1,193 results found
    1. Physics of Living Systems

    Cell-sized confinement controls generation and stability of a protein wave for spatiotemporal regulation in cells

    Shunshi Kohyama, Natsuhiko Yoshinaga ... Nobuhide Doi
    A cell-sized fully confined space significantly controls the emergence and stability of a protein wave, resulting in intracellular spatiotemporal regulation driven by a reaction-diffusion mechanism.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Signaling diversity enabled by Rap1-regulated plasma membrane ERK with distinct temporal dynamics

    Jeremiah Keyes, Ambhighainath Ganesan ... Jin Zhang
    An individual extracellular signal regulates multiple cellular actions through differences in the temporal dynamics of spatially distinct populations of the central signaling enzyme, extracellular-signal regulated kinase.
    1. Cell Biology

    Spatiotemporal regulation of autophagy during Caenorhabditis elegans aging

    Jessica T Chang, Caroline Kumsta ... Malene Hansen
    Autophagic flux assays in the nematode Caenorhabditis elegans suggest that autophagy decreases during normal aging, whereas long-lived daf-2 and glp-1 mutants maintain autophagic capacity in distinct spatiotemporal-specific manners to extend lifespan.
    1. Cell Biology
    2. Computational and Systems Biology

    Bistability of a coupled Aurora B kinase-phosphatase system in cell division

    Anatoly V Zaytsev, Dario Segura-Peña ... Ekaterina L Grishchuk
    Self-activating Aurora B kinase, opposed by an inhibitory phosphatase, forms spatial phosphorylation patterns during cell division.
    1. Cell Biology
    2. Developmental Biology

    Cytoskeletal tension and Bazooka tune interface geometry to ensure fusion fidelity and sheet integrity during dorsal closure

    Piyal Taru Das Gupta, Maithreyi Narasimha
    Restoration of molecular and morphological symmetry and mechanical integrity following epithelial fusion relies on adaptive changes that are mediated by cytoskeletal tension and Bazooka dependent modulation of fusing interface geometry.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Light-regulated allosteric switch enables temporal and subcellular control of enzyme activity

    Mark Shaaya, Jordan Fauser ... Andrei V Karginov
    Light-sensitive allosteric switch module, a broadly applicable protein engineering method, is used for the regulation of protein activity with tight temporal control and spatial precision.
    1. Cell Biology
    2. Neuroscience

    Miro1-dependent mitochondrial dynamics in parvalbumin interneurons

    Georgina Kontou, Pantelis Antonoudiou ... Josef T Kittler
    Cell imaging and electrophysiology in the mouse hippocampus reveal a crucial role for the spatiotemporal regulation of mitochondrial dynamics in PV+ interneurons on cell morphology, network activity, and behavior.
    1. Physics of Living Systems

    Controlling contractile instabilities in the actomyosin cortex

    Masatoshi Nishikawa, Sundar Ram Naganathan ... Stephan W Grill
    Combining quantitative biological experiment and physical description of actomyosin cortex reveals a contractile instability in the cortex of C. elegans embryo, and its biochemical control in order to robustly drive morphogenetic events.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Extraction of active RhoGTPases by RhoGDI regulates spatiotemporal patterning of RhoGTPases

    Adriana E Golding, Ilaria Visco ... William M Bement
    Through visualization of directly-labeled RhoGTPase both in vitro and in vivo, RhoGDI is found to spatiotemporally regulate RhoGTPase activity through the extraction of active RhoGTPase.
    1. Cell Biology
    2. Developmental Biology

    Optogenetic investigation of BMP target gene expression diversity

    Katherine W Rogers, Mohammad ElGamacy ... Patrick Müller
    Optogenetic manipulation of BMP signaling indicates that diversity in BMP-dependent gene expression is not well explained by differential responses to BMP, and combinatorial signaling is a major driver of diversity.

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