23 results found
    1. Biochemistry and Chemical Biology

    A secretory pathway kinase regulates sarcoplasmic reticulum Ca2+ homeostasis and protects against heart failure

    Adam J Pollak et al.
    Protein phosphorylation within the lumen of the secretory pathway regulates cardiac function.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structures reveal opening of the store-operated calcium channel Orai

    Xiaowei Hou et al.
    The structure of the calcium channel Orai in an open conformation reveals a dilated pore and gives insight into mechanisms of ion permeation and calcium selectivity.
    1. Developmental Biology

    Mechanism and consequence of abnormal calcium homeostasis in Rett syndrome astrocytes

    Qiping Dong et al.
    Increased spontaneous calcium activity in Rett syndrome astrocytes is a key cell-autonomous phenotype that affects synaptic function and network activity.
    1. Biochemistry and Chemical Biology

    Gq activity- and β-arrestin-1 scaffolding-mediated ADGRG2/CFTR coupling are required for male fertility

    Dao-Lai Zhang et al.
    ADGRG2, an orphan GPCR, when coupled to CFTR via a regional Gq signaling on the apical membrane, acts to regulate efferent duct fluid reabsorption making it essential for male fertility.
    1. Cell Biology

    GRAM domain proteins specialize functionally distinct ER-PM contact sites in human cells

    Marina Besprozvannaya et al.
    Functionally distinct ER-PM domains in human cells are defined by conserved GRAM domain containing proteins.
    1. Cell Biology
    2. Human Biology and Medicine

    Defective STIM-mediated store operated Ca2+ entry in hepatocytes leads to metabolic dysfunction in obesity

    Ana Paula Arruda et al.
    Store operated calcium entry is defective in hepatocytes of obese mice, and restoring this process is sufficient to improve glucose metabolism.
    1. Cell Biology
    2. Immunology and Inflammation

    T-cell calcium dynamics visualized in a ratiometric tdTomato-GCaMP6f transgenic reporter mouse

    Tobias X Dong et al.
    Salsa6f is a novel, ratiometric genetically encoded Ca2+ indicator that combines the power of ratiometric chemical Ca2+ indicators with the ability, when expressed transgenically, to image cellular Ca2+ signals amid complex tissue environments in vivo.
    1. Immunology and Inflammation
    2. Cell Biology

    Calcium-mediated shaping of naive CD4 T-cell phenotype and function

    Vincent Guichard et al.
    Calcium-calcineurin signaling cascade drives the acquisition of both the phenotype of the most self-reactive naive CD4 T cells and their enhanced cell-intrinsic ability to commit into induced regulatory T cells upon activation.
    1. Cell Biology
    2. Immunology and Inflammation

    Intermittent Ca2+ signals mediated by Orai1 regulate basal T cell motility

    Tobias X Dong et al.
    Orai1 channels activate intermittently in motile T cells, generating calcium transients, detected by a novel genetically encoded indicator and inducing pauses that favor antigen scanning.
    1. Immunology and Inflammation

    High mTOR activity is a hallmark of reactive natural killer cells and amplifies early signaling through activating receptors

    Antoine Marçais et al.
    Chronic engagement of Natural killer cell inhibitory receptors by MHC-I molecules maintains a high activity of the mTOR pathway allowing subsequent amplification of signaling through activating receptors upon acute stimulation.

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