作为病毒感染的古老骨干的小内核含基因?
Stefan Wuchty1,2,3,4, Alisa K White5, Anouk M Olthof5
1Department of Computer Science, University of Miami, Coral Gables, FL 33146, USA.
PNAS nexus
|January 26, 2024
概括
微小的内含基因 (MIG) 对于病毒感染至关重要. 这些在进化过程中保存的蛋白质形成了一个脊柱,病毒利用它在宿主细胞中入侵和复制.
科学领域:
- 分子生物学分子生物学
- 病毒学 病毒学
- 遗传学 是一个遗传学.
背景情况:
- 微小的内含基因 (MIG) 构成了人类蛋白质编码基因的一小部分 (<2%).
- 在精确的RNA处理中,MIGs依赖于小结合体.
- 令人惊的是,MIG编码的蛋白质 (MIG-Ps) 与宿主-病原体相互作用有关.
研究的目的:
- 研究MIG-P在病毒感染中的作用.
- 在多种病毒家族中识别与MIG-P的病毒相互作用.
- 了解MIG-Ps在宿主病毒网络中的进化保护和功能意义.
主要方法:
- 分析蛋白质与蛋白质相互作用数据库.
- 对各种RNA和DNA病毒的宿主因子进行比较分析.
- 网络分析以评估MIG-P的连接性和中心性.
- 对与病毒蛋白相互作用的MIGs的基因分析.
主要成果:
- MIG-Ps在积极感应RNA病毒 (例如,SARS-CoV-2),负感应RNA病毒 (例如,埃博拉,HIV-1) 和双链DNA病毒 (例如,HSV) 的相互作用体和宿主因子集中得到显著丰富.
- 在人与宿主蛋白相互作用网络中,MIG-Ps占据了中心位置,并且高度连接.
- 病毒蛋白与涉及细胞循环和信号转导等基本细胞过程的进化古老的MIG相互作用.
- 与病毒蛋白相互作用的MIG-Ps富含了必需的基因.
结论:
- MIG-P代表了一种被保护的,基本的宿主因子,被广泛的病毒所利用.
- 病毒利用这种稳定,进化保存的MIG-P骨干进行入侵和传播.
- 了解MIG-P病毒相互作用为抗病毒策略提供了潜在的目标.
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