3,734 results found
    1. Cell Biology
    2. Physics of Living Systems

    Mechanically stimulated ATP release from murine bone cells is regulated by a balance of injury and repair

    Nicholas Mikolajewicz et al.
    Bone cells exposed to physiological forces release ATP through repairable membrane injury, generating an intercellular signal that conveys the destructive potential of forces and the adaptive capacity of endangered cells.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Novel ATP-cone-driven allosteric regulation of ribonucleotide reductase via the radical-generating subunit

    Inna Rozman Grinberg et al.
    Structural and functional characterization of an unanticipated mode of allosteric activity regulation in ribonucleotide reductases controlled by an ATP-cone in the radical-generating subunit.
    1. Neuroscience

    Controlling gain one photon at a time

    Gregory W Schwartz, Fred Rieke
    Single absorbed photons trigger adaptational mechanisms that help the retina maintain sensitivity across a wide range of background illumination.
    1. Neuroscience

    Analysis of protein phosphorylation in nerve terminal reveals extensive changes in active zone proteins upon exocytosis

    Mahdokht Kohansal-Nodehi et al.
    Global phosphoproteomic analysis in nerve terminal during exocytosis reveals 252 uniquely regulated phosphosites, highlighting complex regulation of active zone proteins at multiple sites and the role of specific kinases/phosphatases.
    1. Neuroscience

    Position of UNC-13 in the active zone regulates synaptic vesicle release probability and release kinetics

    Keming Zhou et al.
    The precise position of UNC-13 at the active zone near a synapse depends on the N-terminus of the protein, and the C2A domain in particular, and is essential for accelerating neurotransmitter release.
    1. Neuroscience

    Retinal direction selectivity in the absence of asymmetric starburst amacrine cell responses

    Laura Hanson et al.
    Experimental and computational models reveal how parallel 'core' mechanisms shape direction selectivity at the dendrites of starburst amacrine cells and ganglion cells in the mouse retina.
    1. Cell Biology
    2. Immunology and Inflammation

    Signal transducer and activator of transcription 5 (STAT5) paralog dose governs T cell effector and regulatory functions

    Alejandro Villarino et al.
    Asymmetrical expression dictates functional dominance of one STAT5 paralog at cellular and tissue levels despite redundancy at molecular and genomic levels.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Transient protein-protein interactions perturb E. coli metabolome and cause gene dosage toxicity

    Sanchari Bhattacharyya et al.
    Weak yet highly species-specific protein-protein interactions enhance the activity of metabolically related enzymes in bacteria at endogenous conditions, but also mean that overexpression of one partner leads to permanent non-physiological complexes and gene dosage toxicity.
    1. Microbiology and Infectious Disease

    Functional metagenomics-guided discovery of potent Cas9 inhibitors in the human microbiome

    Kevin J Forsberg et al.
    A high-throughput, activity-based selection identifies many phage-derived inhibitors of Cas9 from human fecal and oral metagenomes, with at least one inhibitor acting via a novel mechanism.

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