G protein-coupled receptor microarrays for drug discovery.

The dominance of G protein-coupled receptors (GPCRs) as a drug target class, coupled with the increased pace of target identification and expansion of compound libraries, presents a compelling need to develop technologies to screen multiple GPCRs simultaneously. To address this need, GPCR microarrays that require the co-immobilization of lipid molecules and the probe receptors of interest have been fabricated, using conventional robotic printing technologies. Assays to screen compounds for their pharmacological properties (binding affinity, relative potency and selectivity) using GPCR microarrays are discussed.