|Citation||Diaz-Benjumea, F.J., Hafen, E. (1994). The sevenless signalling cassette mediates Drosophila EGF receptor function during epidermal development. Development 120(3): 569--578. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||In Drosophila, Drk, an SH2 adaptor protein, Sos, a putative activator of Ras1, Ras1, raf and rolled/MAP kinase have been shown to be required for signalling from the sevenless and the torso receptor tyrosine kinase. From these studies, it was unclear whether these components act in a single linear pathway as suggested by the genetic analysis or whether different components serve to integrate different signals. We have analyzed the effects of removing each of these components during the development of the adult epidermal structures by generating clones of homozygous mutant cells in a heterozygous background. Mutations in each of these signalling components produce a very similar set of phenotypes. These phenotypes resemble those caused by loss-of-function mutations in the Drosophila EGF receptor homolog (DER). It appears that these components form a signalling cassette, which mediates all aspects of DER signalling but that is not required for other signalling processes during epidermal development.|
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|Language of Publication||English|
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