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Regulation of Apterous activity in Drosophila wing development.
Authors:U Weihe  M Milán  S M Cohen
Affiliation:European Molecular Biology Laboratory, Meyerhofstr 1, 69117 Heidelberg, Germany.
Abstract:
Apterous is a LIM-homeodomain protein that confers dorsal compartment identity in Drosophila wing development. Apterous activity requires formation of a complex with a co-factor, Chip/dLDB. Apterous activity is regulated during wing development by dLMO, which competes with Apterous for complex formation. Here, we present evidence that complex formation between Apterous, Chip and DNA stabilizes Apterous protein in vivo. We also report that a difference in the ability of Chip to bind the LIM domains of Apterous and dLMO contributes to regulation of activity levels in vivo.
Keywords:
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