1,757 results found
    1. Neuroscience

    Circuits that encode and guide alcohol-associated preference

    Kristin M Scaplen et al.
    Alcohol modifies dopaminergic microcircuits required for acquisition and expression of sensory memories in Drosophila resulting in a shift in behavioral response from malleable to inflexible.
    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. 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
    2. Developmental Biology

    Maternal spindle transfer overcomes embryo developmental arrest caused by ooplasmic defects in mice

    Nuno Costa-Borges et al.
    Maternal spindle transfer is a feasible approach to enhance embryonic developmental of compromised oocytes, which can represent a new strategy for patients with forms of infertility refractory to current treatments.
    1. Neuroscience

    MeCP2 in cholinergic interneurons of nucleus accumbens regulates fear learning

    Ying Zhang et al.
    Robust fear learning deficits and decreased tonic activity of NAc cholinergic interneurons caused by depletion of MeCP2 could be attributed to an elevation in α2-containing GABAA receptors.
    1. Structural Biology and Molecular Biophysics

    ER-luminal [Ca2+] regulation of InsP3 receptor gating mediated by an ER-luminal peripheral Ca2+-binding protein

    Horia Vais et al.
    Calcium release from the endoplasmic reticulum through the IP3 receptor ion channel is strongly regulated by a calcium-binding protein in the lumen of the endoplasmic reticulum.
    1. Chromosomes and Gene Expression

    Live-cell single particle imaging reveals the role of RNA polymerase II in histone H2A.Z eviction

    Anand Ranjan et al.
    Histone variant H2A.Z is deposited near transcription start sites by the chromatin remodeler SWR1 and seems to be removed by RNA polymerase II at an early stage of transcription elongation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Conformational distributions of isolated myosin motor domains encode their mechanochemical properties

    Justin R Porter et al.
    Shifts in the balance between nucleotide-favorable and nucleotide-unfavorable conformations of myosin motors encode duty ratios and ADP release rates, demonstrating the power of an ensemble perspective for uncovering sequence-function relationships.
    1. Neuroscience

    Hippocampal and cortical mechanisms at retrieval explain variability in episodic remembering in older adults

    Alexandra N Trelle et al.
    The strength of pattern completion during memory retrieval, indexed by hippocampal activity and cortical reinstatement, explains within- and across-individual variability in episodic memory in older adults.
    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.

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