The GeneBLAzer® PAC1-CRE-bla CHO-K1 cells contain the human Adenylate Cyclase Activating Polypeptide 1 Receptor 1 (ADCYAP1R⁄PAC1) stably integrated into the CellSensor® CRE-bla CHO-K1 cell line. CellSensor® CRE-bla CHO-K1 cells (Cat #K1129) contain a beta-lactamase (bla) reporter gene under control of the cAMP response element (CRE). The PAC1-CRE-bla CHO-K1 cells are functionally validated for Z'-factor and EC50 concentrations of established ligands. In addition, PAC1-CRE-bla CHO-K1 cells have been tested for assay performance under variable conditions. These data are found in the Validation & Assay Performance Summary. Division Arrested cells are irreversibly division arrested using a low-dose treatment of Mitomycin C, and have no apparent toxicity or change in cellular signal transduction.