Evidence map›Paper›PMID 12805445›Full record

ArticleJournal of virology2003

Functional analysis of the endogenous retroviral promoter of the human endothelin B receptor gene.

Josette-Renée Landry, Dixie L Mager

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
7.9field-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

21 citing papers in PubMed, 64 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Evolutionary impact of transposable elements on genomic diversity and lineage-specific innovation in vertebrates.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2015
    Review
  6. Review
  7. Review
  8. Is there a role for endogenous retroviruses to mediate long-term adaptive phenotypic response upon environmental inputs?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2013
    Review
  9. Review
  10. Review
  11. Hypomethylation of functional retrotransposon-derived genes in the human placenta.Mammalian genome : official journal of the International Mammalian Genome Society · 2011
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Prolactin in man: a tale of two promoters.BioEssays : news and reviews in molecular, cellular and developmental biology · 2006
    Review
  18. Article
  19. Article
  20. Article
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.

Josette-Renée LandryTerry Fox Laboratory, British Columbia Cancer Agency, and Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.
Dixie L Mager
BC Cancer Agency · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We previously reported that the long terminal repeats (LTRs) of retroviral elements belonging to the HERV-E family contribute to the expression of the human apolipoprotein C1 (APOC1) and endothelin B receptor (EDNRB) genes by providing alternative promoters. While both LTRs were shown to promote transcription in vivo and in vitro, their respective activity and tissue specificity appeared to differ even though they shared a high degree of sequence identity. In the present study, we further characterized the promoter of the EDNRB LTR and delineated the regions and motifs required for strong activity. We confirmed the placenta-restricted expression of the LTR by transient transfections and quantitative real-time PCR and determined that the retroviral promoter contributes significantly to the level of EDNRB transcripts in placenta, where chimeric mRNAs were found to represent 15% of overall EDNRB mRNAs. Transient transfection of 5' deletion constructs in cells of placental origin identified a motif, named LPE1, between positions 111 and 122 of the EDNRB LTR necessary for transcriptional activity. Removal of this region, which contains a putative SP1 binding site, abolished promoter activity. A second enhancing region resides between positions 175 and 215 of the LTR and was termed LPE2. Interestingly, this section contained three binding sites that were not present in the APOC1 LTR due to minor nucleotide differences. The predicted motifs in the EDNRB LTR were found to likely act in symbiosis as modifications to any of the three sites reduced transcription by one-third while alterations to all three eliminated promoter activity. The results from this study illustrate how slight variations in transcriptional regulatory sequences can have a profound effect on promoter activity and demonstrate the complex regulatory effects of human endogenous retrovirus elements on human gene expression.

Indexed as

Promoter Regions, GeneticBase SequenceDNAHumansMolecular Sequence DataMutagenesis, Site-DirectedReceptor, Endothelin BReceptors, EndothelinRepetitive Sequences, Nucleic AcidRetroviridaeReverse Transcriptase Polymerase Chain ReactionSequence Homology, Nucleic AcidTumor Cells, CulturedDNAReceptor, Endothelin BReceptors, Endothelin

Identifiers

PMID12805445
PMCPMC164795
OpenAlexW2062055359

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.