Interactions of Tomato Chlorosis Virus p27 Protein with Tomato Catalase Are Involved in Viral Infection
文献类型： 外文期刊
第一作者： Sun, Xiaohui
作者： Sun, Xiaohui;Jiang, Shanshan;Zhu, Xiaoping;Sun, Xiaohui;Zang, Lianyi;Liu, Xiaoying;Zhang, Xianping;Zhao, Dan;Shang, Kaijie;Zhou, Tao;Zhu, Changxiang
作者机构：
关键词： tomato chlorosis virus; p27; catalase; virus host proteins
期刊名称：VIRUSES-BASEL （ 影响因子：4.7； 五年影响因子：4.8 ）
ISSN：
年卷期： 2023 年 15 卷 4 期
页码：
收录情况： SCI
摘要： Tomato chlorosis virus (ToCV) severely threatens tomato production worldwide. P27 is known to be involved in virion assembly, but its other roles in ToCV infection are unclear. In this study, we found that removal of p27 reduced systemic infection, while ectopic expression of p27 promoted systemic infection of potato virus X in Nicotiana benthamiana. We determined that Solanum lycopersicum catalases (SlCAT) can interact with p27 in vitro and in vivo and that amino acids 73 to 77 of the N-terminus of SlCAT represent the critical region for their interaction. p27 is distributed in the cytoplasm and nucleus, and its coexpression with SlCAT1 or SlCAT2 changes its distribution in the nucleus. Furthermore, we found that silencing of SlCAT1 and SlCAT2 can promote ToCV infection. In conclusion, p27 can promote viral infection by binding directly to inhibit anti-ToCV processes mediated by SlCAT1 or SlCAT2.
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