菌根菌体的泛基因组规模注释,用于剖析基于序列聚类和结构同质分析策略的菌体与宿主相互作用
Xiao Guo1, Zheng-Guo He1,2
1College of Life Science and Technology, Guangxi University, Nanning, China.
mSystems
|July 29, 2025
概括
这项研究使用基于结构的搜索增强了菌细菌细胞蛋白质注释,将率从34%提高到52.11%. 它确定了对抗耐药细菌至关重要的新型蛋白质功能和相互作用.
科学领域:
- * 基因组学和生物信息学
- * 微生物学和病毒学
背景情况:
- * 菌根菌体代表了拥有测序基因组的最大的菌体群.
- * 显著的一部分菌根菌蛋白质仍然未被注释,限制了对菌与宿主相互作用的理解.
- * 细菌耐药性需要菌体具有明确的遗传背景用于治疗应用.
研究的目的:
- * 通过基于结构的相似性搜索方法来提高菌根菌蛋白的注释率.
- * 为了识别新型蛋白质功能,结构特征和潜在的抗防御机制在菌根菌.
- * 阐明菌根菌与它们的主机之间的分子相互作用.
主要方法:
- * 应用基于结构的相似性搜索对来自2,169个菌根菌基因组的240,754种蛋白质.
- * 分析了新型折叠,域融合和酶活性的鉴定蛋白质.
- * 菌体编码蛋白质与宿主复制,转录和翻译机制的推断相互作用网络.
主要成果:
- * 增加了真菌细菌体蛋白注释率,从34%增加到52.11%.
- * 确定了新的预测蛋白质折叠,结构域融合和假定的新酶.
- *发现预测的反防御蛋白 (例如,抗CRISPR,抗毒素) 和潜在的宿主机械相互作用网络.
结论:
- *以结构为基础的方法显著增强了菌菌体蛋白的注释,解决了关键的知识差距.
- * 这种改进的注释提供了对菌根菌生物学的关键见解以及菌与宿主相互作用.
- *这些发现有助于菌体作为治疗抗药性感染的治疗剂的发展.
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