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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

The C-terminal domain of armadillo binds to hypophosphorylated teashirt to modulate wingless signalling in Drosophila.

Wnt signalling is a key pathway for tissue patterning during animal development. In Drosophila, the Wnt protein Wingless acts to stabilize Armadillo inside cells where it binds to at least two DNA-binding factors which regulate specific target genes. One Armadillo- binding protein in Drosophila is the zinc finger protein Teashirt. Here we show that Wingless signalling promotes the phosphorylation and the nuclear accumulation of Teashirt. This process requires the binding of Teashirt to the C-terminal end of Armadillo. Finally, we present evidence that the serine/threonine kinase Shaggy is associated with Teashirt in a complex. We discuss these results with respect to current models of Armadillo/beta-catenin action for the transmission of the Wingless/Wnt pathway.[1]

References

  1. The C-terminal domain of armadillo binds to hypophosphorylated teashirt to modulate wingless signalling in Drosophila. Gallet, A., Angelats, C., Erkner, A., Charroux, B., Fasano, L., Kerridge, S. EMBO J. (1999) [Pubmed]
 
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