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461 items found for "G-protein coupled receptor signaling"

  • Discover the Hottest GPCR News of the Week: Oct 7-13, 2024!

    protein-coupled receptor signaling kinetics and concentration-dependent responses using ONE-GO biosensors Computational Chemistry Postdoc in GPCR mechanosensing   Postdoctoral Position GPCR Activation and Signaling signaling suppresses feeding and weight gain in female rats Neuropeptide and serotonin co-transmission protein-coupled receptor-based autocrine screening for secondary metabolite production in yeast Protocol to investigate G protein-coupled receptor signaling kinetics and concentration-dependent responses using

  • TM5-TM6: structural switches that modulate the coupling of serotonin receptors to Gs or Gi

    This question led Huang et al., 2022 to investigate the molecular basis involved in G protein-receptor homology, coupled to different families of G proteins, so the comparison and structural analysis of of G proteins. interactions are crucial for the coupling of G-proteins to serotonin receptors. of the receptor to the G protein.

  • Biased GPCR signaling by the native parathyroid hormone-related protein 1 to 141 relative to its...

    September 2022 Biased GPCR signaling by the native parathyroid hormone-related protein 1 to 141 relative through its cognate G-protein coupled receptor (GPCR), the PTH type 1 receptor (PTHR), is largely derived activation, (ii) receptor signaling via Gs and Gq, and (iii) receptor internalization and recycling Furthermore, we show that the molecular basis for biased signaling differences between PTHrP1-36 and native protein hormone acting in conjunction with a GPCR."

  • Case Report of a Juvenile Patient with Autism Spectrum Disorder with a Novel Combination of Copy...

    One of the CNVs is located on chromosome 4q13.1 in the region of the gene encoding for adhesion G protein-coupled receptor L3 (ADGRL3, former name: latrophilin-3, LPHN3), the other on chromosome 3p26.3 in the region

  • C5aR2 receptor: The genomic twin of the flamboyant C5aR1

    C5a is established to interact with a set of genomically related transmembrane receptors, like C5aR1 The C5aR1 is a classical G-protein-coupled receptor (GPCR), whereas C5aR2 is a nonclassical GPCR that tailors immune cell activity potentially through β-arrestins rather than G-proteins.

  • Coordinated transcriptomics and peptidomics of central nervous system identify neuropeptides and ...

    Coordinated transcriptomics and peptidomics of central nervous system identify neuropeptides and their G protein-coupled receptors in the oriental fruit moth Grapholita molesta The oriental fruit moth Grapholita Neuropeptides and their specific receptors (primarily G protein-coupled receptors, GPCRs) regulate multiple Here, we generated a transcriptome of the central nervous system (CNS) of G. molesta. determine physiological functions and pharmacological characterization of neuropeptides and their GPCRs in G.

  • Allosteric modulation of GPCRs: From structural insights to in silico drug discovery

    October 2022 "G protein-coupled receptors (GPCRs) play critical roles in human physiology and are one allosteric sites and significantly enhanced our understanding of how allosteric ligands interact with receptors structures in complex with small-molecule allosteric ligands in terms of the location of allosteric pockets, receptor-ligand

  • The Impact of CB1 Receptor on Nuclear Receptors in Skeletal Muscle Cells

    September 2021 "Cannabinoids are abundant signaling compounds; their influence predominantly arises via engagement with the principal two G-protein-coupled cannabinoid receptors, CB1 and CB2. Earlier publications have indicated that expression of CB1 receptor mRNA and protein has been recognized on downstream signaling of the nuclear receptor, NR4A, which regulates the immediate impacts of arachidonyl signaling.

  • 📰 GPCR Weekly News, October 30 to November 4, 2023

    GPCR Activation and Signaling The G protein alpha chaperone and guanine-nucleotide exchange factor RIC on Cardiac Hypertrophy Single cell G-protein coupled receptor profiling of activated kidney fibroblasts Protein-Coupled Receptor Signaling Optical Approaches for Investigating Neuromodulation and G Protein-Coupled Receptor Signaling Protocol for identifying physiologically relevant binding proteins of G-protein-coupled receptors Reviews, GPCRs, and more RGS proteins and cardiovascular Angiotensin II Signaling: Novel opportunities

  • Lysosomal GPCR-like protein LYCHOS signals cholesterol sufficiency to mTORC1

    Through bioinformatic analysis of lysosomal proteomes, we identified lysosomal cholesterol signaling (LYCHOS, previously annotated as G protein-coupled receptor 155), a multidomain transmembrane protein that enables cholesterol-dependent activation of the master growth regulator, the protein kinase mechanistic Thus, LYCHOS functions in a lysosomal pathway for cholesterol sensing and couples cholesterol concentrations to mTORC1-dependent anabolic signaling."

