290 results found
    1. Cell Biology

    Curvature-induced expulsion of actomyosin bundles during cytokinetic ring contraction

    Junqi Huang et al.
    Cytokinetic actomyosin ring disassembly occurs through a novel mechanism in which the increased ring curvature, generated through contraction, itself promotes the disassembly process.
    1. Cell Biology

    Nanoscale architecture of the Schizosaccharomyces pombe contractile ring

    Nathan A McDonald et al.
    Super-resolution microscopy reveals the nanoscale molecular architecture of 29 protein components of a eukaryotic contractile ring relative to the membrane.
    1. Cell Biology

    Cooperation between tropomyosin and α-actinin inhibits fimbrin association with actin filament networks in fission yeast

    Jenna R Christensen et al.
    The contractile ring actin binding proteins tropomyosin Cdc8 and a-actinin Ain1 synergize to effectively compete with the endocytic actin patch protein fimbrin Fim1 for associating with F-actin networks.
    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. Cell Biology
    2. Physics of Living Systems

    Interplay of cell dynamics and epithelial tension during morphogenesis of the Drosophila pupal wing

    Raphaël Etournay et al.
    Autonomous patterns of cell contraction in the context of localized apical extracellular matrix constraints specify tissue stresses that reshape the wing epithelium.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Bacterial Proliferation: Off the wall

    Dennis Claessen, Gilles P van Wezel
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    1. Human Biology and Medicine
    2. Neuroscience

    Point of View: Predictive regulation and human design

    Peter Sterling
    Why does the human regulatory system, which evolution tuned for small satisfactions, now constantly demand 'more'?
    1. Cell Biology
    2. Evolutionary Biology

    Multicellularity: How contraction has shaped evolution

    Mukund Thattai
    Two new unicellular organisms reveal that coordinated contractions of groups of cells using actomyosin predated animal multicellularity during evolution.
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    1. Microbiology and Infectious Disease

    Bacterial Protein Secretion: Looking inside an injection system

    Sophie A Howard, Alain Filloux
    The proteins injected by bacteria into eukaryotic organisms can lead to fates as diverse as death and metamorphosis.
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    1. Neuroscience

    Acute intermittent hypoxia enhances corticospinal synaptic plasticity in humans

    Lasse Christiansen et al.
    Acute intermittent hypoxia is a noninvasive approach that enhances corticospinal function in humans, likely through alterations in corticospinal-motoneuronal synaptic transmission.

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