有机化学    

研究论文

基于基因组挖掘的脆弱链霉菌中两个新型蒽醌-γ-吡喃酮类化合物的发现

王云帆a,b, 游松*,a, 唐功利*,b,c, 侯现锋*,b   

  1. a沈阳药科大学生命科学与生物制药学院 沈阳 110016;
    b中国科学院上海有机化学研究所 上海 200032;
    c国科大杭州高等研究院化学与材料科学学院 杭州 310024
  • 收稿日期:2026-05-11 修回日期:2026-06-24 发布日期:2026-09-14
  • 基金资助:
    国家自然科学基金(No. 22077134) 和中国科学院青年创新促进会(2019257)资助项目.

Genome Mining-Based Discovery of Two New Anthraquinone-γ-Pyrones from Streptomyces fragilis

Yunfan Wanga,b, Song You*,a, Gong-Li Tang*,b,c, Xian-Feng Hou*,b   

  1. aSchool of Life Sciences and Biopharmaceuticals, Shenyang Pharmaceutical University, Shenyang 110016, P.R. China;
    bShanghai Institute of Organic Chemistry, Chinese Academy of Sciences (CAS), University of CAS, Shanghai 200032, China;
    cSchool of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of CAS, Hangzhou 310024, China
  • Received:2026-05-11 Revised:2026-06-24 Published:2026-09-14
  • Supported by:
    National Natural Science Foundation of China (No. 22077134). and the CAS (Youth Innovation Promotion Association 2019257).

通过过表达途径特异性的SARP正调控基因ctg18_196,从脆弱链霉菌(Streptomyces fragilis)中发现了两个新型蒽醌-γ-吡喃酮类化合物fragoquinones A-B(1-2)。通过高分辨电喷雾质谱(HRESIMS)和核磁共振(NMR)波谱数据分析确定了其化学结构。抗菌活性初步评价表明,这两个化合物未表现出显著的抗菌活性。

关键词: 基因组挖掘, 脆弱链霉菌, 蒽醌-γ-吡喃酮, 结构鉴定, SARP调控基因

Two new anthraquinone-γ-pyrones, fragoquinones A-B (1-2), were discovered from Streptomyces fragilis by overexpression of SARP regulator gene ctg18_196, encoding a cluster-specific positive transcription activator. Their structures were elucidated by analysis of their HRESIMS and NMR spectroscopic data. Preliminary evaluation of antibacterial activity indicated that these two compounds displayed no significant antibacterial effects.

Key words: Genome mining, Streptomyces fragilis, Anthraquinone-γ-pyrones, Structural elucidation, SARP regulator gene