Applications of fluorescence and bioluminescence resonance energy transfer to drug discovery at G protein coupled receptors.
The role of G protein coupled receptors (GPCRs) in numerous physiological processes that may be disrupted or modified in disease makes them key targets for the development of new therapeutic medicines. A wide variety of resonance energy transfer (RET) techniques such as fluorescence RET and bioluminescence RET have been developed in recent years to detect protein-protein interactions in living cells. Furthermore, these techniques are now being exploited to screen for novel compounds that activate or block GPCRs and to search for new, previously undiscovered signaling pathways activated by well-known pharmacologically classified drugs. The high resolution that can be achieved with these RET methods means that they are well suited to study both intramolecular conformational changes in response to ligand binding at the receptor level and intermolecular interactions involving protein translocation in subcellular compartments resulting from external stimuli. In this review we highlight the latest advances in these technologies to illustrate general principles.
Alvarez-Curto
Elisa
E
Molecular Pharmacology Group, Neuroscience and Molecular Pharmacology, Faculty of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK.
Pediani
John D
JD
Milligan
Graeme
G
D055808:Drug Discovery; D004735:Energy Transfer; D031541:Fluorescence Resonance Energy Transfer; D006801:Humans; D008163:Luminescent Measurements; D043562:Receptors, G-Protein-Coupled / Q000737:chemistry* / Q000378:metabolism*
D043562:Receptors, G-Protein-Coupled