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Activation of the Orphan G Protein-Coupled Receptor GPR27 by Surrogate Ligands Promotes

Molecular pharmacology (2017-03-21)
Nadine Dupuis, Céline Laschet, Delphine Franssen, Martyna Szpakowska, Julie Gilissen, Pierre Geubelle, Arvind Soni, Anne-Simone Parent, Bernard Pirotte, Andy Chevigné, Jean-Claude Twizere, Julien Hanson
ABSTRACT

G protein-coupled receptors are the most important drug targets for human diseases. An important number of them remain devoid of confirmed ligands. GPR27 is one of these orphan receptors, characterized by a high level of conservation among vertebrates and a predominant expression in the central nervous system. In addition, it has recently been linked to insulin secretion. However, the absence of endogenous or surrogate ligands for GPR27 complicates the examination of its biologic function. Our aim was to validate GPR27 signaling pathways, and therefore we sought to screen a diversity-oriented synthesis library to identify GPR27-specific surrogate agonists. To select an optimal screening assay, we investigated GPR27 ligand-independent activity. Both in G protein-mediated pathways and in

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Sigma-Aldrich
Monoclonal ANTI-FLAG® M2 antibody produced in mouse, clone M2, purified immunoglobulin (Purified IgG1 subclass), buffered aqueous solution (10 mM sodium phosphate, 150 mM NaCl, pH 7.4, containing 0.02% sodium azide)
Sigma-Aldrich
Poly-D-lysine hydrobromide, average mol wt 30,000-70,000, lyophilized powder, γ-irradiated, BioReagent, suitable for cell culture