遗传学分析揭示了Pseudoalteromonas中二次代谢物生物合成的意想不到的能力
Jingxuan Wang1, Peng Li1, Xue Di1
1Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Health Science Center, Ningbo University, Ningbo, Zhejiang, 315211, China.
European journal of medicinal chemistry
|September 8, 2024
概括
海洋细菌 Pseudoalteromonas 潜藏着大量未开发的新生物活性化合物的潜力. 基因组分析揭示了成千上万的生物合成基因集群,以前只确定了一小部分,这突显了药物发现的重大新奇性.
科学领域:
- 海洋微生物学 海洋微生物学
- 自然产品的发现自然产品的发现.
- 生物信息学是一种生物信息学.
- 基因组学就是基因组学.
背景情况:
- 伪菌 (Pseudoalteromonas) 细菌是天然产品的丰富来源,具有多样化的生物活性.
- 探索这些化合物对于发现新的抗菌,抗真菌和抗污染剂至关重要.
- 一种基因第一方法可以加快新型二次代谢物的识别.
研究的目的:
- 为了全面分析Pseudoalteromonas属内的生物合成基因集群 (BGC) 潜力.
- 识别新的二次代谢物及其相应的BGCs.
- 为了指导未来探索来自Pseudoalteromonas的生物活性化合物.
主要方法:
- 应用了基因第一方法来分析632个公开的Pseudoalteromonas基因组.
- 鉴定和分类了3968个生物合成基因集群 (BGCs) 到995个基因集群家族 (GCFs).
- 对BGC进行了生物信息分析,并对11个选定的菌株进行了化学分析.
主要成果:
- 发现了3968个BGC,其中只有0.9%与MIBiG数据库中的已知集群相匹配,表明高新奇性.
- 鉴定了六种具有物种特异性的BGC分布的占主导地位的Pseudoalteromonas物种和两个保存的BGC.
- 从P. citrea WJX-3中分离出了四种新的抗生素,即korormicins L-O.
结论:
- 伪异种虫的基因组编码了大量的,基本上没有特征的二次代谢产物.
- 该研究为发现新型生物活性化合物提供了宝贵的资源和战略框架.
- 这凸显了Pseudoalteromonas在未来天然产品药物发现方面的巨大潜力.
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