95 results found
    1. Biochemistry and Chemical Biology

    Structural and functional characterization of G protein–coupled receptors with deep mutational scanning

    Eric M Jones, Nathan B Lubock ... Sriram Kosuri
    Linking deep mutational scanning with engineered transcriptional reporters in human cell lines establishes a generalizable method for exploring pharmacogenomics, structure, and function across broad classes of drug receptors.
    1. Neuroscience

    Norepinephrine is required to promote wakefulness and for hypocretin-induced arousal in zebrafish

    Chanpreet Singh, Grigorios Oikonomou, David A Prober
    Experiments in genetically modified zebrafish that are unable to produce norepinephrine show that this neurotransmitter promotes wakefulness by mediating the effects of the neuropeptide hypocretin.
    1. Cell Biology

    β-blockers augment L-type Ca2+ channel activity by targeting spatially restricted β2AR signaling in neurons

    Ao Shen, Dana Chen ... Yang K Xiang
    FRET biosensor-based measurement of cAMP signaling and single-channel recording reveal that β-blockers trigger local activation of adrenergic receptors and calcium channels in primary neurons.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Structural and mechanistic basis of the EMC-dependent biogenesis of distinct transmembrane clients

    Lakshmi E Miller-Vedam, Bastian Bräuning ... Jonathan S Weissman
    Structure-function characterization of the EMC's cytoplasmic, transmembrane, and lumenal domains reveal features critical for terminal helix insertion and a specialized role for the lumenal domain in polytopic membrane protein biogenesis.
    1. Cell Biology

    Control of brown adipose tissue adaptation to nutrient stress by the activin receptor ALK7

    Patricia Marmol, Favio Krapacher, Carlos F Ibáñez
    The activin receptor ALK7 regulates the adaptation of brown adipose tissue to nutrient availability by preventing over-activation of signaling pathways induced by fasting, allowing appropriate response to cold exposure.
    1. Cell Biology

    Visualization of endogenous G proteins on endosomes and other organelles

    Wonjo Jang, Kanishka Senarath ... Nevin A Lambert
    Heterotrimeric G proteins are less abundant on endosomes and organelles than on the plasma membrane.
    1. Cell Biology
    2. Developmental Biology

    Distinct cellular and molecular mechanisms for β3 adrenergic receptor-induced beige adipocyte formation

    Yuwei Jiang, Daniel C Berry, Jonathan M Graff
    The activation of beige adipocyte thermogenesis by cold temperatures and β3-adrenergic receptor agonists induce beige adipocyte formation, function and perdurance.
    1. Cancer Biology

    R-propranolol is a small molecule inhibitor of the SOX18 transcription factor in a rare vascular syndrome and hemangioma

    Jeroen Overman, Frank Fontaine ... Mathias Francois
    Identification of the R(+)-propranolol enantiomer as an inhibitor of the SOX18 transcription factor activity breaks open potential of drug repurposing in vascular diseases.
    1. Neuroscience

    Imaging microglia surveillance during sleep-wake cycles in freely behaving mice

    Xiaochun Gu, Zhong Zhao ... Heping Cheng
    Using long-term in vivo imaging with miniature two-photon microscopy, microglia surveillance is sleep state-dependent and stress-induced in freely behaving mice, regulated by the locus coeruleus-norepinephrine system and β2-adrenergic receptors signaling.
    1. Neuroscience

    Sleep is bi-directionally modified by amyloid beta oligomers

    Güliz Gürel Özcan, Sumi Lim ... Jason Rihel
    Amyloid beta, the major component of plaques in Alzheimer's disease, acutely and reversibly signals to modulate sleep as a function of oligomeric length, independently of neuronal loss.

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