Napyradiomycin A4 and Its Relate Compounds, a New Anti-PRV Agent and Their Antibacterial Activities, from Streptomyces kebangsaanensis WS-68302
文献类型: 外文期刊
第一作者: Zhang, Yani
作者: Zhang, Yani;Fang, Wei;Wang, Kaimei;Zhang, Zhigang;Wu, Zhaoyuan;Shi, Liqiao;Liu, Fang;Wan, Zhongyi;Liu, Manli
作者机构:
关键词: napyradiomycins; anti-PRV; antibacterial; Streptomyces kebangsaanensis WS-68302
期刊名称:MOLECULES ( 影响因子:4.6; 五年影响因子:4.9 )
ISSN:
年卷期: 2023 年 28 卷 2 期
页码:
收录情况: SCI
摘要: Two new napyradiomycins derivatives, napyradiomycin A4 (1) and A80915 H (2), along with five known ones, were isolated from the ethyl acetate extract of fermentation culture of Streptomyces kebangsaanensis WS-68302. Their structures were elucidated by extensive spectroscopic analysis, including HR-MS, 1D and 2D NMR, CD spectrum, as well as comparison with literature data. Compound 1 exhibited significant antiviral activity against PRV (Pseudorabies virus) with an IC50 value of 2.056 mu M and therapeutic ratio at 14.98, suggesting that it might have potential for development of an antiviral agent. Moreover, compound 1 displayed the strongest inhibition against PRV protein among the tested napyradiomycins in the indirect immunofuorescence assay. Compounds 3 and 4 showed higher activities against swine pathogenic Streptococcus suis than the positive control penicillin G sodium salt, with MIC values of 3.125 and 6.25 mu g/mL, respectively. Compounds 1 and 3-6 exhibited moderate antibacterial activity against the swine pathogenic Erysipelothrix rhusiopathiae, with MIC values ranging from 25 to 50 mu g/mL.
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