首页 正文

The Journal of antibiotics. 2025 May 19. doi: 10.1038/s41429-025-00830-x Q22.72025

Isolation and synthesis of a new cyclic tetrapeptide from marine-associated Bacillus sp. and its bacterial biofilm formation inhibitory activity

一种来源于海洋芽孢杆菌的新环状四肽的分离与合成及其抑制细菌生物被膜活性的研究 翻译改进

Shuaiqi Ma  1, Shixin Li  1, Li Song  1, Asma Riaz  1, Ruifeng Huang  1, Shaofen Zhou  1, Jingnan Qiu  1, Zonglin Chu  1, Jian He  2

作者单位 +展开

作者单位

  • 1 Group of Peptides and Natural Products Research, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China.
  • 2 Group of Peptides and Natural Products Research, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China. jianhe@smu.edu.cn.
  • DOI: 10.1038/s41429-025-00830-x PMID: 40389716

    摘要 中英对照阅读

    A new cyclic tetrapeptide named Cereusitin B (1), along with a number of known cyclic dipeptides was isolated from the fermentation broth of a marine-associated Bacillus sp. I-2. The structure of Cereusitin B, cyclo-(L-phenylalanyl-trans-4-hydroxy-L-prolyl-L-leucyl-L-alanine), was determined through extensive analysis using high-resolution electrospray ionization mass spectrometry and NMR spectral data (1D, 2D NMR), and its identity was further confirmed b... ...点击完成人机验证后继续浏览

    从与海洋相关的Bacillus sp. I-2的发酵液中分离出了一种新的环状四肽,命名为Cereusitin B(1),同时还分离出了若干已知的环状二肽。通过高分辨率电喷雾离子化质谱和核磁共振光谱数据(1D、2D NMR)进行了详细分析后确定了Cereusitin B的结构为cyclo-(L-苯丙氨酰-L-4-羟基脯氨酰-L-亮氨酰-L-丙氨酰),并通过Marfey方法和化学合成进一步确认其身份。抗菌活性测试表明化合物2对白色念珠菌具有中等活性,最低抑菌浓度(MIC)为125 µg mL-1,而其他化合物在实验浓度下没有显示出抗菌活性。此外,化合物1表现出抑制金黄色葡萄球菌生物膜形成的潜力。

    翻译效果不满意? 用Ai改进或 寻求AI助手帮助 ,对摘要进行重点提炼
    Copyright © The Journal of antibiotics. 中文内容为AI机器翻译,仅供参考!

    相关内容

    期刊名:Journal of antibiotics

    缩写:J ANTIBIOT

    ISSN:0021-8820

    e-ISSN:1881-1469

    IF/分区:2.7/Q2

    文章目录 更多期刊信息

    全文链接
    引文链接
    复制
    已复制!
    推荐内容
    Isolation and synthesis of a new cyclic tetrapeptide from marine-associated Bacillus sp. and its bacterial biofilm formation inhibitory activity