ArticleMolecular biology of the cell2004
Dynamic regulation of a GPCR-tetraspanin-G protein complex on intact cells: central role of CD81 in facilitating GPR56-Galpha q/11 association.
Article in Molecular biology of the cell, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
87 citing papers in PubMed, 206 citations in OpenAlex.
- Review
- Platelet-Prostate cancer crosstalk driving disparities and therapeutic vulnerabilities.Discover oncology · 2026Review
- The therapeutic potential of orphan adhesion G-protein-coupled receptors.Nature reviews. Drug discovery · 2026Review
- Adhesion G protein-coupled receptors.Pharmacological reviews · 2026Review
- Engineering Glioma-Cell-Derived Exosomes as Trojan Horse for Precisely Targeted Chemotherapy of Glioblastoma.Biomaterials research · 2026Article
- GPR56 function as a key repressor in hepatocyte pyroptosis and the pathogenesis of liver fibrosis.Journal of translational medicine · 2025Article
- Tetraspanin-enriched microdomains play an important role in pathogenesis in the protozoan parasite Entamoeba histolytica.PLoS pathogens · 2024Article
- GPR56 facilitates hepatocellular carcinoma metastasis by promoting the TGF-β signaling pathway.Cell death & disease · 2024Article
- Mechanistic Insights into Peptide Binding and Deactivation of an Adhesion G Protein-Coupled Receptor.Molecules (Basel, Switzerland) · 2023Article
- Ablation of GPR56 Causes β-Cell Dysfunction by ATP Loss through Mistargeting of Mitochondrial VDAC1 to the Plasma Membrane.Biomolecules · 2023Article
- Role of Adhesion G Protein-Coupled Receptors in Immune Dysfunction and Disorder.International journal of molecular sciences · 2023Review
- Engineered exosomes for studies in tumor immunology.Immunological reviews · 2022Review
- Adhesion G protein-coupled receptors: structure, signaling, physiology, and pathophysiology.Physiological reviews · 2022Review
- Article
- Ligands and Beyond: Mechanosensitive Adhesion GPCRs.Pharmaceuticals (Basel, Switzerland) · 2022Review
- Role of ADGRG1/GPR56 in Tumor Progression.Cells · 2021Review
- The role of GPR56/ADGRG1 in health and disease.Biomedical journal · 2021Review
- Identification of the GlialCAM interactome: the G protein-coupled receptors GPRC5B and GPR37L1 modulate megalencephalic leukoencephalopathy proteins.Human molecular genetics · 2021Article
- Recent Advances in the Delivery Carriers and Chemical Conjugation Strategies for Nucleic Acid Drugs.Cancers · 2021Review
- Unraveling the surface glycoprotein interaction network by integrating chemical crosslinking with MS-based proteomics.Chemical science · 2021Article
27 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
By means of a variety of intracellular scaffolding proteins, a vast number of heterotrimeric G protein-coupled receptors (GPCRs) may achieve specificity in signaling through a much smaller number of heterotrimeric G proteins. Members of the tetraspanin family organize extensive complexes of cell surface proteins and thus have the potential to act as GPCR scaffolds; however, tetraspanin-GPCR complexes had not previously been described. We now show that a GPCR, GPR56/TM7XN1, and heterotrimeric G protein subunits, Galpha(q), Galpha(11), and Gbeta, associate specifically with tetraspanins and CD81, but not with other tetraspanins. CD9 Complexes of GPR56 with CD9 and CD81 remained intact when fully solubilized and were resistant to cholesterol depletion. Hence they do not depend on detergent-insoluble, raft-like membrane microdomains for stability. A central role for CD81 in promoting or stabilizing a GPR56-CD81-Galpha(q/11) complex was revealed by CD81 immunodepletion and reexpression experiments. Finally, antibody engagement of cell surface CD81 or cell activation with phorbol ester revealed two distinct mechanisms by which GPR56-CD81-Galpha(q/11) complexes can be dynamically regulated. These data reveal a potential role for tetraspanins CD9 and CD81 as GPCR scaffolding proteins.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.