Evidence map›Paper›PMID 12223400›Full record

ArticleDevelopment (Cambridge, England)2002

The repressor activity of Even-skipped is highly conserved, and is sufficient to activate engrailed and to regulate both the spacing and stability of parasegment boundaries.

Miki Fujioka, Galina L Yusibova, Nipam H Patel, Susan J Brown, James B Jaynes

Open access · greenAbstract read
In one paragraph

Article in Development (Cambridge, England), 2002. 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
0.7field-weighted citation impact, top 32% 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, 36 citations in OpenAlex.

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  17. Induction and patterning of trunk and tail neural ectoderm by the homeobox gene eve1 in zebrafish embryos.Proceedings of the National Academy of Sciences of the United States of America · 2010
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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

5 authors at 3 institutions in 1 country.

Miki FujiokaDepartment of Microbiology and Immunology, Thomas Jefferson University, JAH490, Philadelphia, PA 19107, USA.
Galina L Yusibova
Nipam H Patel
Susan J Brown
James B Jaynes
Thomas Jefferson University · USKansas State University · USUniversity of Chicago · US

Funding

GENETIC CONTROL OF SEGMENTATIONR01HD029594 · NICHD · KANSAS STATE UNIVERSITY · PI BROWN, SUSAN J. · 1992 to 2011
$3.4M
TRANSCRIPTIONAL REGULATORY MECHANISMS DURING DEVELOPMENTR01GM050231 · NIGMS · THOMAS JEFFERSON UNIVERSITY · PI JAYNES, JAMES B · 1995 to 2013
$3.3M
NICHD NIH HHS R01 HD029594NIGMS NIH HHS GM 50231NIGMS NIH HHS R01 GM050231
6 · The paper itself

Abstract

During segmentation of the Drosophila embryo, even skipped is required to activate engrailed stripes and to organize odd-numbered parasegments. A 16 kb transgene containing the even skipped coding region can rescue normal engrailed expression, as well as all other aspects of segmentation, in even skipped null mutants. To better understand its mechanism of action, we functionally dissected the Even-skipped protein in the context of this transgene. We found that Even-skipped utilizes two repressor domains to carry out its function. Each of these domains can function autonomously in embryos when fused with the Gal4 DNA-binding domain. A chimeric protein consisting only of the Engrailed repressor domain and the Even-skipped homeodomain, but not the homeodomain alone, was able to restore function, indicating that the repression of target genes is sufficient for even skipped function at the blastoderm stage, while the homeodomain is sufficient to recognize those target genes. When Drosophila Even skipped was replaced by its homologs from other species, including a mouse homolog, they could provide substantial function, indicating that these proteins can recognize similar target sites and also provide repressor activity. Using this rescue system, we show that broad, early even skipped stripes are sufficient for activation of both odd- and even-numbered engrailed stripes. Furthermore, these 'unrefined' stripes organize odd-numbered parasegments in a dose-dependent manner, while the refined, late stripes, which coincide cell-for-cell with parasegment boundaries, are required to ensure the stability of the boundaries.

Indexed as

Bacterial ProteinsTranscriptional ActivationAnimalsAnimals, Genetically ModifiedBinding SitesBody PatterningCleavage Stage, OvumDrosophila melanogasterDrosophila ProteinsHomeodomain ProteinsRepressor ProteinsTranscription FactorsBacterial ProteinsDrosophila ProteinsEn protein, Drosophilaeve protein, DrosophilaHomeodomain ProteinsRepressor ProteinsTranscription Factors

Identifiers

PMID12223400
PMCPMC2709299
OpenAlexW2096794828

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.