Sanpodo and Notch act in opposition to Numb to distinguish sibling neuron fates in the Drosophila CNS.

Abstract excerpt

In Drosophila, most neuronal siblings have different fates ('A/B'). Here we demonstrate that mutations in sanpodo, a tropomodulin actin-binding protein homologue, equalize a diverse array of sibling neuron fates ('B/B'). Loss of Notch signaling gives the same phenotype, whereas loss of numb gives the opposite phenotype ('A/A'). The identical effect of removing either sanpodo or Notch function on the fates of...

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