ArticleOncogene2000
Adenovirus E4orf4 protein interacts with both Balpha and B' subunits of protein phosphatase 2A, but E4orf4-induced apoptosis is mediated only by the interaction with Balpha.
Article in Oncogene, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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Who cites it
39 citing papers in PubMed, 68 citations in OpenAlex.
- An Interaction with PARP-1 and Inhibition of Parylation Contribute to Attenuation of DNA Damage Signaling by the Adenovirus E4orf4 Protein.Journal of virology · 2019Article
- Selective elimination of cancer cells by the adenovirus E4orf4 protein in a Drosophila cancer model: a new paradigm for cancer therapy.Cell death & disease · 2019Article
- Biphasic Functional Interaction between the Adenovirus E4orf4 Protein and DNA-PK.Journal of virology · 2019Article
- The Adenovirus E4orf4 Protein Provides a Novel Mechanism for Inhibition of the DNA Damage Response.PLoS pathogens · 2016Article
- The Human Adenovirus Type 5 E4orf4 Protein Targets Two Phosphatase Regulators of the Hippo Signaling Pathway.Journal of virology · 2015Article
- Review
- Analysis by live imaging of effects of the adenovirus E4orf4 protein on passage through mitosis of H1299 tumor cells.Journal of virology · 2015Article
- Interaction of adenovirus type 5 E4orf4 with the nuclear pore subunit Nup205 is required for proper viral gene expression.Journal of virology · 2014Article
- NTPDASE4 gene products cooperate with the adenovirus E4orf4 protein through PP2A-dependent and -independent mechanisms and contribute to induction of cell death.Journal of virology · 2014Article
- Adenovirus E4orf4 protein-induced death of p53-/- H1299 human cancer cells follows a G1 arrest of both tetraploid and diploid cells due to a failure to initiate DNA synthesis.Journal of virology · 2013Article
- Structure- and modeling-based identification of the adenovirus E4orf4 binding site in the protein phosphatase 2A B55α subunit.The Journal of biological chemistry · 2013Article
- E4orf4 induces PP2A- and Src-dependent cell death in Drosophila melanogaster and at the same time inhibits classic apoptosis pathways.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
- Identification of the adenovirus E4orf4 protein binding site on the B55α and Cdc55 regulatory subunits of PP2A: Implications for PP2A function, tumor cell killing and viral replication.PLoS pathogens · 2013Article
- PP2A Counterbalances Phosphorylation of pRB and Mitotic Proteins by Multiple CDKs: Potential Implications for PP2A Disruption in Cancer.Genes & cancer · 2012Article
- Preparation of cell-lines for conditional knockdown of gene expression and measurement of the knockdown effects on E4orf4-induced cell death.Journal of visualized experiments : JoVE · 2012Article
- The adenovirus E4orf4 protein targets PP2A to the ACF chromatin-remodeling factor and induces cell death through regulation of SNF2h-containing complexes.Nucleic acids research · 2011Article
- Genetic analysis of B55alpha/Cdc55 protein phosphatase 2A subunits: association with the adenovirus E4orf4 protein.Journal of virology · 2011Article
- The cytosolic tail of the Golgi apyrase Ynd1 mediates E4orf4-induced toxicity in Saccharomyces cerevisiae.PloS one · 2010Article
- Adenovirus protein E4orf4 induces premature APCCdc20 activation in Saccharomyces cerevisiae by a protein phosphatase 2A-dependent mechanism.Journal of virology · 2010Article
- The adenovirus E4orf4 protein induces G2/M arrest and cell death by blocking protein phosphatase 2A activity regulated by the B55 subunit.Journal of virology · 2009Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Adenovirus E4orf4 protein is a multifunctional viral regulator, which is involved in down regulation of virally-modulated signal transduction, in control of alternative splicing of viral mRNAs, and in induction of apoptosis in transformed cells. It has been previously shown that E4orf4 interacts with protein phosphatase 2A through the phosphatase Balpha subunit. It was further shown that PP2A is required for performing the various E4orf4 functions. We report here that E4orf4 interacts with multiple isoforms of the PP2A-B' subunit, as well as with Balpha. We map the interaction sites of the B subunits on E4orf4 and show that they overlap but are not identical. We identify a dominant negative E4orf4 mutant, which disrupts the PP2A holoenzyme. We show that induction of apoptosis by E4orf4, which we previously reported to require the interaction with Balpha, is not affected by the interaction with B'. Our results suggest that the interaction of E4orf4 with various PP2A subpopulations may mediate the different E4orf4 functions.
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