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3'UTR of ALV-J can affect viral replication through promoting transcription and mRNA nuclear export.

ABSTRACT:

Importance

3'UTRs can affect gene transcription and post-transcriptional regulation in multiple ways, further influencing the function of proteins in a unique manner. Recently, ALV-J has been mutating and evolving rapidly, especially the 3'UTR of viral genome. Meanwhile, clinical symptoms caused by ALV-J have changed significantly. In this study, we found that the ALV-J strains containing △-r-TM-type 3'UTR are the most abundant. By constructing ALV-J infectious clones and subgenomic vectors containing different 3'UTRs, we prove that 3'UTRs directly affect viral tissue preference and can promote virus replication as an enhancer. ALV-J strain containing 3'UTR of △-r-TM proliferated fastest in primary cells. All five forms of 3'UTRs can assist intron-containing viral mRNA nuclear export, with similar efficiency. ALV-J mRNA half-life is not influenced by different 3'UTRs. Our results dissect the roles of 3'UTR on regulating viral replication and pathogenicity, providing novel insights into potential anti-viral strategies.

SUBMITTER: Xu M

PROVIDER: S-EPMC10688361 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature

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3'UTR of ALV-J can affect viral replication through promoting transcription and mRNA nuclear export.

Xu Moru M Qian Kun K Shao Hongxia H Yao Yongxiu Y Nair Venugopal V Ye Jianqiang J Qin Aijian A

Journal of virology 20231030 11

<h4>Importance</h4>3'UTRs can affect gene transcription and post-transcriptional regulation in multiple ways, further influencing the function of proteins in a unique manner. Recently, ALV-J has been mutating and evolving rapidly, especially the 3'UTR of viral genome. Meanwhile, clinical symptoms caused by ALV-J have changed significantly. In this study, we found that the ALV-J strains containing △-r-TM-type 3'UTR are the most abundant. By constructing ALV-J infectious clones and subgenomic vect ...[more]

PMID: 37902396

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Dataset Information

3'UTR of ALV-J can affect viral replication through promoting transcription and mRNA nuclear export.

Importance

Publications

3'UTR of ALV-J can affect viral replication through promoting transcription and mRNA nuclear export.

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