2,331 results found
    1. Cell Biology

    Identification of ubiquitin Ser57 kinases regulating the oxidative stress response in yeast

    Nathaniel L Hepowit et al.
    Ser57 phosphorylation of ubiquitin protects the cell during proteotoxic stress.
    1. Cell Biology

    Single-cell dynamics of pannexin-1-facilitated programmed ATP loss during apoptosis

    Hiromi Imamura et al.
    Cleavage of pannexin-1 channel by caspases facilitates the loss of intracellular ATP level and attenuates glycolytic metabolism of apoptotic cells.
    1. Medicine

    Loss of adaptive capacity in asthmatic patients revealed by biomarker fluctuation dynamics after rhinovirus challenge

    Anirban Sinha et al.
    Fluctuation of biomarkers is a novel way of studying system stability during stable and unstable states of health and disease, revealing the systems' ability to cope with external perturbations.
    1. Developmental Biology
    2. Physics of Living Systems

    Size-dependent patterns of cell proliferation and migration in freely-expanding epithelia

    Matthew A Heinrich et al.
    Epithelia exhibit size-dependent growth dynamics caused by a decoupling between boundary and bulk cellular dynamics that enable robust expansion and drive cell cycling, collective migration, and tissue-spanning vortices.
    1. Developmental Biology
    2. Neuroscience

    Glial insulin regulates cooperative or antagonistic Golden goal/Flamingo interactions during photoreceptor axon guidance

    Hiroki Takechi et al.
    Timely regulation of growth cone dynamics, including filopodial and cytoskeletal rearrangements through phosphorylation signals from glial cells, shapes the photoreceptor axon targeting.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Dynamic Na+/H+ exchanger 1 (NHE1) – calmodulin complexes of varying stoichiometry and structure regulate Ca2+-dependent NHE1 activation

    Lise M Sjøgaard-Frich et al.
    NHE1-CaM complexes of multiple stoichiometries regulate cellular Ca2+-dependent NHE1 activity and can contribute to NHE1 dimerization, the latter shown by the NMR structure of CaM linking two NHE1 cytosolic tails.
    1. Evolutionary Biology

    Convergent changes in muscle metabolism depend on duration of high-altitude ancestry across Andean waterfowl

    Neal J Dawson et al.
    Changes in pathways of lipid oxidation, glycolysis, and mitochondrial oxidative phosphorylation are common strategies to cope with high-altitude hypoxia, but some changes require longer evolutionary time to arise.
    1. Microbiology and Infectious Disease

    Membrane voltage dysregulation driven by metabolic dysfunction underlies bactericidal activity of aminoglycosides

    Giancarlo Noe Bruni, Joel M Kralj
    Aminoglycosides are a class of antibiotics that can kill Escherichia coli by building up internal voltage through disrupting the normal consumption of ATP.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    mRNA stem-loops can pause the ribosome by hindering A-site tRNA binding

    Chen Bao et al.
    By sterically hindering tRNA binding and inhibiting translation elongation, mRNA stem-loops can modulate gene expression.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Conformational distributions of isolated myosin motor domains encode their mechanochemical properties

    Justin R Porter et al.
    Shifts in the balance between nucleotide-favorable and nucleotide-unfavorable conformations of myosin motors encode duty ratios and ADP release rates, demonstrating the power of an ensemble perspective for uncovering sequence-function relationships.

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