Recombinant Human FGF-23 /products/reagent/recombinant-human-fgf-23-92-1330 PathHunter® U2OS FGFR4-α-Klotho Functional Assay /products/cell-line/u2os-fgfr4-α-klotho-functional-assay-93-1115c3 PathHunter® U2OS FGFR1-α-Klotho Functional Assay /products/cell-line/u2os-fgfr1-α-klotho-functional-assay-93-1117c3