  • Canonical chemokine receptors as scavenging “decoys”

    In all these situations, chemokines interact with seven-transmembrane chemokine-type G protein-coupled In humans there are approximately 45 chemokines, 19 chemotactic or G-protein coupled chemokine receptors (CKRs) that signal via Gαi and 4 official atypical chemokine receptors (ACKRs) which engage in ligand scavenging and favor β-arrestin biased signaling (Murphy, PM. et al. 2000). protein-coupled CKRs that bind to the same ligand(s) (Nibbs, R.

  • Cell Surface Calcium-Sensing Receptor Heterodimers: Mutant Gene Dosage Affects Ca 2+ Sensing but...

    but Not G Protein Interaction "The calcium-sensing receptor is a homodimeric class C G protein-coupled ) unit that activates G protein-dependent signaling via twin Cysteine-rich domains linked to transmembrane In contrast, a single WT HH bundle was insufficient for maximal signaling and there was no functional Finally, we observed that the Ca2+o -stimulated CaSR operated exclusively via signaling in-trans and not via combined in-trans and in-cis signaling.

  • The NPXXY Motif Regulates β-Arrestin Recruitment by the CB1 Cannabinoid Receptor

    August 2022 "Background: Activation of signaling effectors by G-protein coupled receptors (GPCRs) depends Although studies have focused on the G-protein signaling state, the mechanism for β-arrestin signaling

  • Serotonin Receptor 5-HT2A Regulates TrkB Receptor Function in Heteroreceptor Complexes

    September 2022 "Serotonin receptor 5-HT2A and tropomyosin receptor kinase B (TrkB) strongly contribute decreased TrkB autophosphorylation, preventing its activation with agonist 7,8-DHF, even with low 5-HT2A receptor A blockade of 5-HT2A receptor with the preferential antagonist ketanserin prevented the receptor-mediated Our data reveal the functional role of 5-HT2A–TrkB receptor heterodimerization and suggest that the regulated

  • In vivo metabolic effects after acute activation of skeletal muscle G s signaling

    Objective: The goal of this study was to determine the glucometabolic effects of acute activation of Gs signaling Methods: To address this question, we studied mice that express a Gs-coupled designer G protein-coupled Results: Acute stimulation of GsD signaling in SKM impaired glucose tolerance in lean and obese mice The acute metabolic effects of UCN2 were not mediated by SKM Gs signaling. However, acute in vivo stimulation of endogenous Gs-coupled receptors enriched in SKM has only a limited

  • β2-Adrenergic Receptor Expression and Intracellular Signaling in B Cells Are Highly Dynamic during..

    September 2022 β2-Adrenergic Receptor Expression and Intracellular Signaling in B Cells Are Highly Dynamic In this study, the expression and signaling of β2-ADR in B cells during collagen-induced arthritis (CIA Adrenergic receptors on B cells and intracellular β2-ADR downstream molecules (G protein-coupled receptor kinase 2 (GRK-2), β-Arrestin 2, p38 MAPK, extracellular signal-regulated kinase 1/2 (ERK1/2) and cAMP The change of β2-ADR expression and signaling during sustained inflammation might be an integral part

  • CD28 and chemokine receptors: Signalling amplifiers at the immunological synapse

    A finely tuned signalling compartmentalization orchestrated in dynamic platforms is an essential requirement several studies have depicted the pivotal role of the cytoskeleton and lipid microdomains in controlling signalling Here, we discuss mechanisms responsible for signalling amplification and compartmentalization in T cell activation, focusing on the role of CD28, chemokine receptors and the actin cytoskeleton. We also take into account the detrimental effect of mutations carried by distinct signalling proteins

  • Specific Functions of Melanocortin 3 Receptor (MC3R)

    October 2022 "Melanocortin 3 receptor (MC3R) is a G-protein coupled receptor (GPCR) that is defined on weight and appetite control, 2) the control of growth, puberty, and circadian rhythm, and, 3) its protein-protein

  • 📰 GPCR Weekly News, July 10 to 16, 2023

    GPCRs in Neuroscience The head mesodermal cell couples FMRFamide neuropeptide signaling with rhythmic GPCRs in Oncology and Immunology Ovarian cancer G protein-coupled receptor 1 (OGR1) deficiency exacerbates Protein Coupled Receptors. Reviews, GPCRs, and more Optical approaches for investigating neuromodulation and G Protein-Coupled Receptor signaling.

