Evidence map›Paper›PMID 21248046›Full record

ArticleJournal of virology2011

Expression of the human endogenous retrovirus (HERV) group HML-2/HERV-K does not depend on canonical promoter elements but is regulated by transcription factors Sp1 and Sp3.

Nina V Fuchs, Martin Kraft, Christiane Tondera, Kay-Martin Hanschmann, Johannes Löwer, Roswitha Löwer

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
7.0field-weighted citation impact, top 3% 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

47 citing papers in PubMed, 63 citations in OpenAlex.

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  11. Endogenous Retroviruses as Modulators of Innate Immunity.Pathogens (Basel, Switzerland) · 2023
    Review
  12. Human Endogenous Retroviruses in Diseases.Sub-cellular biochemistry · 2023
    Article
  13. Article
  14. Article
  15. Article
  16. Review
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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

6 authors at 1 institution in 1 country.

Nina V FuchsPaul Ehrlich Institut, Federal Institute for Vaccines and Biomedicines, Paul-Ehrlich-Strasse 51-59, D-63225 Langen, Germany.
Martin Kraft
Christiane Tondera
Kay-Martin Hanschmann
Johannes Löwer
Roswitha Löwer
Paul Ehrlich Institut · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

After fixation in the human genome, human endogenous retroviruses (HERVs) are bona fide cellular genes despite their exogenous origin. To be able to spread within the germ line and the early embryo, the ancient retroviral promoters must have adapted to the requirements for expression in these cell types. We describe that in contrast to the case for current exogenous retroviruses, which replicate in specific somatic cells, the long terminal repeat (LTR) of the human endogenous retrovirus HERV-K acts as a TATA- and initiator element-independent promoter with a variable transcription start site. We present evidence that the HERV-K LTR is regulated by the transcription factors Sp1 and Sp3. Mutating specific GC boxes, which are binding sites for Sp proteins, and knocking down Sp1 and Sp3 by use of small interfering RNA (siRNA) significantly reduced the promoter activity. Binding of Sp1 and Sp3 to the promoter region was confirmed using electrophoretic mobility shift assays (EMSAs) and chromatin immunoprecipitation (ChIP). Our data explain why certain HERV-K proviruses have lost promoter competence. Since vertebrate promoters lacking canonical core promoter elements are common but poorly studied, understanding the HERV-K promoter not only will provide insight into the regulation of endogenous retroviruses but also can serve as a paradigm for understanding the regulation of this class of cellular genes.

Indexed as

Host-Pathogen InteractionsPromoter Regions, GeneticTerminal Repeat SequencesDNA, ViralElectrophoretic Mobility Shift AssayEndogenous RetrovirusesHumansProtein BindingSp1 Transcription FactorSp3 Transcription FactorTranscription, GeneticTranscription Initiation SiteDNA, ViralSp1 Transcription FactorSP3 protein, humanSp3 Transcription Factor

Identifiers

PMID21248046
PMCPMC3067833
OpenAlexW2162877758

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.