|Description:||This human RAR-related orphan receptor gamma (RORγ) mRNA is expressed from the RORC gene in two forms via alternate usage of tissue-specific promoters. Variant 1 mRNA is expressed in numerous tissues, and encodes receptor isoform 1, referred to as RORγ. Variant 2 mRNA comprises an alternate exon 1 that replaces the exon 1 and 2 sequences found in the Variant 1 transcript. Consequently, variant 2 mRNA presents a unique 5UTR and modified N-terminal ORF sequences, resulting in the expression of a shorter isoform 2 receptor. The isoform 2 receptor is expressed predominantly in specialized immune cells developing within the thymus; as such it is referred to as RORγt. This nuclear receptor assay system utilizes proprietary human cells engineered to provide high-level expression of a hybrid form of the human RAR-related orphan receptor gamma. The N-terminal DNA binding domains (DBD) of the native RORγ and RORγt receptors have been substituted with that of the yeast GAL4-DBD. Hence, the GAL4- RORγ hybrid receptor expressed in these reporter cells will not discern any functional differences that may exist between the native isoform 1 and isoform 2 receptors. As is true in vivo, uncharacterized molecular activators present in these reporter cells maintain RORγ in a constant state of high-level activity. The principal application of this reporter assay system is in the screening of test samples to quantify inverse-agonist activities that they may exert against human RORγ. Reporter cells are prepared using the proprietary CryoMite process. This cryopreservation method yields high cell viability post-thaw, and provides the convenience of immediately dispensing healthy, division-competent reporter cells into assay plates. There is no need for intermediate spin-and-wash steps, viability determinations, or cell titer adjustments.|
|Kit Components:||▪ RORγ Reporter Cells: 3 x 0.6 mL; -80°C▪ Cell Recovery Medium (CRM): 1 x 10.5 mL; -20°C ▪ Compound Screening Medium (CSM): 1 x 35 mL; -20°C▪ Ursolic Acid, 10 mM (in DMSO) (reference agonist for RORγ): 1 x 30 µL; -20°C ▪ Detection Substrate: 3 x 2.0 mL; -80°C▪ Detection Buffer: 3 x 2.0 mL; -80°C▪ 96-well plate frame: 1; ambient ▪ Snap-in, 8-well strips: 12; -20°C|
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