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Asymmetry across species

Abstract

In both worms and flies, asymmetric cell divisions involve the protein Bazooka/PAR-3, which is required for the asymmetric segregation of cell-fate determinants. However, differential distribution of a determinant between daughter cells may be achieved by different means in alternative developmental settings.

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Figure 1: Model for bazooka function in neuroblasts.
Figure 2: In a mitotic Drosophila neuroblast, during prophase, the Miranda, Prospero and Staufen proteins and prospero mRNA probably form a complex at the apical cortex, and they co-localize with the Bazooka and Inscuteable proteins.

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Correspondence to Yuh-Nung Jan.

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Jan, YN., Jan, L. Asymmetry across species. Nat Cell Biol 1, E42–E44 (1999). https://doi.org/10.1038/10036

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