687 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Ligand modulation of sidechain dynamics in a wild-type human GPCR

    Lindsay D Clark et al.
    Generation of a highly deuterated 13C-methyl labeled wild-type GPCR sample is used to facilitate characterization of the molecular environments and fast ps-ns dynamics of sidechains when the receptor is bound to ligands of different efficacy.
    1. Cell Biology
    2. Neuroscience

    The orphan receptor GPR88 blunts the signaling of opioid receptors and multiple striatal GPCRs

    Thibaut Laboute et al.
    GPR88 inhibits G-protein signaling of nearby GPCRs, and dampens b-arrestin recruitment by all GPCRs tested, likely by sequestration in intracellular compartments.
    1. Neuroscience

    Cortical astrocytes independently regulate sleep depth and duration via separate GPCR pathways

    Trisha V Vaidyanathan et al.
    Cortical astrocytes play key roles in NREM sleep by regulating sleep depth and duration through separate GPCR pathways, and differentially control neuronal slow-wave activity in local and remote cortical circuits.
    1. Cell Biology
    2. Developmental Biology

    The cAMP effector PKA mediates Moody GPCR signaling in Drosophila blood–brain barrier formation and maturation

    Xiaoling Li et al.
    A polarized Moody/protein kinase A pathway plays an unrecognized central role in controlling the enormous cell growth and blood–brain barrier integrity in a highly coordinated spatiotemporal manner in brain homeostasis.
    1. Neuroscience

    Antinociceptive modulation by the adhesion GPCR CIRL promotes mechanosensory signal discrimination

    Sven Dannhäuser et al.
    An interdisciplinary approach uncovers a new antinociceptive molecular mechanism and shows that the adhesion GPCR CIRL adjusts the sensation of gentle touch and noxious mechanical insult in opposite directions.
    1. Computational and Systems Biology
    2. Structural Biology and Molecular Biophysics

    Common activation mechanism of class A GPCRs

    Qingtong Zhou et al.
    Contrary to previous findings, class A GPCRs share a common activation pathway that directly links ligand binding to G-protein activation, as revealed by novel quantitative analysis.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Complementary biosensors reveal different G-protein signaling modes triggered by GPCRs and non-receptor activators

    Mikel Garcia-Marcos
    Heterotrimeric G-proteins can be switched on not only by G-protein-coupled receptors but also by cytoplasmic proteins, resulting in different signaling mechanisms in cells depending on the specific type of activator.
    1. Cell Biology

    G protein-regulated endocytic trafficking of adenylyl cyclase type 9

    André M Lazar et al.
    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. Cell Biology
    2. Neuroscience

    Latrophilin GPCR signaling mediates synapse formation

    Richard Sando, Thomas C Südhof
    Spatial restriction of GPCR signaling at nascent synapses by adhesion complexes drives excitatory synapse formation and specificity in the hippocampus.
    1. Developmental Biology
    2. Neuroscience

    The adhesion-GPCR BAI1 shapes dendritic arbors via Bcr-mediated RhoA activation causing late growth arrest

    Joseph G Duman et al.
    The adhesion-GPCR BAI1 shapes dendritic arbors in the hippocampus by associating with Bcr late in development and stimulating its RhoA-GEF activity, resulting in dendritic growth arrest.

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