631 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Cell Signaling: Uncovering the secret life of Rho GTPases

    Jenna A Perry, Amy Shaub Maddox
    New methods to directly visualize Rho GTPases reveal how a protein called RhoGDI regulates the activity of these 'molecular switches' at the plasma membrane.
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    1. Developmental Biology
    2. Neuroscience

    The adhesion-GPCR BAI1 shapes dendritic arbors via Bcr-mediated RhoA activation causing late growth arrest

    Joseph G Duman et al.
    The adhesion-GPCR BAI1 shapes dendritic arbors in the hippocampus by associating with Bcr late in development and stimulating its RhoA-GEF activity, resulting in dendritic growth arrest.
    1. Cancer Biology
    2. Cell Biology

    Rho-associated kinase (ROCK) function is essential for cell cycle progression, senescence and tumorigenesis

    Sandra Kümper et al.
    The Rho kinases ROCK1 and 2 act redundantly in regulating cell proliferation and their depletion causes cellular senescence.
    1. Cell Biology

    The RhoGAP activity of CYK-4/MgcRacGAP functions non-canonically by promoting RhoA activation during cytokinesis

    Donglei Zhang, Michael Glotzer
    Activation of the key regulator of cytokinesis, RhoA, involves an unexpected contribution by a RhoGAP domain.
    1. Cell Biology

    Microtubule plus-ends act as physical signaling hubs to activate RhoA during cytokinesis

    Vikash Verma, Thomas J Maresca
    MT plus-end-mediated recruitment of a cortical pool of ECT2 trigger RhoA activation upon contact, which results in localized contractility during cytokinesis.
    1. Developmental Biology

    An RNAi screen unravels the complexities of Rho GTPase networks in skin morphogenesis

    Melanie Laurin et al.
    An unprecedented large-scale screen in mice for morphogenetic regulators of tissue development provides major new insights into the roles of Rho GTPases in diverse array of skin developmental processes.
    1. Cell Biology
    2. Developmental Biology

    The Rho-guanine nucleotide exchange factor PDZ-RhoGEF governs susceptibility to diet-induced obesity and type 2 diabetes

    Ying-Ju Chang et al.
    PDZ-RhoGEF controls adipose tissue abundance and whole body metabolism.
    1. Cell Biology

    A Rho signaling network links microtubules to PKD controlled carrier transport to focal adhesions

    Stephan A Eisler et al.
    The small GTPase Rho connects GPCR signaling with PKD activity at TGN membranes and consequently anterograde trafficking to focal adhesions.
    1. Plant Biology

    Dynamic F-actin movement is essential for fertilization in Arabidopsis thaliana

    Tomokazu Kawashima et al.
    The movement of F-actin filaments, which is regulated by actin-myosin interactions together with a female gamete-specific Rho-GTPase, enables migration of the Arabidopsis sperm cell nucleus towards the female nucleus; which might account for the loss of centrosomes in flowering plants.
    1. Cell Biology
    2. Developmental Biology

    Apical targeting of the formin Diaphanous in Drosophila tubular epithelia

    Tal Rousso et al.
    Synergistic interactions with PI(4,5)P2 and activated Rho1, which are enriched at the apical membrane of tubular organs, facilitate tight apical targeting of the formin Diaphanous.

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