The role of infectious hematopoietic necrosis virus (IHNV) proteins in recruiting the ESCRT pathway through three ways in the host cells of fish during IHNV budding.

08:00 EDT 9th July 2019 | BioPortfolio

Summary of "The role of infectious hematopoietic necrosis virus (IHNV) proteins in recruiting the ESCRT pathway through three ways in the host cells of fish during IHNV budding."

In cytokinetic abscission, phagophore formation, and enveloped virus budding are mediated by the endosomal sorting complex required for transport (ESCRT). Many retroviruses and RNA viruses encode "late-domain" motifs that can interact with the components of the ESCRT pathway to mediate the viral assembly and budding. However, the rhabdovirus in fish has been rarely investigated. In this study, inhibition the protein expression of the ESCRT components reduces the extracellular virion production, which preliminarily indicates that the ESCRT pathway is involved in IHNV release. The respective interactions of IHNV proteins including M, G, L protein with Nedd4, Tsg101, and Alix suggest the underlying molecular mechanism by which IHNV gets access to the ESCRT pathway. These results are the first observation that rhabdovirus in fish gains access to the ESCRT pathway through three ways of interactions between viral proteins and host proteins. In addition, the results show that IHNV is released from host cells through the ESCRT pathway. Taken together, our study provides a theoretical basis for studying the budding mechanism of IHNV.


Journal Details

This article was published in the following journal.

Name: Fish & shellfish immunology
ISSN: 1095-9947


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