Evidence map›Paper›PMID 18202363›Full record

ArticleGenetics2008

Enhancer blocking and transvection at the Drosophila apterous locus.

Daryl Gohl, Martin Müller, Vincenzo Pirrotta, Markus Affolter, Paul Schedl

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

25 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
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  7. Review
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  11. Boundaries of loop domains (insulators): Determinants of chromosome form and function in multicellular eukaryotes.BioEssays : news and reviews in molecular, cellular and developmental biology · 2017
    Review
  12. Article
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  19. Article
  20. Theoretical analysis of the role of chromatin interactions in long-range action of enhancers and insulators.Proceedings of the National Academy of Sciences of the United States of America · 2011
    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

5 authors at 3 institutions in 2 countries.

Daryl GohlDepartment of Molecular Biology and Biochemistry, Rutgers University, Piscataway, New Jersey 08854, USA.
Martin Müller
Vincenzo Pirrotta
Markus Affolter
Paul Schedl
Princeton University · USUniversity of Basel · CHRutgers, The State University of New Jersey · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intra- and interchromosomal interactions have been implicated in a number of genetic phenomena in diverse organisms, suggesting that the higher-order structural organization of chromosomes in the nucleus can have a profound impact on gene regulation. In Drosophila, homologous chromosomes remain paired in somatic tissues, allowing for trans interactions between genes and regulatory elements on the two homologs. One consequence of homolog pairing is the phenomenon of transvection, in which regulatory elements on one homolog can affect the expression of a gene in trans. We report a new instance of transvection at the Drosophila apterous (ap) locus. Two different insertions of boundary elements in the ap regulatory region were identified. The boundaries are inserted between the ap wing enhancer and the ap promoter and have highly penetrant wing defects typical of mutants in ap. When crossed to an ap promoter deletion, both boundary inserts exhibit the interallelic complementation characteristic of transvection. To confirm that transvection occurs at ap, we generated a deletion of the ap wing enhancer by FRT-mediated recombination. When the wing-enhancer deletion is crossed to the ap promoter deletion, strong transvection is observed. Interestingly, the two boundary elements, which are inserted approximately 10 kb apart, fail to block enhancer action when they are present in trans to one another. We demonstrate that this is unlikely to be due to insulator bypass. The transvection effects described here may provide insight into the role that boundary element pairing plays in enhancer blocking both in cis and in trans.

Indexed as

Gene Expression RegulationAllelesAnimalsDNA-Binding ProteinsDNA Transposable ElementsDrosophila melanogasterDrosophila ProteinsEnhancer Elements, GeneticHeterozygoteHomeodomain ProteinsLIM-Homeodomain ProteinsModels, GeneticMutagenesis, InsertionalMutationPhenotypePromoter Regions, Geneticap protein, DrosophilaDNA-Binding ProteinsDNA Transposable ElementsDrosophila ProteinsHomeodomain ProteinsLIM-Homeodomain ProteinsRepressor Proteinssu(Hw) protein, DrosophilaTranscription Factorsz protein, Drosophila

Identifiers

PMID18202363
PMCPMC2206065
OpenAlexW2162770152

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.