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437 items found for "receptor binding"

  • Dual loss of regulator of G protein signaling 2 and 5 exacerbates ventricular myocyte arrhythmias...

    , essential to maintaining proper cardiac output and circulation, is regulated by G protein-coupled receptor

  • GRK2 selectively attenuates the neutrophil NADPH-oxidase response triggered by β-arrestin recruiting

    pro-inflammatory neutrophil response, signaling downstream of an agonist-activated G protein-coupled receptor Among the family of GPCR kinases (GRKs) that regulate receptor phosphorylation and signaling termination The medium chain fatty acid receptor GPR84 as well as formyl peptide receptor 2 (FPR2), receptors expressed

  • Opposite Effects of Src Family Kinases on YAP and ERK Activation in Pancreatic Cancer Cells...

    Previously, we identified potent positive crosstalk between insulin/IGF-1 receptors and G protein-coupled

  • Multifunctional role of GPCR signaling in epithelial tube formation

    Rho1 signaling is activated by G-protein-coupled receptor (GPCR) signaling at the cell surface. The SG receptor that transduces the Fog signal into Rho1-dependent myosin activation has not been identified

  • GPCRs are not simple on-off switches: deep dive into GPCR-ligand interactions

    GPCR activation typically occurs through the binding of agonists which stabilize receptor conformations binding sites, the inability to target large and diffuse binding sites activated by peptides or proteins Allosteric binding sites on the receptor are those topographically distinct from (do not exhibit any in their orthosteric binding sites, such as chemokine receptors. Agonist binding to GPCRs doesn't always trigger all associated events sequentially.

  • Microbial Metabolites Orchestrate a Distinct Multi-Tiered Regulatory Network in the Intestinal Epith

    knockdown and CRISPR/Cas9 knockout cell lines, as well as mouse models, we confirmed the RNA sequencing findings These findings shed light on a sophisticated signaling network directed by intestinal microbial metabolites

  • New structural perspectives in G protein-coupled receptor-mediated Src family kinase activation

    Excited to hear Dr. Sandra Berndt talk about new structural perspectives in GPCR-mediated Src family kinase activation. Register here (FREE) https://www.ecosystem.drgpcr.com/dr-gpcr-virtual-cafe #drgpcr #gpcr #virtualcafe

  • A Chemical Biology Toolbox Targeting the Intracellular Binding Site of CCR9: Fluorescent Ligands ...

    A conserved intracellular allosteric binding site (IABS) has recently been identified at several G protein-coupled receptors (GPCRs). Starting from vercirnon, an intracellular C-C chemokine receptor type 9 (CCR9) antagonist and previous We first synthesized a fluorescent ligand enabling equilibrium and kinetic binding studies via NanoBRET

  • Lysine 101 in the CRAC Motif in Transmembrane Helix 2 Confers Cholesterol-Induced Thermal...

    CRAC Motif in Transmembrane Helix 2 Confers Cholesterol-Induced Thermal Stability to the Serotonin 1A Receptor "G protein-coupled receptors (GPCRs) constitute the largest class of membrane proteins that transduce The serotonin1A receptor is a crucial neurotransmitter receptor in the GPCR family involved in a multitude In addition, we showed that membrane cholesterol stabilizes the serotonin1A receptor against thermal consensus (CRAC) motif in transmembrane helix 2 in conferring the thermal stability of the serotonin1A receptor

  • Mechanistic basis of GPCR activation explored by ensemble refinement of crystallographic structures

    October 2022 "G protein-coupled receptors (GPCRs) are important drug targets characterized by a canonical Here, ensemble refinement (ER) of crystallographic structures is applied to explore the impact of binding of agonists and antagonist/inverse agonists to selected structures of cannabinoid receptor 1 (CB1R), β2 adrenergic receptor (β2 AR) and A2A adenosine receptor (A2A AR). " Read more at the source #DrGPCR

  • Single-molecule counting applied to the study of GPCR oligomerization

    Consider G-protein-coupled receptors-an expansive class of transmembrane signaling proteins that participate While early evidence for the role of oligomerization in receptor signaling came from ensemble biochemical for these techniques to advance our understanding of the role of oligomerization in G-protein-coupled receptor

  • GPCR kinases generate an APH1A phosphorylation barcode to regulate amyloid-β generation

    August 2022 "Emerging evidence suggests that G protein-coupled receptor (GPCR) kinases (GRKs) are associated

  • GB83, an Agonist of PAR2 with a Unique Mechanism of Action Distinct from Trypsin and PAR2-AP

    October 2022 "Protease-activated receptor 2 (PAR2) is a G-protein-coupled receptor (GPCR) activated by Interestingly, unlike PAR2-AP, GB83 and trypsin induced sustained receptor endocytosis and PAR2 colocalization

  • PAR-Induced Harnessing of EZH2 to β-Catenin: Implications for Colorectal Cancer

    September 2022 "G-protein-coupled receptors (GPCRs) are involved in a wide array of physiological and Here, we find that protease-activated receptor 4 (PAR4) unexpectedly acts as a potent oncogene, inducing

  • Molecular targets of psychedelic-induced plasticity

    Considering the central role of the serotonin 5-HT2A receptor in the distinct effects of psychedelics Here we discuss some of the most recent findings in human studies and contextualize them considering

  • 📰 GPCR Weekly News, December 11 to 17, 2023

    involves semi-synthetic nanobody-ligand conjugates with enhanced transcriptional outputs at neurokinin receptor GPCR Activation and Signaling GPCR screening reveals that the metabolite receptor HCAR3 regulates epithelial conjugates exhibit tunable signaling properties and enhanced transcriptional outputs at neurokinin receptor functional GPCRs tANCHOR fast and cost-effective cell-based immunization approach with focus on the receptor-binding into GPCR Function Using AlphaFold and Experimental Structures for the Prediction of the Structure and Binding

