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Structure and Biosynthetic Assembly of Gulmirecins, Macrolide Antibiotics from the Predatory Bacterium Pyxidicoccus fallax

机译:掠食性细菌Pyxidicoccus fallax的大环内酯类抗生素Gulmirecins的结构和生物合成

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The gulmirecins constitute a new class of glycosylated macrolides that were isolated from the predatory bacterium Pyxidicoccus fallax HKI 727. Their structures were solved by a combination of NMR spectroscopic experiments and chemical derivatization. Analysis of the annotated gulmirecin gene cluster complemented the configurational as-signment and provided insights into the stereochemical course of the biosynthetic assembly. The gulmirecins exhibit strong activity against staphylococci, including methicillin-resistant Staphylococcus aureus, but no cytotoxic effects on human cells.
机译:甘菊酯类化合物是一类新的糖基化大环内酯类化合物,它们是从掠食性细菌毕赤酵母(Pyxidicoccus fallax HKI 727)中分离出来的。它们的结构通过NMR光谱实验和化学衍生化的结合而得到解决。对带注释的古尔霉素基因簇的分析补充了构型分配,并提供了对生物合成组装体立体化学过程的见解。甲氨蝶呤对葡萄球菌(包括耐甲氧西林的金黄色葡萄球菌)表现出强大的活性,但对人体细胞无细胞毒性作用。

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