Metabolic Blockade-Based Genome Mining of Sea Anemone-Associated Streptomyces sp. S1502 Identifies Atypical Angucyclines WS-5995 A-E: Isolation, Identification, Biosynthetic Investigation, and Bioactivities
文献类型： 外文期刊
作者： Wang, Yuyang 1 ; Zhou, Le 1 ; Pan, Xiaoting 3 ; Liao, Zhangjun 4 ; Qi, Nanshan 3 ; Sun, Mingfei 3 ; Zhang, Hua 4 ; Ju, Jianhua 1 ; Ma, Junying 1 ;
作者机构： 1.Chinese Acad Sci, CAS Key Lab Trop Marine Bioresources & Ecol, Guangdong Key Lab Marine Mat Med, RNAM Ctr Marine Microbiol,South China Sea Inst Oce, Guangzhou 510301, Peoples R China
2.Univ Chinese Acad Sci, Coll Oceanol, Qingdao 266400, Peoples R China
3.Guangdong Acad Agr Sci, Key Lab Livestock Dis Prevent Guangdong Prov, Key Lab Avian Influenza & Other Major Poultry Dis, Inst Anim Hlth,Minist Agr & Rural Affairs, Guangzhou 510640, Peoples R China
4.Guangdong Med Univ, Inst Lab Med, Guangdong Prov Key Lab Med Mol Diagnost, Dongguan 523808, Peoples R China
关键词： metabolic blockade-based genome mining; Streptomyces sp. S1502; WS-5995; biosynthesis; anticoccidial activity
期刊名称：MARINE DRUGS （ 影响因子：5.4； 五年影响因子：5.5 ）
ISSN：
年卷期： 2024 年 22 卷 5 期
页码：
收录情况： SCI
摘要： Marine symbiotic and epiphyte microorganisms are sources of bioactive or structurally novel natural products. Metabolic blockade-based genome mining has been proven to be an effective strategy to accelerate the discovery of natural products from both terrestrial and marine microorganisms. Here, the metabolic blockade-based genome mining strategy was applied to the discovery of other metabolites in a sea anemone-associated Streptomyces sp. S1502. We constructed a mutant Streptomyces sp. S1502/Delta stp1 that switched to producing the atypical angucyclines WS-5995 A-E, among which WS-5995 E is a new compound. A biosynthetic gene cluster (wsm) of the angucyclines was identified through gene knock-out and heterologous expression studies. The biosynthetic pathways of WS-5995 A-E were proposed, the roles of some tailoring and regulatory genes were investigated, and the biological activities of WS-5995 A-E were evaluated. WS-5995 A has significant anti-Eimeria tenell activity with an IC50 value of 2.21 mu M. The production of antibacterial streptopyrroles and anticoccidial WS-5995 A-E may play a protective role in the mutual relationship between Streptomyces sp. S1502 and its host.
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