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Citation
Auer, J.S., Nagel, A.C., Schulz, A., Wahl, V., Preiss, A. (2015). Local overexpression of Su(H)-MAPK variants affects Notch target gene expression and adult phenotypes in Drosophila.  Data Brief 5(): 852--863.
FlyBase ID
FBrf0230471
Publication Type
Research paper
Abstract

In Drosophila, Notch and EGFR signalling pathways are closely intertwined. Their relationship is mostly antagonistic, and may in part be based on the phosphorylation of the Notch signal transducer Suppressor of Hairless Su(H) by MAPK. Su(H) is a transcription factor that together with several cofactors regulates the expression of Notch target genes. Here we address the consequences of a local induction of three Su(H) variants on Notch target gene expression. To this end, wild-type Su(H), a phospho-deficient Su(H) (MAPK-) (ko) and a phospho-mimetic Su(H) (MAPK-ac) isoform were overexpressed in the central domain of the wing anlagen. The expression of the Notch target genes cut, wingless, E(spl)m8-HLH and vestigial, was monitored. For the latter two, reporter genes were used (E(spl)m8-lacZ, vg (BE) -lacZ). In general, Su(H) (MAPK-) (ko) induced a stronger response than wild-type Su(H), whereas the response to Su(H) (MAPK-ac) was very weak. Notch target genes cut, wingless and vg (BE) -lacZ were ectopically activated, whereas E(spl)m8-lacZ was repressed by overexpression of Su(H) proteins. In addition, in epistasis experiments an activated form of the EGF-receptor (DER (act) ) or the MAPK (rl (SEM) ) and individual Su(H) variants were co-overexpressed locally, to compare the resultant phenotypes in adult flies (thorax, wings and eyes) as well as to assay the response of the Notch target gene cut in cell clones.

PubMed ID
PubMed Central ID
PMC4669530 (PMC) (EuropePMC)
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    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    Data Brief
    Title
    Data in brief
    ISBN/ISSN
    2352-3409
    Data From Reference
    Genes (7)