Evidence map›Paper›PMID 18086699›Full record

ArticleNucleic acids research2008

Red flag on the white reporter: a versatile insulator abuts the white gene in Drosophila and is omnipresent in mini-white constructs.

Darya Chetverina, Ekaterina Savitskaya, Oksana Maksimenko, Larisa Melnikova, Olga Zaytseva, Alexander Parshikov, Alexander V Galkin, Pavel Georgiev

Abstract read
In one paragraph

Article in Nucleic acids research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
–field-weighted citation impact
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

28 citing papers in PubMed.

  1. Naturally Occurring Variability in the Regulatory Region of theInternational journal of molecular sciences · 2026
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  8. Demonstration ofbioRxiv : the preprint server for biology · 2023
    Article
  9. Article
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  12. Biogenesis of zinc storage granules inThe Journal of experimental biology · 2018
    Article
  13. Article
  14. 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
  15. Article
  16. Article
  17. Article
  18. Article
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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

8 authors.

Darya ChetverinaDepartment of the Control of Genetic Processes, Institute of Gene Biology, Russian Academy of Sciences, University of Oslo, Centre for Medical Studies in Russia, Moscow 199334, Russia.
Ekaterina Savitskaya
Oksana Maksimenko
Larisa Melnikova
Olga Zaytseva
Alexander Parshikov
Alexander V Galkin
Pavel Georgiev

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Much of the research on insulators in Drosophila has been done with transgenic constructs using the white gene (mini-white) as reporter. Hereby we report that the sequence between the white and CG32795 genes in Drosophila melanogaster contains an insulator of a novel kind. Its functional core is within a 368 bp segment almost contiguous to the white 3'UTR, hence we name it as Wari (white-abutting resident insulator). Though Wari contains no binding sites for known insulator proteins and does not require Su(Hw) or Mod(mdg4) for its activity, it can equally well interact with another copy of Wari and with unrelated Su(Hw)-dependent insulators, gypsy or 1A2. In its natural downstream position, Wari reinforces enhancer blocking by any of the three insulators placed between the enhancer and the promoter; again, Wari-Wari, Wari-gypsy or 1A2-Wari pairing results in mutual neutralization (insulator bypass) when they precede the promoter. The distressing issue is that this element hides in all mini-white constructs employed worldwide to study various insulators and other regulatory elements as well as long-range genomic interactions, and its versatile effects could have seriously influenced the results and conclusions of many works.

Indexed as

Genes, InsectGenes, ReporterInsulator ElementsAnimalsATP-Binding Cassette TransportersChromosome MappingDrosophila melanogasterDrosophila ProteinsEnhancer Elements, GeneticEye ProteinsGene Expression RegulationPromoter Regions, GeneticATP-Binding Cassette TransportersDrosophila ProteinsEye Proteinsw protein, Drosophila

Identifiers

PMID18086699
PMCPMC2241909

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.