1,585 results found
    1. Cell Biology
    2. Neuroscience

    Presynaptic APP levels and synaptic homeostasis are regulated by Akt phosphorylation of huntingtin

    Julie Bruyère et al.
    Reducing Akt-mediated huntingtin phosphorylation decreases APP accumulation at the synapse by reducing its anterograde axonal transport and ameliorates learning and memory in a mouse model of familial Alzheimer disease.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    A conserved RNA degradation complex required for spreading and epigenetic inheritance of heterochromatin

    Gergana Shipkovenska et al.
    Genetic and biochemical studies show that a conserved ribosome biogenesis complex also localizes to heterochromatin, where it triggers RNA degradation and promotes the spreading and epigenetic inheritance of histone methylation.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    TANGO1 membrane helices create a lipid diffusion barrier at curved membranes

    Ishier Raote et al.
    TANGO1 creates a barrier to control lipid and protein flux across fused secretory compartments.
    1. Cell Biology

    Bmal1 integrates mitochondrial metabolism and macrophage activation

    Ryan K Alexander et al.
    Macrophage Bmal1 controls the timing of the glycolytic to oxidative metabolism transition that dictates the extent of Hif-1a activation and the associated inflammatory response.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Universally high transcript error rates in bacteria

    Weiyi Li, Michael Lynch
    Fundamental details of the rate and molecular spectrum of transcript errors were revealed in four bacterial species, providing novel insights into transcriptional fidelity and RNA quality-control in prokaryotes.
    1. Chromosomes and Gene Expression

    A tudor domain protein, SIMR-1, promotes siRNA production at piRNA-targeted mRNAs in C. elegans

    Kevin I Manage et al.
    SIMR-1 acts downstream of the piRNA pathway to promote siRNA amplification by the Mutator complex and localizes to perinuclear foci distinct from Mutator foci, P granules and Z granules.
    1. Genetics and Genomics
    2. Human Biology and Medicine

    Distinct mitochondrial defects trigger the integrated stress response depending on the metabolic state of the cell

    Eran Mick et al.
    Mitochondrial electron transport chain dysfunction triggers the integrated stress response due to an asparagine deficiency downstream of impaired NADH oxidation in proliferating myoblasts, but not in differentiated myotubes.
    1. Structural Biology and Molecular Biophysics

    A CLC-ec1 mutant reveals global conformational change and suggests a unifying mechanism for the CLC Cl/H+ transport cycle

    Tanmay S Chavan et al.
    Crystallography together with electron-resonance spectroscopy, molecular-dynamics simulations, and transport measurements reveal the molecular details of protein conformational change, and how this change contributes to function in a CLC-type chloride/proton exchanger.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures and functional properties of CALHM channels of the human placenta

    Katarzyna Drożdżyk et al.
    Members of the calcium homeostasis modulator family expressed in the placenta form large channels with unknown activation properties that harbor a lipid bilayer on the inside of a cylindrical pore.

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