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Antagonists to the human metabotropic glutamate receptor subtype 5a(mGluR(5a)) have been implicated as potential therapeutics for the treatment of a variety of nervous system disorders, including pain, anxiety, and Parkinson's disease. To discover novel antagonists to the mGluR(5a), a functional assay measuring agonist-induced intracellular calcium release(More)
The measurement of intracellular calcium response transients in living mammalian cells is a popular functional assay for identification of agonists and antagonists to receptors or channels of pharmacological interest. In recent years, advances in fluorescence-based detection techniques and automation technologies have facilitated the adaptation of this(More)
The diversity of physiological functions mediated by the GPCR superfamily provides a rich source of molecular targets for drug discovery programs. Consequently, a variety of assays have been designed to identify lead molecules based on ligand binding or receptor function. In one of these, the binding of [(35)S]GTPgammaS, a nonhydrolyzable analogue of GTP,(More)