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    1. Cell Biology
    2. Computational and Systems Biology

    A positive-feedback-based mechanism for constriction rate acceleration during cytokinesis in Caenorhabditis elegans

    Renat N Khaliullin et al.
    Positive feedback between contractile ring myosin and compression-driven cortical flow can explain the exponential accumulation of contractile ring components and constriction rate acceleration that ensures timely cell separation during cytokinesis.
    1. Structural Biology and Molecular Biophysics

    An expanded allosteric network in PTP1B by multitemperature crystallography, fragment screening, and covalent tethering

    Daniel A Keedy et al.
    By measuring how multiple conformations shift in response to temperature, a new allosteric binding site is discovered for the phosphatase PTP1B.
    1. Biochemistry and Chemical Biology

    Translation attenuation by minocycline enhances longevity and proteostasis in old post-stress-responsive organisms

    Gregory M Solis et al.
    Directly targeting the ribosome to attenuate translation partly mimics the integrated stress response, increasing lifespan and preserving protein folding capacity even in older individuals with dysfunctional stress response signaling.
    1. Cell Biology

    Waves of actin and microtubule polymerization drive microtubule-based transport and neurite growth before single axon formation

    Amy M Winans et al.
    Waves of polymerizing actin work in concert with microtubule polymerization to lay down more microtubules tracks and transiently increase microtubule-based transport into the growing neurite.
    1. Neuroscience

    Body side-specific control of motor activity during turning in a walking animal

    Matthias Gruhn et al.
    Turning in an insect is the combined result of body-side-specific modifications in processing of local sensory feedback, and modification of local central pattern generator activity.
    1. Developmental Biology
    2. Plant Biology

    Mechanical stress contributes to the expression of the STM homeobox gene in Arabidopsis shoot meristems

    Benoît Landrein et al.
    Mechanical stress promotes the expression of the homeobox gene and meristem master regulator STM, synergistically and independently from auxin depletion.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Cytotoxic T cells swarm by homotypic chemokine signalling

    Jorge Luis Galeano Niño et al.
    Killer T cells swarm around tumour targets by accelerating the recruitment of distant T cells, which upon arrival and target engagement augment the chemotactic signal in a positive feedback loop.
    1. Neuroscience

    Upregulation of TRPM3 in nociceptors innervating inflamed tissue

    Marie Mulier et al.
    The expression and function of the cation channel TRPM3 is strongly increased in sensory neurons innervating inflamed tissue, likely contributing to inflammatory hyperalgesia and persistent pain.
    1. Neuroscience

    Quantitative properties of a feedback circuit predict frequency-dependent pattern separation

    Oliver Braganza et al.
    The feedback inhibitory microcircuit of the dentate gyrus likely boosts pattern separation during gamma oscillations.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Ca2+-dependent release of synaptotagmin-1 from the SNARE complex on phosphatidylinositol 4,5-bisphosphate-containing membranes

    Rashmi Voleti et al.
    Ca2+-free synaptotagmin-1 binds to neuronal SNARE complexes anchored on nanodiscs, and Ca2+ releases this interaction to induce tight, specific binding to PIP2-containing membranes.