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使用计算和实验方法预测土豆叶病毒的RNA依赖RNA聚合酶的单核酸多态性
Dalia G Aseel1, Ayaat M Elmaghraby2, Ali El-Far3
1Plant Protection and Biomolecular Diagnosis Department, City of Scientific Research and Technological Applications (SRTA, City), Arid Lands Cultivation Research Institute (ALCRI),, New Borg El-Arab, 21934, Egypt. daseel@srtacity.sci.eg.
Scientific reports
|August 17, 2025
概括
这项研究预测了土豆叶病毒 (PLRV) RNA依赖RNA聚合酶 (RdRP) 中的单核酸多态 (SNPs),揭示了影响蛋白质稳定性和功能的突变,这对于管理这种破坏性土豆疾病至关重要.
科学领域:
- 植物病毒学 植物病毒学
- 分子生物学分子生物学
- 生物信息学是一种生物信息学.
背景情况:
- 马叶病是由马叶病毒 (PLRV) 引起的,导致大量的作物损失.
- 预测PLRV基因突变的全面研究是有限的.
- 了解病毒突变是疾病管理的关键.
研究的目的:
- 通过预测RNA依赖RNA聚合酶 (RdRP) 基因中的单核酸多态 (SNPs) 来量化和描述PLRV中的遗传突变.
- 利用计算方法探索这些突变对蛋白质功能和结构的影响.
- 为快速诊断和PLRV的可持续管理提供见解.
主要方法:
- 利用在线蛋白质预测工具来分析DNA突变对蛋白质功能和结构的影响.
- 使用聚合酶链反应 (PCR) 放大了PLRV-RdRp基因 (450 bp).
- 进行了遗传学分析,将PLRV-RdRp序列与NCBI数据库中的参考序列进行比较.
主要成果:
- 在位置93 (A93T) 和117 (K117G) 确定了两个预测的反转突变.
- 与参考基因 (13.4%) 相比,K117G突变显示蛋白质疾病的显著增加 (61%).
- 预测的SNP改变了RdRP蛋白的稳定性,物理化学性质和与自然化合物的相互作用.
结论:
- 已识别的SNP对PLRV RdRP蛋白的稳定性和功能有影响.
- 这些发现支持未来的研究,以快速诊断和可持续管理PLRV.
- 突变的计算预测是病毒学研究中的一个有价值的工具.
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