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    1. Chromosomes and Gene Expression

    Multi-protein bridging factor 1(Mbf1), Rps3 and Asc1 prevent stalled ribosomes from frameshifting

    Jiyu Wang et al.
    An eukaryotic specific system cooperates with the ribosome quality control pathway to maintain the reading frame during translation of slowly translated sequences.
    1. Cancer Biology

    Tsc2 disruption in mesenchymal progenitors results in tumors with vascular anomalies overexpressing Lgals3

    Peter J Klover et al.
    Tsc2 inactivation in mouse mesenchymal progenitors produced tumors with vascular anomalies reminiscent of human angiomyolipomas, and a gene expression signature in Tsc2-deficient tissues which included Lgals3, as a novel potential biomarker for TSC1/2 loss.
    1. Structural Biology and Molecular Biophysics

    Rac1 GTPase activates the WAVE regulatory complex through two distinct binding sites

    Baoyu Chen et al.
    The cryo-electron microscopy structure of an assembly of the WAVE Regulatory Complex and its activator, the Rac GTPase, plus complementary biochemistry and biophysics, reveal a novel activation mechanism involving two distinct Rac binding sites.
    1. Neuroscience

    Alpha protocadherins and Pyk2 kinase regulate cortical neuron migration and cytoskeletal dynamics via Rac1 GTPase and WAVE complex in mice

    Li Fan et al.
    A general cytoplasmic signaling mechanism for the novel functions of diverse alpha protocadherins in cortical neuron migration and actin cytoskeletal dynamics as well as dendrite morphogenesis in the brain.
    1. Cancer Biology
    2. Cell Biology

    Rac1-mediated membrane raft localization of PI3K/p110β is required for its activation by GPCRs or PTEN loss

    Onur Cizmecioglu et al.
    A unique two-step mechanism of plasma membrane recruitment and activation governs G-protein-coupled receptor mediated PI3K signaling.
    1. Cell Biology
    2. Developmental Biology

    Regulation of cell protrusions by small GTPases during fusion of the neural folds

    Ana Rolo et al.
    The completion of neural tube closure requires small GTPase-regulated membrane protrusions from non-neural ectoderm cells at the tips of the neural folds.
    1. Chromosomes and Gene Expression

    Histone H2B ubiquitylation represses gametogenesis by opposing RSC-dependent chromatin remodeling at the ste11 master regulator locus

    Philippe Materne et al.
    Building on previous work (Materne et al., 2015), it is shown that the ubiquitylation of histone H2B represses cell differentiation by opposing chromatin remodeling at the promoter of the master regulator of gametogenesis, ste11
    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. Cell Biology
    2. Developmental Biology

    Novel functions for integrin-associated proteins revealed by analysis of myofibril attachment in Drosophila

    Hannah J Green et al.
    Integrin and actin associated proteins are resolved into four layers within myofibril attachments, an architecture requiring balanced positive and negative regulation of integrin adhesion with integrated mechanotransduction and actin pathways.
    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.