<i>Streptomyces aureorectus</i> DSM 41692 and <i>Streptomyces virens</i> DSM 41465 are producers of the antibiotic nucleocidin and 4′-fluoroadenosine is identified as a co-product
作者:Yawen Chen、Qingzhi Zhang、Xuan Feng、Marta Wojnowska、David O'Hagan
DOI:10.1039/d1ob01898a
日期:——
aureorectus DSM 41692 and Streptomyces virens DSM 41465 as candidate producers of the antibiotic nucleocidin 1. Indeed when these bacterial strains were cultured in a medium supplemented with fluoride (4 mM) they each produced nucleocidin 1 and the previously identified 4′-fluoro-3′-O-β-glucosylated adenosine 2 and its sulfamylated derivative 3. In both of these cases 4′-fluoroadenosine 9 is also identified
基因组同源性和推定的生物合成基因簇的存在将金黄色链霉菌DSM 41692 和Streptomyces virens DSM 41465 确定为抗生素 nucleocidin 1的候选生产者。事实上,当这些细菌菌株在补充有氟化物 (4 mM) 的培养基中培养时,它们各自产生核素1和先前确定的 4'-氟-3'- O -β-葡糖基化腺苷2及其氨磺酰化衍生物3。在这两种情况下,4'-氟腺苷9也被鉴定为天然产物,尽管在牛链霉菌发酵过程中从未观察到它, 核素1的原始来源。4'-氟腺苷9的身份通过全合成以及使用葡糖基转移酶 NucGT体外酶促转化为代谢物2来证实。