1,297 results found
  1. Episode 71: December 2020

    In this episode, we hear about exercise and cancer, mental health in academia, sea slugs, anti-nausea drugs and how the brain remembers unpleasant tastes.
    1. Physics of Living Systems

    Epithelial colonies in vitro elongate through collective effects

    Jordi Comelles et al.
    Spontaneous elongation of epithelial colonies is related to the orientation of the mean nematic cell elongation field, as shown and tested with experiments and theory.
    1. Microbiology and Infectious Disease

    Microbiota functional activity biosensors for characterizing nutrient metabolism in vivo

    Darryl A Wesener et al.
    A method has been developed to characterize the expressed biochemical activities of gut microbial communities using retrievable, microscopic, fluorescent-labeled glass beads containing chemically bound surface biomolecules.
    1. Structural Biology and Molecular Biophysics

    Time-resolved serial femtosecond crystallography reveals early structural changes in channelrhodopsin

    Kazumasa Oda et al.
    Time-resolved serial femtosecond crystallography revealed retinal kink and early changes in channelrhodopsin, which leads to the ion pore formation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Disease-related mutations in PI3Kγ disrupt regulatory C-terminal dynamics and reveal a path to selective inhibitors

    Manoj K Rathinaswamy et al.
    The c-terminus of PI3K plays a key role in regulating kinase activity, with c-terminal disease-linked mutations leading to either activation or inhibition, which reveal a path to specific inhibitors.
    1. Plant Biology

    Temperature-dependent fasciation mutants provide a link between mitochondrial RNA processing and lateral root morphogenesis

    Kurataka Otsuka et al.
    Temperature-dependent fasciation mutants of Arabidopsis unexpectedly connect mitochondrial RNA processing to the control of cell proliferation during lateral root morphogenesis via electron transport chain activity and reactive oxygen species production.
    1. Cell Biology
    2. Computational and Systems Biology

    Kinesin-4 KIF21B limits microtubule growth to allow rapid centrosome polarization in T cells

    Peter Jan Hooikaas et al.
    Kinesin-4 KIF21B promotes rapid reorientation of the microtubule network during formation of immunological synapse in T cells by acting as a pausing and catastrophe-inducing factor that keeps microtubules short.
    1. Cell Biology

    Complementary α-arrestin-ubiquitin ligase complexes control nutrient transporter endocytosis in response to amino acids

    Vasyl Ivashov et al.
    Metabolic cues enlist ubiquitin ligase adaptors for the selective control of cellular nutrient acquisition strategies.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    A mechanism for the extension and unfolding of parallel telomeric G-quadruplexes by human telomerase at single-molecule resolution

    Bishnu P Paudel et al.
    Human telomerase unfolds and extends parallel G-quadruplexes using a unique mechanism involving its RNA template.
    1. Neuroscience

    A limbic circuit selectively links active escape to food suppression

    Estefania P Azevedo et al.
    Lateral septum neurotensin neurons are active in response to stress where escape is a viable strategy and decrease consumption via effects on hypothalamic pathways regulating food intake.

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