  • Disentangling bias between G q, GRK2, and arrestin3 recruitment to the M 3 muscarinic acetylcholine

    2 (GRK2), as well as arrestin3 binding to the muscarinic acetylcholine receptor M3 by utilizing FRET-based In order to avoid interference between these interactions, we studied GRK2 binding in the presence of inhibitors of Gi and Gq proteins and analyzed arrestin3 binding to prestimulated M3 receptors to avoid the agonists for G protein- and GRK2-M3R interaction was the same, suggesting that G protein and GRK2 binding to M3R requires similar receptor conformations, whereas requirements for arrestin3 binding to M3R are

  • Fentanyl activates ovarian cancer and alleviates chemotherapy-induced toxicity via opioid...

    September 2022 Fentanyl activates ovarian cancer and alleviates chemotherapy-induced toxicity via opioid receptor-dependent

  • A cryptic mode of GPCR regulation revealed

    October 2022 "Over three decades of research have provided thorough insights into G protein-coupled receptor Agonist activation of the β2-adrenoceptor (β2AR) causes its S-nitrosylation that is required for the receptor

  • Design and validation of recombinant protein standards for quantitative Western blot analysis of...

    validation of recombinant protein standards for quantitative Western blot analysis of cannabinoid CB1 receptor density in cell membranes: an alternative to radioligand binding methods "Background: Replacement of radioligand binding assays with antibody-antigen interaction-based approaches for quantitative analysis of G protein-coupled receptor (GPCR) levels requires the use of purified protein standards containing of magnitude but slightly higher than values obtained by the radioligand saturation binding assay."

  • Overview of adhesion GPCRs self-activation

    human ADGRL3-G13, this paper reports that the stalk peptide of ADGRL3 adopts a hook conformation when binds to the binding pocket formed by TM1-3,5-7 and extracellular loop (ECL) 1,2,3. phenylalanine (F)/leucine (L) and methionine (M) which adopted a similar conformation in the ligand binding pocket and helps to stabilize the tethered ligand-receptor. G12 showed that Gq/Gs have a similar mode of receptor binding, while Gi/G12 use a different engagement

  • A Setmelanotide-like Effect at MC4R Is Achieved by MC4R Dimer Separation

    September 2022 "Melanocortin 4 receptor (MC4R) is part of the leptin-melanocortin pathway and plays an We have previously reported that the MC4R forms homodimers, affecting receptor Gs signaling properties protein–protein interaction were conducted, confirming decreased homodimerization capacities of chimeric receptors Gq/11 signaling of chimeric receptors was analyzed using luciferase-based reporter gene (NFAT) assays that inhibiting homodimerization has a setmelanotide-like effect on Gq/11 signaling, with chimeric receptors

  • Successful prednisolone or calcimimetic treatment of acquired hypocalciuric hypercalcemia caused...

    Acquired hypocalciuric hypercalcemia (AHH) is a rare disease caused by calcium-sensing receptor (CaSR

  • Comparative studies of AlphaFold, RoseTTAFold and Modeller: a case study involving the use of...

    studies of AlphaFold, RoseTTAFold and Modeller: a case study involving the use of G-protein-coupled receptors G-protein-coupled receptor (GPCR) proteins are particularly interesting since they are involved in numerous

  • 📰 GPCR Weekly News, May 6 to 12, 2024

    and Graeme Milligan for their research on the Regulation of the pro-inflammatory G protein-coupled receptor Alejandra Tomas, et al. for their study on Lipid regulation of the glucagon receptor family Drs. Discovering allatostatin type-C receptor specific agonists Discovery of the Clinical Candidate IDOR- binding detection using bioluminescence resonance energy transfer Bayesian network models identify cooperative family Technologies for the discovery of G protein-coupled receptor-targeting biologics Lipid mediators

  • Identification of A2BAR as a potential target in colorectal cancer using novel fluorescent GPCR...

    as a potential target in colorectal cancer using novel fluorescent GPCR ligands "G-protein coupled receptors We selected the adenosine receptor 2B (A2BAR), specifically expressed in cancer cell lines compared with Fluorescent probes allowed semi-quantitative receptor mapping in living cells and validated the specific As well, fluorescent ligands were effective at monitoring real-time A2BAR receptor labeling using live-imaging Finally, we validated A2BAR as a potential pharmacological tool in CRC, using selective antagonists, finding

  • Characterization of a new WHIM syndrome mutant reveals mechanistic differences in regulation of ...

    Characterization of a new WHIM syndrome mutant reveals mechanistic differences in regulation of the chemokine receptor gain-of-function mutations that lead to C-terminal truncations, frame shifts and point mutations in the chemokine receptor is at least partially due to a significant decrease in agonist-promoted phosphorylation, β-arrestin binding Interestingly, there were also significant differences in receptor degradation, with S339fs5 having a syndrome mutant, CXCR4-S339fs5, that promotes enhanced signaling, reduced phosphorylation, β-arrestin binding

  • The complicated lives of GPCRs in cardiac fibroblasts

    October 2022 "The role of different G protein-coupled receptors (GPCRs) in the cardiovascular system In the former, stimulation of Gs-coupled receptors leads to increases in contractility, whereas stimulation of Gq-coupled receptors modulates cellular survival and hypertrophic responses. associated signaling machinery are localized in these cells with an emphasis on nuclear membrane-localized receptors

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