700 results found
    1. Structural Biology and Molecular Biophysics

    A putative structural mechanism underlying the antithetic effect of homologous RND1 and RhoD GTPases in mammalian plexin regulation

    Yanyan Liu et al.
    Small Rho GTPases confer up- and downregulation in mammalian plexin signaling by differential interactions with cell membrane.
    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

    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
    2. Computational and Systems Biology

    Periodic propagating waves coordinate RhoGTPase network dynamics at the leading and trailing edges during cell migration

    Alfonso Bolado-Carrancio et al.
    Different RhoA and Rac1 dynamics at the cell front and rear are coordinated through periodic GTPase waves, which define the minimal autonomous biochemical machinery necessary and sufficient for cell migration.
    1. Cell Biology
    2. Neuroscience

    Action potential-coupled Rho GTPase signaling drives presynaptic plasticity

    Shataakshi Dube O'Neil et al.
    Proteomic and genetic analysis discovers a new cytoskeletal mechanism of presynaptic short-term plasticity common across neuronal cell types.
    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. 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. Physics of Living Systems

    How cells determine the number of polarity sites

    Jian-geng Chiou et al.
    Minimal essential features of Rho GTPase systems are elucidated that regulate the number of distinct domains developed by a cell’s polarity machinery, which in turn governs cell shape.
    1. Cell Biology

    In vivo identification of GTPase interactors by mitochondrial relocalization and proximity biotinylation

    Alison K Gillingham et al.
    Relocation of Rab, Ras and Rho family GTPases to the surface of mitochondria enables efficient identification of their effectors, exchange factors and GAPs by proximity biotinylation.
    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.

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