659 results found
    1. Structural Biology and Molecular Biophysics
    2. Evolutionary Biology

    Methylation at the C-2 position of hopanoids increases rigidity in native bacterial membranes

    Chia-Hung Wu, Maja Bialecka-Fornal, Dianne K Newman
    Methylation specifically enhances the ability of hopanoids to rigidify membranes under physiologically relevant conditions, which impacts the current interpretation of the 2-methylhopane fossil record.
    1. Cell Biology
    2. Developmental Biology

    Reduced matrix rigidity promotes neonatal cardiomyocyte dedifferentiation, proliferation and clonal expansion

    Yfat Yahalom-Ronen, Dana Rajchman ... Eldad Tzahor
    Compliant matrix provides a permissive micoenvironment for cardiomyocyte dedifferentiation, cell division and expansion, and thus may open a new avenue towards cardiac regeneration.
    1. Cell Biology
    2. Physics of Living Systems

    Integrin α5β1 nano-presentation regulates collective keratinocyte migration independent of substrate rigidity

    Jacopo Di Russo, Jennifer L Young ... Joachim P Spatz
    The use of nanopatterned hydrogels and specific integrin α5β1 peptidomimetic revealed that keratinocytes require an optimum inter-ligand spacing to best propagate intercellular forces and efficiently coordinate cell sheet migration.
    1. Cell Biology
    2. Physics of Living Systems

    Caveolin-1 protects endothelial cells from extensive expansion of transcellular tunnel by stiffening the plasma membrane

    Camille Morel, Eline Lemerle ... Emmanuel Lemichez
    Caveolin-1 controls the width of transendothelial cell tunnels via a direct or indirect effect on membrane bending rigidity.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Microtubules soften due to cross-sectional flattening

    Edvin Memet, Feodor Hilitski ... L Mahadevan
    A combination of experiments, theory, and simulations shows that the elastic softening of microtubules when they are bent arises due to the flattening of their tubular cross-section.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Substrate stiffness impacts early biofilm formation by modulating Pseudomonas aeruginosa twitching motility

    Sofia Gomez, Lionel Bureau ... Sigolene Lecuyer
    The spatial organization of pathogenic bacteria into microcolonies can be shaped by the stiffness of the substrate that they colonize, via modifications of the bacterial motility.
    1. Evolutionary Biology
    2. Immunology and Inflammation

    Homology-guided identification of a conserved motif linking the antiviral functions of IFITM3 to its oligomeric state

    Kazi Rahman, Charles A Coomer ... Alex A Compton
    A disease-associated polymorphism in a related protein that regulates neurotransmitter release reveals that antiviral protein IFITM3 forms oligomers to rigidify membranes and inhibit virus fusion with cells.
    1. Immunology and Inflammation

    Different TCR-induced T lymphocyte responses are potentiated by stiffness with variable sensitivity

    Michael Saitakis, Stéphanie Dogniaux ... Claire Hivroz
    Multiple functions of human T lymphocytes are shown to be potentiated within a wide range of physiological cell and tissue rigidities.
    1. Structural Biology and Molecular Biophysics

    Ligand binding remodels protein side-chain conformational heterogeneity

    Stephanie A Wankowicz, Saulo H de Oliveira ... James S Fraser
    Protein conformational heterogeneity changes upon ligand binding are influenced by ligand properties and can modulate the free energy of binding.
    1. Cell Biology
    2. Developmental Biology

    DNA-damage induced cell death in yap1;wwtr1 mutant epidermal basal cells

    Jason KH Lai, Pearlyn JY Toh ... Timothy E Saunders
    Substrate rigidity modulates genomic stress in the epidermal basal cells of the developing zebrafish embryo and Yap1 and Wwtr1 are required for its survival.

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