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中国药学(英文版) ›› 2014, Vol. 23 ›› Issue (8): 525-532.DOI: 10.5246/jcps.2014.08.068

• 【研究论文】 • 上一篇    下一篇

海洋细菌Bacillus licheniformis中环脂肽类化合物的结构鉴定

高都1, 田黎2,3, 柏建1, 徐岷涓4, 冯蕾5, 张庆英1*, 林文翰1*   

  1. 1. 北京大学医学部 天然药物及仿生药物国家重点实验室, 北京 100191
    2. 国家海洋局第一海洋研究所, 山东 青岛 266061
    3. 青岛科技大学, 山东 青岛 266042
    4. 上海交通大学 系统生物医学研究院, 上海 200240
    5. 上海交通大学 分析测试中心, 上海 200240
  • 收稿日期:2014-05-12 修回日期:2014-05-27 出版日期:2014-08-31 发布日期:2014-06-10
  • 通讯作者: Tel./Fax: 86-10-82806188
  • 基金资助:
    Grants from COMRA (Grant No. DY125-15-T-01) and SOA (Grant No. 2010319123366025-4), National High Technology Development Project (863 Project, Grant No. 2011AA10A202-2), National Key Technologies R&D Program (Grant No. 2011BAE06B04).

Isolation and characterization of cyclic lipopeptides from the marine-derived Bacillus licheniformis

Du Gao1, Li Tian2,3, Jian Bai1, Minjuan Xu4, Lei Feng5, Qingying Zhang1*, Wenhan Lin1*   

  1. 1. State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China
    2. The First Institute of Oceanography, State Oceanic Administration (SOA), Qingdao 266061, China
    3. Qingdao University of Science & Technology, Qingdao 266042, China
    4. Shanghai Center for Systems Biomedicine, Key Laboratory of Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
    5. Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2014-05-12 Revised:2014-05-27 Online:2014-08-31 Published:2014-06-10
  • Contact: Tel./Fax: 86-10-82806188
  • Supported by:
    Grants from COMRA (Grant No. DY125-15-T-01) and SOA (Grant No. 2010319123366025-4), National High Technology Development Project (863 Project, Grant No. 2011AA10A202-2), National Key Technologies R&D Program (Grant No. 2011BAE06B04).

摘要:

从海洋细菌Bacillus licheniformis代谢产物中首次分离得到2个新表面活性肽(1, 2), 以及2个已知化合物 (3, 4)。应用现代NMR 技术解析了它们的化学结构, 并应用化学与色谱相结合方法确定了氨基酸的构型。论文还探讨该类化合物的质谱裂解规律, 为环脂肽类化合物的结构解析提供了快速分析方法。

关键词: 海洋细菌, Bacillus licheniformis 枯草芽孢杆菌, 环脂肽, surfactin 表面活性肽, UPLC-ESI-MS/MS

Abstract:

Chromatographic separation of themarine-derived bacterium Bacillus licheniformis resulted in the isolation of two new cyclic lipopeptides named ai-C16 surfactin (1) and ai-C14 surfactin (2), together with iso-C15 surfactin and iso-C16 surfactin. The structures of the new cyclic lipopeptides were determined through extensive spectroscopic analysis. The sequences ofthe amino acids in cyclic nucleus were established by the ESI-MS/MS fragmentation, which provided an efficient method to detect lipopeptides from bacterium extracts without separation.

Key words: Marine-derived bacterium, Bacillus licheniformis, Cyclic lipopeptides, ai-C16 surfactin, ai-C14 surfactin, UPLC-ESI-MS/MS fragmentation

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