Table 7, Activity profile of the probe ML321 and relative analogs against D2 Ca2+ assay in D2 expressing HK293 T-Rex™ cell line, D2 β-arrestin assay in D2 receptor PathHunter® β-arrestin cells, D3 β-arrestin assay in D3 PathHunter® β-arrestin cells, and D2 or D3 radio-ligand binding assays in HEK cell line expressing either D2L or D3 human dopamine receptor