47 results found
    1. Cell Biology

    Evidence that a positive feedback loop drives centrosome maturation in fly embryos

    Ines Alvarez-Rodrigo et al.
    Polo kinase recruitment by the protein Spd-2 to the pericentriolar scaffold is a key element of the positive feedback loop which drives the expansion of the mitotic centrosomes in flies.
    1. Cell Biology

    Centriolar SAS-7 acts upstream of SPD-2 to regulate centriole assembly and pericentriolar material formation

    Kenji Sugioka et al.
    A genetic screen and live cell imaging show that a newly identified coiled-coil protein called SAS-7 is the earliest acting factor in centriole assembly yet identified in the roundworm Caenorhabditis elegans.
    1. Cell Biology

    Re-examining the role of Drosophila Sas-4 in centrosome assembly using two-colour-3D-SIM FRAP

    Paul T Conduit et al.
    Building on previous work (Conduit et al., 2014), and contrary to what was previously thought, it is shown that key centrosomal proteins are not recruited to centrosomes as part of large multi-protein assemblies.
    1. Developmental Biology
    2. Neuroscience

    MiRNA-128 regulates the proliferation and neurogenesis of neural precursors by targeting PCM1 in the developing cortex

    Wei Zhang et al.
    During early cortical development, microRNA-128 regulates the homeostasis of neural stem cells by targeting PCM1, a protein that is critical for cell division.
    1. Cell Biology

    Co-translational protein targeting facilitates centrosomal recruitment of PCNT during centrosome maturation in vertebrates

    Guadalupe Sepulveda et al.
    During centrosome maturation, pericentrin is delivered to the centrosome co-translationally by a microtubule- and dynein-dependent process, as pericentrin mRNA is undergoing active translation near the centrosome.
    1. Cell Biology

    A novel Cep120-dependent mechanism inhibits centriole maturation in quiescent cells

    Ewelina Betleja et al.
    Cells have evolved a mechanism that actively regulates centriole maturation during quiescence.
    1. Cell Biology

    A two-step mechanism for the inactivation of microtubule organizing center function at the centrosome

    Jérémy Magescas et al.
    The microtubule organizing potential of the centrosome is inactivated in a stepwise process through phosphatase activity and mechanical disruption to remove an aging matrix of proteins.
    1. Cell Biology
    2. Developmental Biology

    A molecular mechanism of mitotic centrosome assembly in Drosophila

    Paul T Conduit et al.
    The proteins DSpd-2 and Centrosomin assemble into dynamic scaffolds that build from the inside out around the mother centriole and support centrosome maturation.
    1. Cell Biology
    2. Developmental Biology

    Myogenin controls via AKAP6 non-centrosomal microtubule-organizing center formation at the nuclear envelope

    Robert Becker et al.
    Myogenin promotes centrosome attenuation and establishes the nuclear envelope as the dominant microtubule organization center via the scaffold protein AKAP6, which is required for the recruitment of centrosomal proteins.
    1. Cell Biology

    Pericentrin-mediated SAS-6 recruitment promotes centriole assembly

    Daisuke Ito et al.
    Newly discovered interaction between fission yeast SPB and animal centriole components reveals that pericentrin not only functions as a microtubule-nucleator, but also promotes centriole assembly in animals.

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