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Host E3 ligase Hrd1 ubiquitinates and degrades H protein of canine distemper virus to inhibit viral replication

文献类型: 外文期刊

作者: Wang, Wenjie 1 ; Bi, Zhenwei 1 ; Song, Suquan 2 ;

作者机构: 1.Jiangsu Acad Agr Sci, Natl Ctr Engn Res Vet Bioprod, Inst Vet Med, Key Lab Vet Biol Engn & Technol,Minist Agr & Rural, Nanjing 210014, Jiangsu, Peoples R China

2.Nanjing Agr Univ, Coll Vet Med, MOE Joint Int Res Lab Anim Hlth & Food Safety, Nanjing 210095, Jiangsu, Peoples R China

3.GuoTai Taizhou Ctr Technol Innovat Vet Biol, Taizhou 225300, Jiangsu, Peoples R China

关键词: Canine distemper virus; Hrd1; H protein; ubiquitination; replication

期刊名称:VETERINARY RESEARCH ( 影响因子:4.4; 五年影响因子:4.3 )

ISSN: 0928-4249

年卷期: 2023 年 54 卷 1 期

页码:

收录情况: SCI

摘要: Canine distemper (CD) is a highly contagious and an acutely febrile disease caused by canine distemper virus (CDV), which greatly threatens the dog and fur industry in many countries. Endoplasmic reticulum (ER)-associated degradation (ERAD) is a protein quality control system for the degradation of misfolded proteins in the ER. In this study, a proteomic approach was performed, and results found the E3 ubiquitin ligase 3-hydroxy-3-methylglutaryl reductase degradation protein 1 (Hrd1), which is involved in ERAD, as one of the CDV H-interacting proteins. The interaction of Hrd1 with CDV H protein was further identified by Co-IP assay and confocal microscopy. Hrd1 degraded the CDV H protein via the proteasome pathway dependent on its E3 ubiquitin ligase activity. Hrd1 catalyzed the K63-linked polyubiquitination of CDV H protein at lysine residue 115 (K115). Hrd1 also exhibited a significant inhibitory effect on CDV replication. Together, the data demonstrate that the E3 ligase Hrd1 mediates the ubiquitination of CDV H protein for degradation via the proteasome pathway and inhibits CDV replication. Thus, targeting Hrd1 may represent a novel prevention and control strategy for CDV infection.

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