切相关的新的多烯大环内酯类。通过NMR和傅立叶变换离子回旋共振质谱法鉴定出主要化合物为32,33-二氢氢化弗罗西币(1; DDHR)。仅通过MS分析即可确定另外四个与结构相关的化合物。如DNA片段所示,DDHR通过各种癌细胞系的凋亡诱导细胞死亡。 DDHR的显着特征是其内部荧光,可以可视化标记的质膜和内部膜结构。

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