菌加入甲化物对话:结构相关的基因组和代谢物证据
Byeol Ryu1, Nicole E Avalon1,2, Marine Cuau1,3
1Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California 92093, United States.
Journal of the American Chemical Society
|August 19, 2025
概括
海洋蓝藻,特别是Limnoraphis sp.,产生甲化物F类抗癌化合物. 这一发现扩大了这些生物活性分子的已知来源,并突出了人工智能在自然产品研究中的力量.
科学领域:
- 自然产品化学
- 海洋微生物学
- 有机生物化学
背景情况:
- 这是一种具有抗癌性质的循环脱化物,最初在藻类和软体动物中发现.
- 最近的研究发现一种细菌内生体是kahalalide F的生产者.
- 甲化F类化合物生产者的真实基因起源和多样性仍然不完全理解.
研究的目的:
- 描述一种来自海洋蓝藻的甲化物Z5的新型类似物.
- 探索海洋菌作为生物活性的来源的潜力.
- 应用先进的代谢和基因组策略,包括人工智能,用于天然产品的发现.
主要方法:
- 使用液体染色体-质谱/质谱 (LC-MS/MS) 的代谢分析.
- 通过SMART核磁共振 (NMR) 和DeepSAT人工智能进行结构阐明.
- 生产菌株的全基因组测序 (Limnoraphis sp. ) 的情况.
主要成果:
- 从海洋菌Limnoraphis sp中分离和鉴定了甲化物Z5,一种甲化物F模拟物.
- 根据详细的质谱分析提出了几种相关化合物.
- 通过基因组分析确定了与kahalalide Z5结构一致的NRPS生物合成基因集群.
结论:
- 海洋蓝藻,以Limnoraphis sp.为例,是甲化物F类分子的独立来源.
- 这一发现扩大了生产这些抗癌的生物的已知基因分布.
- 人工智能增强的代谢和基因组方法有效地简化了复杂的自然产品的发现和表征.
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