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Mechanistic Insights into GPCR Dimerization/Oligomerization

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Compelling evidence that models of GPCR signaling must consider oligomeric assemblies rather than isolated monomers started to appear in the literature during my postdoctoral training. Many of the published studies described (i) effects resulting from activating one GPCR in the presence of another and (ii) modulation of the activity of one receptor using ligands targeting another one. Whether these effects resulted from downstream crosstalk or from differential signaling of a receptor complex has so far been difficult to ascertain for the largest subfamily A of GPCRs. My lab has been hard at work in the area of GPCR oligomerization, contributing to their recognition, nomenclature, storing, structural models, and estimates of relative stability.  We are committed to providing a rigorous mechanistic insight into the spatio-temporal organization of GPCRs in living cells at a level of molecular detail that is unattainable using current experimental techniques alone, but is required for an ultimate understanding of the role of GPCR oligomerization in receptor function.

 

 Representative Publications

Pin, J.-P., Neubig, R., Bouvier, M., Devi, L., Filizola, M., Javitch, J.A., Lohse, M.J., Milligan, G., Palczewski, K., Parmentier, M., Spedding, M. “International Union of Basic and Clinical Pharmacology. LXVII. Recommendations for the Recognition and Nomenclature of G Protein-Coupled Receptor Heteromultimers.” Pharmacological Reviews (2007) 59:1-9.

 

Khelashvili, G., Dorff, K., Shan, J., Camacho-Artacho, M., Skrabanek, L., Vroling, B., Bouvier, M., Devi, L., George, S.R., Javitch, J.A.,Lohse, M.J., Milligan, G., Neubig, R., Palczewski, K., Parmentier, M., Pin, J.-P., Vriend, G., Campagne, F., Filizola, M.GPCR-OKB: A database for G protein-coupled receptor oligomers.” Bioinformatics (2010) 26(14):1804-1805.

 

Johnston, J.M., Wang, H., Provasi, D., Filizola, M. “Assessing the Relative Stability of Dimer Interfaces in G Protein-Coupled Receptors.” PLOS Computational Biology (2012) 8(8): e1002649.

 

Provasi, D., Boz, M.B., Johnston, J.M., Filizola, M. “Preferred Supramolecular Organization and Dimer Interfaces of Opioid Receptors from Simulated Self-Association” (2015) PLOS Computational Biology Mar 30;11(3):e1004148.

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Project Details
Date 07 Jun 2015 Categories ALL Author admin