The PathHunter eXpress c-Ret-GFRα1 Functional Assay provides an easy-to-use cell based assay to study drug candidates (small molecules or biologics) targeting RTKs. This kit assesses RTK activation via detection of activated c-Ret and GFRα1 dimerization-induced SH2 domain protein recruitment. This product uses EFC technology. The included cell line overexpresses ProLink-tagged c-Ret and an EA-tagged SH2 domain protein. It also overexpresses an untagged coreceptor, GFRα1 Upon ligand-induced receptor activation, SH2-EA recruitment leads to production of EFC signal. eXpress kits are a convenient, ready-to-use format which contains all materials needed to run the assay, including single-use vials of cryopreserved cells, cell plating media, detection reagent, and assay plates. Please note that this product expresses the cynomolgus version of the protein. For detailed product information, User Manual and Datasheet, visit www.discoverx.com/express.