3,247 results found
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Structural basis for subtype-specific inhibition of the P2X7 receptor

    Akira Karasawa, Toshimitsu Kawate
    Crystal structures of a mammalian P2X7 receptor and structure-based functional studies reveal a novel drug-binding site and subtype-specific conformational rearrangements required for channel opening.
    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. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Molecular structure of human KATP in complex with ATP and ADP

    Kenneth Pak Kin Lee et al.
    MgADP binding to the high-affinity 'consensus' ATPase active site of SUR1 and remodeling of the L0-loop (lasso region) overrides tonic ATP inhibition of KATP channels.
    1. Human Biology and Medicine
    2. Neuroscience

    Beyond excitation/inhibition imbalance in multidimensional models of neural circuit changes in brain disorders

    Cian O'Donnell et al.
    Computational modeling and analysis of mouse neural population data finds that the excitation/inhibition imbalance theory of brain disorders is too limited to account for key changes in neural activity statistics.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    The nucleosomal acidic patch relieves auto-inhibition by the ISWI remodeler SNF2h

    Nathan Gamarra et al.
    Auto-inhibition of ISWI-family ATP-dependent chromatin remodelers is relieved by a conserved feature of the nucleosome.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Autoinhibition of Munc18-1 modulates synaptobrevin binding and helps to enable Munc13-dependent regulation of membrane fusion

    Ewa Sitarska et al.
    Biophysical and functional data strongly support the notion that Munc18-1 acts as a template to assemble the neuronal SNARE complex, and that inhibition of this activity underlies diverse forms of regulation of neurotransmitter release.
    1. Cancer Biology
    2. Cell Biology

    Autophagy inhibition overcomes multiple mechanisms of resistance to BRAF inhibition in brain tumors

    Jean M Mulcahy Levy et al.
    Pre-clinical and patient data show that inhibition of autophagy with an approved, inexpensive, well-tolerated drug can overcome resistance to BRAFV600E inhibition in multiple brain tumor subtypes with different resistance mechanisms.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Point of View: Is cell size a spandrel?

    Ariel Amir
    Analysis of experiments on bacteria suggests that the dependence of cell size on growth rate is not an adaptation but a causal consequence of a regulatory mechanism that controls DNA replication.

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