Results
author = "Basler, K"
Identification and in vivo role of the Armadillo-Legless interaction.
Description :
The Wnt signalling system controls many fundamental processes during animal development and its deregulation has been causally linked to colorectal cancer. Transduction of Wnt signals entails the association of beta-catenin with nuclear TCF DNA-binding factors and the subsequent activation of target...
Repository :
Zurich Open Repository and Archive (ZORA)
Language(s) :
English
Transcription in the absence of histone H3.3
Description :
Di- and trimethylation of histone H3 lysine 4 (H3K4me2 and H3K4me3) are hallmarks of chromatin at active genes. The major fraction of K4-methylated histone H3 is the variant H3 (termed H3.3 in Drosophila), which replaces canonical H3 (H3.2) in transcribed genes. Here, we genetically address the in v...
Repository :
Zurich Open Repository and Archive (ZORA)
Language(s) :
English
Porcupine-mediated lipidation is required for Wnt recognition by Wls
Description :
Wnt proteins are members of a conserved family of secreted signaling ligands and play crucial roles during development and in tissue homeostasis. There is increasing evidence that aberrant Wnt production is an underlying cause of dysregulated Wnt signaling, however little is known about this process...
Repository :
Zurich Open Repository and Archive (ZORA)
Language(s) :
English
dMyc transforms cells into super-competitors.
Description :
Overexpression of myc protooncogenes has been implicated in the genesis of many human tumors. Myc proteins seem to regulate diverse biological processes, but their role in tumorigenesis remains enigmatic. Here we use Drosophila imaginal discs to mimic situations in which cells with unequal levels of...
Repository :
Zurich Open Repository and Archive (ZORA)
Language(s) :
English
A genetic screen for hedgehog targets involved in the maintenance of the Drosophila anteroposterior compartment boundary
Description :
The development of multicellular organisms requires the establishment of cell populations with different adhesion properties. In Drosophila, a cell-segregation mechanism underlies the maintenance of the anterior (A) and posterior (P) compartments of the wing imaginal disc. Although engrailed (en) ac...
Repository :
Zurich Open Repository and Archive (ZORA)
Language(s) :
English
Wingful, an extracellular feedback inhibitor of wingless
Description :
Secreted peptide signals control many fundamental processes during animal development. Proper responses to these signals require cognate inducible feedback antagonists. Here we report the identification of a novel Drosophila Wingless (Wg) target gene, wingful (wf), and show that it encodes a potent ...
Repository :
Zurich Open Repository and Archive (ZORA)
Language(s) :
English
An absolute requirement for Cubitus interruptus in Hedgehog signaling.
Description :
Hedgehog (Hh) proteins play diverse organizing roles in animal development by regulating gene expression in responding cells. Several components of the Hh signal transduction pathway have been identified, yet their precise role in mediating the various outputs of the pathway is still poorly understo...
Repository :
Zurich Open Repository and Archive (ZORA)
Language(s) :
English
Suppressor of fused opposes hedgehog signal transduction by impeding nuclear accumulation of the activator form of Cubitus interruptus.
Description :
Hedgehog controls the expression of key developmental genes through the conversion of the transcription factor Cubitus interruptus (Ci) into either an activator (Ci[act]) or a repressor (Ci[rep]) form. Proteolytic cleavage of full-length Ci is important for the generation of Ci[rep], but little is k...
Repository :
Zurich Open Repository and Archive (ZORA)
Language(s) :
English
The repressor and activator forms of Cubitus interruptus control Hedgehog target genes through common generic gli-binding sites.
Description :
The Drosophila Gli homolog Cubitus interruptus (Ci) controls the transcription of Hedgehog (Hh) target genes. A repressor form of Ci arises in the absence of Hh signalling by proteolytic cleavage of intact Ci, whereas an activator form of Ci is generated in response to the Hh signal. These different...
Repository :
Zurich Open Repository and Archive (ZORA)
Language(s) :
English
Organizing activity of wingless protein in Drosophila.
Description :
The adult appendages of Drosophila are formed from imaginal discs, sheets of epithelial cells that proliferate during larval development and differentiate during metamorphosis. wingless (wg, DWnt-1) protein, a putative signaling molecule, is expressed only in prospective ventral cells in each of the...
Repository :
Zurich Open Repository and Archive (ZORA)
Language(s) :
English