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Page 2 of 1,188
    1. Cell Biology

    G protein-regulated endocytic trafficking of adenylyl cyclase type 9

    André M Lazar, Roshanak Irannejad ... Mark Von Zastrow
    An adenylyl cyclase isoform is shown to dynamically traffic to endosomes after activation by G protein in mammalian cells, contributing to cellular cAMP signaling by internalized GPCRs.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Daple is a novel non-receptor GEF required for trimeric G protein activation in Wnt signaling

    Nicolas Aznar, Krishna K Midde ... Pradipta Ghosh
    Daple is a guanine nucleotide-exchange factor (GEF) for trimeric G proteins that enables Wnt/Frizzled receptors to transactivate G proteins during non-canonical Wnt signaling.
    1. Biochemistry and Chemical Biology

    Effector membrane translocation biosensors reveal G protein and βarrestin coupling profiles of 100 therapeutically relevant GPCRs

    Charlotte Avet, Arturo Mancini ... Michel Bouvier
    Development, validation, and use of an effector membrane translocation biosensor platform reveals G protein coupling selectivity signatures for 100 GPCRs that range from remarkable selectivity to full promiscuity toward the different G protein subtypes.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Quantitative analysis of mammalian GIRK2 channel regulation by G proteins, the signaling lipid PIP2 and Na+ in a reconstituted system

    Weiwei Wang, Matthew R Whorton, Roderick MacKinnon
    The G protein subunits Gβγ and the signaling lipid PIP2 are simultaneously needed to activate the potassium ion channel GIRK2 to control the voltage across a lipid bilayer, while sodium ions modulate these molecules' effects.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    C-terminal threonines and serines play distinct roles in the desensitization of rhodopsin, a G protein-coupled receptor

    Anthony W Azevedo, Thuy Doan ... Fred Rieke
    Serine and threonine phosphorylation sites work in concert to provide rapid and reproducible desensitization of the G-protein coupled receptor rhodopsin.
    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. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Ric-8A, a G protein chaperone with nucleotide exchange activity induces long-range secondary structure changes in Gα

    Ravi Kant, Baisen Zeng ... Stephen R Sprang
    Hydrogen-Deuterium exchange experiments show that Ric-8A induces similar dynamic changes in the structure of Gα as G protein-coupled receptors, yet protects a larger surface of the nucleotide-binding Ras domain.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM analysis of PIP2 regulation in mammalian GIRK channels

    Yiming Niu, Xiao Tao ... Roderick MacKinnon
    The structural role of PIP2 in opening the G-protein-gated K+ channel is revealed.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cooperative regulation by G proteins and Na+ of neuronal GIRK2 K+ channels

    Weiwei Wang, Kouki K Touhara ... Roderick MacKinnon
    Determining how GIRK2 activity depends on the concentration of Gβγ subunits in lipid membranes at different Na+ concentrations has allowed the Gβγ concentration generated during GABAB activation in neurons to be estimated.
    1. Cell Biology

    β-Arrestin-dependent and -independent endosomal G protein activation by the vasopressin type 2 receptor

    Carole Daly, Akim Abdul Guseinov ... Bianca Plouffe
    The vasopressin type 2 receptor promotes dual Gαs and Gαq/11 signaling at early endosomes in β-arrestin-dependent and -independent manners.