Browse our latest Physics of Living Systems articles

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    1. Physics of Living Systems

    Body size-dependent energy storage causes Kleiber’s law scaling of the metabolic rate in planarians

    Albert Thommen et al.
    A combination of experimental and theoretical analysis identifies body size-dependent energy storage as the physiological cause of 3/4-power law scaling of the metabolic rate in planarians.
    1. Chromosomes and Gene Expression
    2. Physics of Living Systems

    DNA sequence encodes the position of DNA supercoils

    Sung Hyun Kim et al.
    Single-molecule experiments reveal that plectonemic supercoils occupy specific positions on DNA and a physical model relates this to the intrinsic curvature, providing an insight into how supercoiling organizes the genome.
    1. Physics of Living Systems

    Measuring cis-regulatory energetics in living cells using allelic manifolds

    Talitha L Forcier et al.
    A novel strategy is presented for quantitatively measuring protein-DNA and protein-protein interactions that regulate transcription in living cells.
    1. Physics of Living Systems

    Downsizing the molecular spring of the giant protein titin reveals that skeletal muscle titin determines passive stiffness and drives longitudinal hypertrophy

    Ambjorn Brynnel et al.
    Genetically altering the size of the molecular spring element in the giant protein titin established that titin determines the stiffness of skeletal muscle and the number of sarcomeres in series.
    1. Developmental Biology
    2. Physics of Living Systems

    Theoretical tool bridging cell polarities with development of robust morphologies

    Silas Boye Nissen et al.
    Biological shapes and morphological transitions can emerge from combining directed interactions between cells with apical-basal and planar cell polarity.
    1. Neuroscience
    2. Physics of Living Systems

    Arterial smooth muscle cell PKD2 (TRPP1) channels regulate systemic blood pressure

    Simon Bulley et al.
    Arterial myocyte PKD2 channels are activated by vasoconstrictor stimuli, which increases blood pressure, are upregulated during hypertension and cell-specific knockout in vivo reduces both physiological blood pressure and hypertension.
    1. Cell Biology
    2. Physics of Living Systems

    Morphogenetic degeneracies in the actomyosin cortex

    Sundar Ram Naganathan et al.
    Distinct molecular functions contribute to the same material property at larger scales leading to degenerate functionality.
    1. Cell Biology
    2. Physics of Living Systems

    Mechanically stimulated ATP release from murine bone cells is regulated by a balance of injury and repair

    Nicholas Mikolajewicz et al.
    Bone cells exposed to physiological forces release ATP through repairable membrane injury, generating an intercellular signal that conveys the destructive potential of forces and the adaptive capacity of endangered cells.
    1. Computational and Systems Biology
    2. Physics of Living Systems

    The Ca2+ transient as a feedback sensor controlling cardiomyocyte ionic conductances in mouse populations

    Colin M Rees et al.
    Feedback sensing of the intracellular calcium concentration suffices to reproduce the diversity of ionic conductances underlying normal cardiac electromechanical function in a genetically diverse population of mice.
    1. Computational and Systems Biology
    2. Physics of Living Systems

    Optogenetics enables real-time spatiotemporal control over spiral wave dynamics in an excitable cardiac system

    Rupamanjari Majumder et al.
    Free optical steering of spiral waves by attraction-based dragging of their cores in optogenetically modified cardiac tissue.