生物活性查和基因组分析揭示了深海鱼类微生物群隔离物作为新型抗菌剂的来源
Shona Uniacke-Lowe1,2,3, Fergus W J Collins3, Colin Hill1,2
1Department of Microbiology, University College Cork, T12 K8AF Cork, Ireland.
Marine drugs
|August 25, 2023
概括
深海鱼的肠道含有产生新型抗菌素的微生物,包括独特的细菌素. 这项研究选了微生物对食源性病原体的活性,确定了有希望的新疗法化合物.
科学领域:
- 微生物学 微生物学
- 海洋生物学 海洋生物学
- 药物发现 药物发现 药物发现
背景情况:
- 抗微生物药物耐药性的增加需要新的治疗药物.
- 像大西洋这样的深海环境提供了尚未探索的微生物资源.
- 细菌素和其他抗微生物代谢物是潜在的候选药物.
研究的目的:
- 选深海鱼的肠道细菌,以检测它们的抗菌活性.
- 在这些分离物中识别编码细菌素和其他生物活性代谢物的基因.
- 来自深海微生物的新型抗菌化合物的特征.
主要方法:
- 在实验室中对细菌分离物的查,以检测它们对食源性病原体的抗微生物活性.
- 基因组DNA挖掘用于识别候选生物合成基因集群.
- 细菌素和其他抗微生物代谢物基因的生物信息分析和注释.
主要成果:
- 观察到对*黄金葡萄球菌*,*单细胞菌菌*,*脸部菌*和*白菌*进行抗菌活性.
- 确定了147个候选生物合成基因群,其中包括35个细菌素/RiPP类群.
- 编码新型的四个独特的细菌素基因集群 (IIc类,两个IId类和一个I类 lanthipeptide) 被注释.
结论:
- 深海鱼的微生物组是新型抗菌素的宝贵来源.
- 结合体外和体外的方法有效地揭示了抗菌潜力.
- 鉴定到的新型细菌素代表了未来治疗开发的有希望的候选人.
相关概念视频
01:29Modern Molecular Taxonomy
52
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
52
01:20Applications of Molecular Taxonomy
41
Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
41