Evidence map›Paper›PMID 9121437›Full record

ArticleMolecular and cellular biology1997

The adenovirus E1A-regulated transcription factor E4F is generated from the human homolog of nuclear factor phiAP3.

E R Fernandes, R J Rooney

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

19 citing papers in PubMed, 34 citations in OpenAlex.

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  14. pRB binds to and modulates the transrepressing activity of the E1A-regulated transcription factor p120E4F.Proceedings of the National Academy of Sciences of the United States of America · 2000
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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

2 authors at 1 institution in 1 country.

E R FernandesDepartment of Biochemistry, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA.
R J Rooney
St. Jude Children's Research Hospital · US

Funding

Viral Vector Technology (VVTSR)P30CA021765 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CHARLES ROBERTS · 1985 to 2026
$166.9M
STRUCTURE AND REGULATION OF THE E4F TRANSCRIPTION FACTORR01GM051299 · NIGMS · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI ROONEY, ROBERT J · 1995 to 1999
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STRUCTURE AND REGULATION OF THE E4F TRANSCRIPTION FACTORR55GM051299 · NIGMS · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI ROONEY, ROBERT J · 1994 to 1994
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NCI NIH HHS P30 CA 21765NIGMS NIH HHS GM-51299
6 · The paper itself

Abstract

A 50-kDa cellular factor, E4F, has been implicated in mediating trans activation of the adenovirus E4 gene by the 289R E1A(13S) protein. Previous experiments demonstrated an E1A-dependent increase in E4F DNA binding activity, dependent on phosphorylation, that correlated with the activation of E4 transcription. Using expression screening, we isolated a cDNA clone encoding the E4F protein, as judged by DNA binding characteristics, transcriptional activation, and immunological criteria. The E4F-1 cDNA encodes a 783-amino-acid polypeptide that has 86% sequence identity with the murine nuclear factor phiAP3, a GLI-krüppel-related protein. E4F DNA binding activity is encoded within an amino-terminal region of E4F-1 that contains a zinc finger domain and, as with endogenous E4F, is phosphatase sensitive. We found that E4F was generated from the full-length E4F-1-encoded protein as a 50-kDa amino-terminal fragment. Moreover, E1A(13S) expression induced the phosphorylation of both forms of E4F-1 but differentially regulated their DNA binding activities, stimulating the 50-kDa fragment while reducing the activity of the full-length protein. In transient-transfection assays, the E4F-1 amino-terminal fragment stimulated the adenovirus E4 promoter in the presence of E1A(13S), whereas the full-length protein repressed the promoter in the absence, but not the presence, of E1A. The results indicate that the 50-kDa polypeptide responsible for E4F DNA binding activity is a fragment generated from the human homolog of phiAP3 and that the two forms of the E4F-1 protein are differentially regulated by E1A through phosphorylation.

Indexed as

Adenovirus E1A ProteinsAdenovirus E4 ProteinsAdenoviruses, HumanAmino Acid SequenceAnimalsBase SequenceBinding SitesDNADNA-Binding ProteinsDNA, ComplementaryGA-Binding Protein Transcription FactorHeLa CellsHumansMiceMolecular Sequence DataPhosphorylationAdenovirus E1A ProteinsAdenovirus E4 ProteinsDNADNA-Binding ProteinsDNA, ComplementaryE4f1 protein, mouseE4TF1 transcription factorGA-Binding Protein Transcription FactorRepressor Proteinstranscription factor p120(E4F)Transcription FactorsUbiquitin-Protein Ligases

Identifiers

PMID9121437
PMCPMC232036
OpenAlexW1817147453

What OpenQuestion holds

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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.