GeneBLAzer® GnRHR-NFAT-bla CHO-K1 cells contain the human gonadotropin-releasing hormone receptor (GnRHR), (Accession # NM_001012763) stably integrated into the CellSensor® NFAT-bla HEK 293T cell line. CellSensor® NFAT-bla HEK 293T (Cat No. K1538) cells contain a beta-lactamase reporter gene under control of the NFAT Response Element. GeneBLAzer® GnRHR-NFAT-bla CHO-K1 cells are functionally validated for Z’-factor and EC50 concentrations of Luteinizing Hormone-Releasing Hormone (LH-RH). In addition, GeneBLAzer® GnRHR-NFAT-bla CHO-K1 cells have been tested for assay performance under variable conditions.