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    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 et al.
    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. 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 et al.
    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. Neuroscience

    G protein βγ subunits inhibit TRPM3 ion channels in sensory neurons

    Talisia Quallo et al.
    TRPM3 inhibition is identified as a novel mechanism for G-protein βγ subunit signalling.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM analysis of PIP2 regulation in mammalian GIRK channels

    Yiming Niu et al.
    The structural role of PIP2 in opening the G-protein-gated K+ channel is revealed.
    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 et al.
    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. Neuroscience

    Inhibition of Transient Receptor Potential Melastatin 3 ion channels by G-protein βγ subunits

    Doreen Badheka et al.
    Electrophysiological experiments, Ca2+ imaging, and behavioral studies in mice identify the TRPM3 ion channel as a novel target of G-protein βγ subunits.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    The GIRK1 subunit potentiates G protein activation of cardiac GIRK1/4 hetero-tetramers

    Kouki K Touhara et al.
    The GIRK1 subunit contains a defective Na+-binding site but behaves as if it is permanently bound to a sodium ion, and therefore increases the affinity of Gβγ to GIRK1/4 hetero-tetrameric channels in lipid membranes.
    1. Cell Biology

    Allosteric control of an asymmetric transduction in a G protein-coupled receptor heterodimer

    Junke Liu et al.
    In mGlu heterodimers, an oriented asymmetrical activation revealed complex allosteric interaction between subunits.
    1. Cancer Biology

    Activation of G protein-coupled estrogen receptor signaling inhibits melanoma and improves response to immune checkpoint blockade

    Christopher A Natale et al.
    Driving melanoma differentiation through G protein-coupled estrogen receptor signaling decreases proliferative capacity, decreases expression of the oncodriver and stem cell marker c-Myc, and increases the effectiveness of immunotherapy.
    1. Biochemistry and Chemical Biology

    Concerted conformational dynamics and water movements in the ghrelin G protein-coupled receptor

    Maxime Louet et al.
    A combination of state-of-the-art biochemical, biophysical, and computational methods revealed that water molecules play a central role in signal propagation through G protein-coupled receptors.