|Citation||Badenhorst, P., Finch, J.T., Travers, A.A. (2002). Tramtrack co-operates to prevent inappropriate neural development in Drosophila. Mech. Dev. 117(1-2): 87--101. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||Each sensory organ of the Drosophila peripheral nervous system is derived from a single sensory organ precursor cell (SOP). These originate in territories defined by expression of the proneural genes of the Achaete-Scute complex (AS-C). Formation of ectopic sensilla outside these regions is prevented by transcriptional repression of proneural genes. We demonstrate that the BTB/POZ-domain transcriptional repressor Tramtrack (Ttk) co-operates in this repression. Ttk is expressed ubiquitously, except in proneural clusters and SOPs. Ttk over-expression represses proneural genes and sensilla formation. Loss of Ttk enhances bristle-promoting mutants. Using neural repression as an assay, we dissected functional domains of Ttk, confirming the importance of the bric-à-brac-tramtrack-broad complex (BTB) motif. We show that the Ttk BTB domain is a protein-protein interaction motif mediating tetramer formation.|
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|Language of Publication||English|
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|Also Published As|
|Title||Mechanisms of Development|
|Data from Reference|