  • Structural perspectives on the mechanism of signal activation, ligand selectivity and allosteric...

    October 2022 Structural perspectives on the mechanism of signal activation, ligand selectivity and allosteric modulation in angiotensin receptors: IUPHAR Review 34 "Functional advances have guided our knowledge Thus, we need to know much more about the structures of receptor-ligand complexes at high resolution. Recently, X-ray structures of both AngII receptors (AT1 and AT2 receptors) bound to peptide and non-peptide , as the basis of ligand selectivity, efficacy, and regulation of the molecular functions of the receptors

  • GPCRs Are Optimal Regulators of Complex Biological Systems and Orchestrate the Interface between ...

    The molecular diversity of GPCR signaling systems is likely to be closely associated with disease-associated This communication involves the ligand-mediated control of cell surface receptors that then direct their has been placed on the ability of these therapeutics to modulate diseases by acting at cell surface receptors intracellular domain dictate and condition long-term GPCR activities associated with the regulation of protein understanding of this function of GPCRs is likely to significantly augment our ability to further employ these proteins

  • 📰 GPCR Weekly News, October 9 to 15, 2023

    Mechanical Activation: GAIN Domain Unfolding and Dissociation in Adhesion GPCRs GPCR Activation and Signaling Diuretic hormone 31 activates two G protein-coupled receptors with differential second messengers for diuresis in Drosophila suzukii Beyond the G protein α subunit: investigating the functional impact of protein-coupled receptor signaling GPCRs in Oncology and Immunology Observational Study of Repeat Immunoadsorption protein-coupled receptor GrlG and the loss of fruiting body formation in the social amoeba Dictyostelium

  • Regulation of rod photoreceptor function by farnesylated G-protein γ-subunits

    September 2022 "Heterotrimeric G-protein transducin, Gt, is a key signal transducer and amplifier in The only other farnesylated G-protein γ-subunit, Gγ11 ( Gng11 ), is expressed in multiple tissues but

  • Ligands can differentially and temporally modulate GPCR interaction with 14-3-3 isoforms

    September 2022 "GPCR signaling and function depend on their associated proteins and subcellular locations Besides G-proteins and β-arrestins, 14-3-3 proteins participate in GPCR trafficking and signaling, and they connect a large number of diverse proteins to form signaling networks. We found that some agonist-induced GPCR/14-3-3 signal intensities can rapidly decrease. could also be paralleled with GPCR/β-arrestin-2 signals, indicating diminished levels of GPCR/signal

  • Dopamine D 1 receptor-mediated β-arrestin signaling: Insight from pharmacology, biology, behavior...

    August 2022 Dopamine D 1 receptor-mediated β-arrestin signaling: Insight from pharmacology, biology, behavior, and neurophysiology "The awareness of the potential importance of functional selectivity/biased signaling A major pan-receptor focus has been to identify GPCR-selective ligands that have bias in G protein-dependent vs. β-arrestin related signaling. important pharmacological, molecular, and cellular studies relevant to D1-mediated β-arrestin-related signaling

  • 📰 GPCR Weekly News, July 1 to 7, 2024

    CXV: The Class F of G Protein-Coupled Receptors Yusman Manchanda , Dr. protein-coupled receptors relevant to schizophrenia Dr. signaling pathways underpin fitness trade-offs in whitefly G protein-coupled receptor kinases in hypertension variations encoding missense mutations in G protein-coupled receptors may contribute to autism GPCRs to G protein-coupled receptors Unravelling G protein-coupled receptor signalling networks using global

  • Dimerization of β2-adrenergic receptor is responsible for the constitutive activity subjected to...

    October 2022 Dimerization of β2-adrenergic receptor is responsible for the constitutive activity subjected to inverse agonism "Dimerization of beta 2-adrenergic receptor (β2-AR) has been observed across various

  • Structural landscape of the Chemokine Receptor system

    Chemokine receptors (CKRs) belong to a subfamily of G-protein-coupled receptors (GPCRs) and play a crucial CKRs can be classified into typical CKRs, atypical CKRs (ACKRs) which lack G-protein signaling, and viral signaling, which has been structurally related to a conformational change of Y2917.43 tilted toward TM2 signaling or not, although the precise molecular signature responsible for G-protein activation by CCR1 , meaning they can signal independently of agonist (Casarosa, Bakker et al. 2001, Luker, Steele et al

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