709 results found
    1. Neuroscience

    Memory recall involves a transient break in excitatory-inhibitory balance

    Renée S Koolschijn et al.
    Hippocampal activity during memory recall predicts a transient increase in the ratio between neocortical glutamate and GABA, thereby allowing otherwise dormant memories to be released.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Mutational analysis to explore long-range allosteric couplings involved in a pentameric channel receptor pre-activation and activation

    Solène N Lefebvre et al.
    A pentameric channel-receptor was studied by combining allosteric mutations, electrophysiology, fluorescent reporters and normal mode analysis, to dissect the long-range allosteric couplings specifically involved in its pre-activation and activation.
    1. Ecology

    A beta-glucosidase of an insect herbivore determines both toxicity and deterrence of a dandelion defense metabolite

    Meret Huber et al.
    An insect digestive enzyme metabolizes a plant defense compound and thereby modulates herbivore performance and host plant choice, which in turn may alter plant defense evolution in nature.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    An improved fluorescent noncanonical amino acid for measuring conformational distributions using time-resolved transition metal ion FRET

    William N Zagotta et al.
    Time-resolved transition metal ion fluorescence resonance energy transfer using a fluorescent, noncanonical amino acid donor and metal ion acceptor measures distances and distance distributions in proteins, allowing the equilibrium distributions among conformational states to be accurately determined.
    1. Biochemistry and Chemical Biology
    2. Physics of Living Systems

    Mechanically transduced immunosorbent assay to measure protein-protein interactions

    Christopher J Petell et al.
    METRIS is a method that reports a mechanical readout of protein-protein interactions and due to its unique properties, it will allow many protein-protein interactions to be quantitatively measured easily that are currently laborious to measure with conventional methods.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Single-molecule imaging reveals the concerted release of myosin from regulated thin filaments

    Quentin M Smith et al.
    Direct single molecule visualization of striated muscle relaxation using thin filament tightropes reveals the concerted release of myosins, with implications for models of muscle function.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Structural basis for diguanylate cyclase activation by its binding partner in Pseudomonas aeruginosa

    Gukui Chen et al.
    The diguanylate cyclase activity of SiaD is activated by its binding partner SiaC thourgh a dynamic mechanism of promoting the formation of active SiaD dimers.
    1. Genetics and Genomics

    The dual role of amyloid-β-sheet sequences in the cell surface properties of FLO11-encoded flocculins in Saccharomyces cerevisiae

    Clara Bouyx et al.
    The role of amyloid-β-aggregation sequence and of the various domains in the physiological function of the FLO11-encoded adhesin in the yeast Saccharomyces cerevisiae are disclosed in this report.
    1. Structural Biology and Molecular Biophysics

    N501Y mutation of spike protein in SARS-CoV-2 strengthens its binding to receptor ACE2

    Fang Tian et al.
    Spike protein of SARS-CoV-2 with mutation N501Y shows a faster association rate, slower dissociation rate, and higher binding probability and unbinding force to its human receptor protein ACE2, leading to higher transmission.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    An essential, kinetoplastid-specific GDP-Fuc: β-D-Gal α-1,2-fucosyltransferase is located in the mitochondrion of Trypanosoma brucei

    Giulia Bandini et al.
    The activity, localization, and essentiality of TbFUT1, together with its ability to complement Leishmania parasites lacking the homologous gene, suggest the presence of an uncommon and conserved mitochondrial fucosylation pathway required for kinetoplastid parasites viability.

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