1,480 results found
    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. Ecology

    The cuticular hydrocarbon profiles of honey bee workers develop via a socially-modulated innate process

    Cassondra L Vernier et al.
    Chemical nestmate recognition in honey bee colonies depends on an innate, socially modulated developmental process.
    1. Genetics and Genomics
    2. Neuroscience

    Sleep-promoting effects of threonine link amino acid metabolism in Drosophila neuron to GABAergic control of sleep drive

    Yoonhee Ki, Chunghun Lim
    Threonine promotes sleep via down-regulation of metabotropic GABA transmission in the ellipsoid body R2 neurons that generate homeostatic sleep drive in Drosophila.
    1. Neuroscience

    Glycolysis upregulation is neuroprotective as a compensatory mechanism in ALS

    Ernesto Manzo et al.
    Degenerating motor neurons compensate for energetic deficits by upregulating glycolysis in flies and humans, with increased glucose availability improving locomotor function and lifespan in flies.
    1. Biochemistry and Chemical Biology

    A bacterial riboswitch class for the thiamin precursor HMP-PP employs a terminator-embedded aptamer

    Ruben M Atilho et al.
    Many bacteria use a tiny riboswitch aptamer to sense the thiamin precursor HMP-PP to regulate the production of another thiamin precursor HET-P to efficiently biosynthesize this essential coenzyme.
    1. Developmental Biology
    2. Structural Biology and Molecular Biophysics

    Engineering a conserved RNA regulatory protein repurposes its biological function in vivo

    Vandita D Bhat et al.
    Motif length plays a critical role in the specification of biological function within a conserved family of RNA-binding proteins.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Spatial and temporal organization of RecA in the Escherichia coli DNA-damage response

    Harshad Ghodke et al.
    Phase separated DNA-free stored forms of RecA dissolve in response to DNA damage to make RecA available for repair and recombination reactions as part of the bacterial (Escherichia coli) SOS response.
    1. Cell Biology

    Dynein–Dynactin–NuMA clusters generate cortical spindle-pulling forces as a multi-arm ensemble

    Masako Okumura et al.
    Optogenetic reconstitution reveals core functional modules and architecture of the cortical force-generating machinery in human cells.
    1. Biochemistry and Chemical Biology

    Poly(ADP-ribose) polymerase 1 searches DNA via a ‘monkey bar’ mechanism

    Johannes Rudolph et al.
    By moving between DNA segments like a child swinging on monkey bars, poly(ADP-ribose) polymerase 1 explores possible DNA damage sites more effectively.
    1. Cell Biology

    The step-wise pathway of septin hetero-octamer assembly in budding yeast

    Andrew Weems, Michael McMurray
    In budding yeast cells, slow monomeric septin GTPase activity and the cytosolic GTP:GDP ratio dictate the relative incorporation of alternative subunits during septin hetero-oligomer assembly, which proceeds by discrete, ordered steps dependent on allostery between interaction interfaces.

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