水稻条纹病毒外壳蛋白自身互作的活性区段研究

兰汉红

doi:10.19303/j.issn.1008-0384.2016.09.011

水稻条纹病毒外壳蛋白自身互作的活性区段研究

doi: 10.19303/j.issn.1008-0384.2016.09.011

兰汉红

闽南师范大学生物科学与技术学院, 福建漳州 363000

基金项目:

国家自然科学基金 31601613

闽南师范大学博士基金项目 2006L21607

详细信息

作者简介:
兰汉红(1982-),男,博士,讲师,研究方向:分子病毒学(E-mail:lanhanh@163.com)

中图分类号: S435
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- 被引次数: 0
出版历程
- 收稿日期: 2016-05-12
- 修回日期: 2016-07-05
- 刊出日期: 2016-09-28

Research of Fonctuonal Region Involved in the Self-interaction of Rice Stripe Virus Coat Protein

LAN Han-hong

School of Biological Sciences and Biotechnology, Minnan Normal University, Zhangzhou, Fujian 363000, China

摘要

摘要: 水稻条纹病毒（Rice stripe virus，RSV）的外壳蛋白（coat protein，CP）参与病毒转录、复制等多个生物学过程。病毒蛋白之间的互作对病毒侵染活性非常重要，在明确RSV外壳蛋白CP能够自身互作的基础上，通过构建CP蛋白N端、M区段和C端（CP-N、CP-M和CP-C）的酵母表达载体，利用酵母双杂交系统确定外壳蛋白CP自身互作的活性区段。结果表明，N端和C端第1～81个氨基酸是参与水稻条纹病毒CP蛋白自身互作的活性区段。这一研究结果不仅有助于加深理解RSV CP蛋白在病毒基因组稳定、复制过程中的作用，也有助于加深了解RSV、寄主和传播介体之间关系。
- 水稻条纹病毒 /
- 外壳蛋白 /
- 酵母双杂交 /
- 蛋白互作 /
- 活性区段
Abstract: Coat protein of Rice stripe virus plays important roles in several biological processes, such as viral transcription and replication. Interactions among viral proteins are essential for viral infection activity on host and insect vectors. In the present study, yeast two-hybrid system was used to detect the functional region inolving in the self-interaction of the RSV coat protein (CP). It was revealed that N-and C-terminal 81 amino acid residues played an essential role in self-interaction of RSV CP. Our results will be contributed to better understanding not only for functions of CP on viral stabilization and replication in insect vectors or host plants, but also for the relationship among virus, insect vectors and host plants.
- rice stripe virus /
- coat protein /
- yeast two-hybrid /
- protein interaction /
- functional region

HTML全文

图 1 RSV CP-N、CP-M和CP-C区段蛋白自激活活性检测

注：a为SD/Leu-培养基；b为SD/Trp-培养基；c为SD/Leu-Ade-培养基；d为SD/Leu-/X-α-Gal培养基。A为pGAD-CP-N；B为pGAD-CP-M；C为pGAD-CP-C；D为阴性对照pGADT7；E为阳性对照pCL1。

Figure 1. Self-activation detection for RSV CP-N,CP-M and CP-C

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图 2 酵母双杂交检测全长CP蛋白与CP-N、CP-M和CP-C的互作

注：A为SD/-Leu-Trp培养基；B为SD/-Leu-Trp-His培养基；C为SD/-Leu-Trp-His-Ade/X-α-Gal培养基。1为pGAD-CP-N/pGBK-CP；2为pGAD-CP-M/pGBK-CP；3为pGAD-CP-C/pGBK-CP；4为pGBK-CP-N/pGAD-CP；5为pGBK-CP-M/pGAD-CP；6为pGBK-CP-C/pGAD-CP；7为阴性对照 pGADT7-T/pGBK-Lam；8为阳性对照pGADT7-T/pGBKT7-53。

Figure 2. Detection of interaction between full length CP protein and CP-N,CP-M and CP-C by assays

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图 3 酵母双杂交检测CP-N的自身互作

注：A为SD/-Leu-Trp培养基；B为SD/-Leu-Trp-His培养基；C为SD/-Leu-Trp-His-Ade/X-α-Gal培养基。1为pGAD-CP-N/pGBK-CP-N；2为pGAD-CP-M/pGBK-CP-M；3为pGAD-CP-C/pGBK-CP-C；4为阴性对照 pGADT7-T/pGBK-Lam；5为阳性对照pGADT7-T/pGBKT7-53。

Figure 3. Detection of self-interaction between CP-Ns by assays

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