This is a confirmatory assay (PUBCHEM_BIOASSAY) that identifies small molecule antagonists of kappa opioid receptor through beta-arrestin assay. It has a direct single protein target assigned and its properties include assay organism Homo sapiens and functional assay type. Related assays deposited are AID1777, AID1785, AID1786, AID1966, AID2136, AID2285, AID2495, AID434981, AID463105, AID488826, AID488935. Does the molecule work for this assay?