112 results found
    1. Cell Biology

    Super-resolution microscopy reveals majorly mono- and dimeric presenilin1/γ-secretase at the cell surface

    Abril Angélica Escamilla-Ayala et al.
    Super-resolution microscopy sets a new strategy to comprehend the membrane organization of γ-secretase at single complex resolution identifying nanodomain associations and its diffusion in situ in the living membrane.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    IP3 mediated global Ca2+ signals arise through two temporally and spatially distinct modes of Ca2+ release

    Jeffrey T Lock, Ian Parker
    Cell-wide Ca2+ signals that regulate numerous cellular functions comprise dual Ca2+ release modes through IP3 receptors, punctate transients mediated by clustered receptors and spatiotemporally diffuse release through functionally distinct receptors.
    1. Biochemistry and Chemical Biology

    A dynamic interaction between CD19 and the tetraspanin CD81 controls B cell co-receptor trafficking

    Katherine J Susa et al.
    The tetraspanin CD81 uses its ectodomain to export CD19, and the interaction of the two proteins is dynamically regulated by B cell activation state.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    An H3K9 methylation-dependent protein interaction regulates the non-enzymatic functions of a putative histone demethylase

    Gulzhan Raiymbek et al.
    A putative histone demethylase in fission yeast has non-enzymatic properties that regulates heterochromatin assembly and epigenetic inheritance.
    1. Biochemistry and Chemical Biology

    Periprotein lipidomes of Saccharomyces cerevisiae provide a flexible environment for conformational changes of membrane proteins

    Joury S van 't Klooster et al.
    Analysis of periprotein lipids by direct extraction of membrane proteins, using styrene-maleic acid polymers.
    1. Cell Biology

    β3-Adrenoceptor redistribution impairs NO/cGMP/PDE2 signalling in failing cardiomyocytes

    Sophie Schobesberger et al.
    β3-AR signalling via cGMP in cardiomyocytes is regulated via phosphodiesterase 2 and 5 degradation, it is potentially cardioprotective, but dysregulated in heart failure through signal redistribution and higher phosphodiesterase activity.
    1. Cell Biology

    Control of cell death/survival balance by the MET dependence receptor

    Leslie Duplaquet et al.
    MET acts as a dependence receptor in vivo by promoting hepatocyte apoptosis, a response induced by a caspase generated fragment able to favor calcium exchange between endoplasmic reticulum and mitochondria.
    1. Human Biology and Medicine
    2. Immunology and Inflammation

    TLR5 participates in the TLR4 receptor complex and promotes MyD88-dependent signaling in environmental lung injury

    Salik Hussain et al.
    The response to TLR4 ligands in mice and humans is modulated by TLR5, which participates in the TLR4 signaling complex.
    1. Biochemistry and Chemical Biology

    HOPS recognizes each SNARE, assembling ternary trans-complexes for rapid fusion upon engagement with the 4th SNARE

    Hongki Song et al.
    The tethering complex HOPS employs affinity for each of the 4 SNAREs to catalyze assembly of 3-SNARE intermediates, supporting an immediate burst of membrane fusion triggered by the 4th SNARE.
    1. Cell Biology
    2. Neuroscience

    Neurotrophins induce fission of mitochondria along embryonic sensory axons

    Lorena Armijo-Weingart et al.
    Induction of the fission of mitochondria-populating sensory axons is shown to be a novel biological action of neurotrophins.

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