Recombinant Human FGF-21 /products/reagent/recombinant-human-fgf-21-92-1231 PathHunter® U2OS FGFR1-β-Klotho Functional Assay /products/cell-line/u2os-fgfr1-β-klotho-functional-assay-93-0943c3 PathHunter® U2OS FGFR1-β-Klotho Functional Assay /products/cell-line/u2os-fgfr1-β-klotho-functional-assay-93-1118c3