ArticleJournal of virology2022
E1B-55K Is a Phosphorylation-Dependent Transcriptional and Posttranscriptional Regulator of Viral Gene Expression in Human Adenovirus C5 Infection.
Article in Journal of virology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 10 citations in OpenAlex.
- The adenovirus oncoprotein E1B-55K reshapes epigenetic histone modifications in primary human cells.mBio · 2026Article
- Review
- Article
- Adenovirus E1B-55K controls SUMO-dependent degradation of antiviral cellular restriction factors.Journal of virology · 2023Article
- Identification of Adenovirus E1B-55K Interaction Partners through a Common Binding Motif.Viruses · 2023Article
- The human adenovirus E1B-55K oncoprotein coordinates cell transformation through regulation of DNA-bound host transcription factors.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Article
- Protein-Protein Interactions Facilitate E4orf6-Dependent Regulation of E1B-55K SUMOylation in HAdV-C5 Infection.Viruses · 2022Article
- Adipocyte commitment of 3T3-L1 cells is required to support human adenovirus 36 productive replication concurrent with altered lipid and glucose metabolism.Frontiers in cellular and infection microbiology · 2022Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The multifunctional adenoviral E1B-55K phosphoprotein is a major regulator of viral replication and plays key roles in virus-mediated cell transformation. While much is known about its function in oncogenic cell transformation, the underlying features and exact mechanisms that implicate E1B-55K in the regulation of viral gene expression are less well understood. Therefore, this work aimed to unravel basic intranuclear principles of E1B-55K-regulated viral mRNA biogenesis using wild-type human adenovirus C5 (HAdV-C5) E1B-55K, a virus mutant with abrogated E1B-55K expression, and a mutant that expresses a phosphomimetic E1B-55K. By subnuclear fractionation, mRNA, DNA, and protein analyses as well as luciferase reporter assays, we show that (i) E1B-55K promotes the efficient release of viral late mRNAs from their site of synthesis in viral replication compartments (RCs) to the surrounding nucleoplasm, (ii) E1B-55K modulates the rate of viral gene transcription and splicing in RCs, (iii) E1B-55K participates in the temporal regulation of viral gene expression, (iv) E1B-55K can enhance or repress the expression of viral early and late promoters, and (v) the phosphorylation of E1B-55K regulates the temporal effect of the protein on each of these activities. Together, these data demonstrate that E1B-55K is a phosphorylation-dependent transcriptional and posttranscriptional regulator of viral genes during HAdV-C5 infection.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.