Related Experiment Video
Updated: Jun 13, 2026
10:13
Measuring G-protein-coupled Receptor Signaling via Radio-labeled GTP Binding
Published on: June 9, 2017
G protein coupled R7G receptors
1Laboratoire d'Immuno-Pharmacologie Moléculaire, CNRS, Université Paris 7 Denis Diderot.
Cancer Surveys
|January 1, 1996
Summary
This study reviews G protein-coupled receptors (GPCRs), detailing their structure, function, regulation, and links to disease. It explores GPCR evolution, ligand binding, and interactions with other signaling pathways, highlighting mutation impacts.
Area of Science:
- Biochemistry and Molecular Biology
- Pharmacology
- Genetics
Background:
- G protein-coupled receptors (GPCRs) represent a vast family of cell surface receptors involved in numerous physiological processes.
- Understanding GPCRs is crucial for developing targeted therapeutics due to their roles in various diseases.
Purpose of the Study:
- To provide a comprehensive overview of the properties of G protein-coupled receptors.
- To discuss the evolutionary aspects, ligand selectivity, and signaling cross-talk of GPCRs.
- To evaluate the impact of mutations on GPCR activity and their association with human diseases.
Main Methods:
- Literature review and synthesis of existing research on GPCRs.
- Comparative analysis of GPCR subfamilies, subtypes, and binding sites.
- Discussion of GPCR regulation, signal transduction pathways, and genetic variations.
Main Results:
- GPCRs exhibit diverse structure-function relationships, with distinct subfamilies and subtypes evolving for specific ligand selectivity.
- Regulation of GPCR expression and activity is complex, involving intricate signaling networks and cross-talk with pathways like receptor tyrosine kinases.
- Mutations in GPCR genes can significantly alter receptor activity, leading to or modulating various human pathologies.
Conclusions:
- GPCRs are critical regulators of cellular function with significant implications for human health and disease.
- The evolutionary diversity and complex signaling of GPCRs offer opportunities for selective therapeutic interventions.
- Further research into GPCR mutations and their functional consequences is essential for advancing personalized medicine.
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01:21G-protein Coupled Receptors
G-protein coupled receptors are ligand binding receptors that indirectly affect changes in the cell. The actual receptor is a single polypeptide that transverses the cell membrane seven times creating intracellular and extracellular loops. The extracellular loops create a ligand specific pocket which binds to neurotransmitters or hormones. The intracellular loops holds onto the G-protein.
01:21G-protein Coupled Receptors
G-protein coupled receptors are ligand binding receptors that indirectly affect changes in the cell. The actual receptor is a single polypeptide that transverses the cell membrane seven times creating intracellular and extracellular loops. The extracellular loops create a ligand specific pocket which binds to neurotransmitters or hormones. The intracellular loops holds onto the G-protein.
01:15G Protein-coupled Receptors
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GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
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01:15G Protein-coupled Receptors
G Protein-Coupled Receptors or GPCRs are membrane-bound receptors that transiently associate with heterotrimeric G proteins and induce an appropriate response to sensory stimuli such as light, odors, hormones, cytokines, or neurotransmitters.
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
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GPCRs are also called heptahelical, 7TM, or...
GPCRs are also called heptahelical, 7TM, or...