双胞胎病毒C5蛋白质介导了病毒复合体在等离子体中形成,用于病毒细胞间运动
Siwen Zhao1, Pan Gong1, Jie Liu1
1State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
Plant physiology
|June 12, 2023
概括
番茄黄色叶子卷曲病毒 (TYLCV) 的C5蛋白针对病毒运动的等离子体 (PD). 这种蛋白与V2相互作用,促进细胞间传输,并增强感染期间的病毒DNA积累.
科学领域:
- 植物病毒学 植物病毒学
- 分子植物病理学
- 细胞生物学 细胞生物学
背景情况:
- 运动蛋白 (MPs) 对于植物病毒传输至关重要.
- 单片双胞胎病毒MP针对等离子体 (PD) 的机制尚不清楚.
研究的目的:
- 阐明番茄黄叶卷曲病毒 (TYLCV) C5蛋白在PD向和病毒运动中的作用.
- 研究C5与其他病毒蛋白的相互作用及其对病毒病原性的影响.
主要方法:
- 利用尼科蒂亚娜·本塔米亚纳作为一个模型系统.
- 进行了蛋白质相互作用测定和亚细胞局部化研究.
- 生成和分析了TYLCV C5无突变体和异胎性过度表达系统.
主要成果:
- TYLCV C5蛋白通过从核中的微纤维贸易定位到PD.
- C5与病毒蛋白C2和V2相互作用,促进核出口和V2的PD局部化.
- C5对于病毒病原性,DNA积累和细胞间传输至关重要,其功能在其他双胞胎病毒中得到保留.
结论:
- 该研究确定C5是双子病毒诱导的PD向和细胞间运动中的关键参与者.
- 证明了C5,V2和PD局部化之间的功能联系,以有效地传播病毒.
- 增强对双子病毒运动机制和潜在治疗点的理解.
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