在无脊椎动物虹色病毒6 (IIV6) 中,封膜蛋白118L的表征
Betul Altun1, Kubra Zengin2, Sevde Yayli Dabag2
1Department of Molecular Biology and Genetic, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
Virus genes
|June 26, 2024
概括
无脊椎动物色病毒6 (IIV6) 118L蛋白质对于病毒复制至关重要. 针对该蛋白的抗体中和IIV6感染,证实其在启动病毒复制中的作用.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 昆虫病理学 昆虫病理学
背景情况:
- 无脊椎动物色病毒6 (IIV6) 是一种核细胞质昆虫病毒,属于Iridoviridae家族.
- IIV6基因组包括212482 bp的线性dsDNA与215个假定的蛋白质编码ORF.
- 保存的118L ORF编码了一个具有预测的跨膜和糖化位点的蛋白质.
研究的目的:
- 在IIV6复制中描述保存的118L ORF的功能.
- 为了确定118L蛋白是否对病毒的传播和传染性至关重要.
主要方法:
- 使用同源重组的基因删除以用GFP取代118L.
- 使用dsRNA进行基因沉默,以抑制受感染细胞中的118L表达.
- 中和测试使用抗体对抗118L蛋白质.
主要成果:
- 删除118L的病毒突变不能传播,这表明它发挥了重要的作用.
- 通过dsRNA介导的118L沉默导致病毒标位降低了99%.
- 118L特异性抗体中和了IIV6感染,证实了其表面局部化和功能.
结论:
- 118L蛋白是IIV6.6的关键病毒包膜蛋白.
- 118L是启动病毒复制所需的.
- 针对118L为控制IIV6感染提供了一个潜在的战略.
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