Evidence map›Paper›PMID 1326648›Full record

ArticleJournal of virology1992

Adenovirus E4orf4 protein reduces phosphorylation of c-Fos and E1A proteins while simultaneously reducing the level of AP-1.

U Müller, T Kleinberger, T Shenk

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
2.1field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

53 citing papers in PubMed, 102 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

U MüllerDepartment of Molecular Biology, Howard Hughes Medical Institute, Princeton University, New Jersey 08544-1014.
T Kleinberger
T Shenk
Howard Hughes Medical Institute · US

Funding

STRUCTURE &FUNCTION OF DNA TUMOR VIRUS GENOMESR37CA038965 · NCI · PRINCETON UNIVERSITY · PI SHENK, THOMAS E · 1987 to 2002
$1.1M
STRUCTURE AND FUNCTION OF DNA TUMOR VIRUS GENOMESR01CA038965 · NCI · PRINCETON UNIVERSITY · PI SHENK, THOMAS E · 1985 to 1986
–
NCI NIH HHS CA38965
6 · The paper itself

Abstract

Adenovirus E1A protein and cyclic AMP cooperate to induce transcription factor AP-1 and viral gene expression in mouse S49 cells. We report that a protein encoded within the viral E4 gene region acts to counterbalance the induction of AP-1 DNA-binding activity by E1A and cyclic AMP. Studies with mutant adenoviruses demonstrated that in the absence of E4orf4 protein, AP-1 DNA-binding activity is induced to substantially higher levels than in wild-type virus-infected cells. The induction is the result of increased production of JunB and c-Fos proteins. Hyperphosphorylated forms of c-Fos and E1A proteins accumulate in the absence of functional E4orf4 protein. We propose that the E4orf4 protein acts to inhibit the activity of a cellular kinase that phosphorylates both the E1A and c-Fos proteins. Phosphorylation-dependent alterations in the activity of c-Fos, E1A, or some unidentified protein might, then, lead to decreased synthesis of AP-1 components. This E4 function likely plays an important role in natural infections, since a mutant virus unable to express the E4orf4 protein is considerably more cytotoxic than the wild-type virus.

Indexed as

Adenovirus Early ProteinsAnimalsBlotting, WesternCells, CulturedCell SurvivalCyclic AMPMiceOncogene Proteins, ViralPhosphorylationPrecipitin TestsProto-Oncogene Proteins c-fosProto-Oncogene Proteins c-junRNA, MessengerTranscription, GeneticViral ProteinsAdenovirus Early ProteinsCyclic AMPOncogene Proteins, ViralProto-Oncogene Proteins c-fosProto-Oncogene Proteins c-junRNA, MessengerViral Proteins

Identifiers

PMID1326648
PMCPMC241463
OpenAlexW2126648733

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.