This study characterizes the complex mechanism of asymmetric protein localization in neuronal stem cells of the central nervous system of Drosophila. Confocal fluorescence microscopy and GFP fusion protein experiments in living embryos revealed that the localization of the adaptor proteins Miranda and PON is regulated differently. Miranda localization was shown to be dynamic and to rely on cytoplasmatic diffusion and active Myosin II and VI. Moreover, for the first time it was shown that Miranda is phosphorylated in vivo. Miranda “loss of function” germline clones revealed a strong phenotype manifested in abnormal cell and spindle morphology, indicating that Miranda is essential during embryogenesis.
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This study characterizes the complex mechanism of asymmetric protein localization in neuronal stem cells of the central nervous system of Drosophila. Confocal fluorescence microscopy and GFP fusion protein experiments in living embryos revealed that the localization of the adaptor proteins Miranda and PON is regulated differently. Miranda localization was shown to be dynamic and to rely on cytoplasmatic diffusion and active Myosin II and VI. Moreover, for the first time it was shown that Miranda...
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