ED50 < 2.5 ng/mL, measured by a cell proliferation assay using 3T3 cells in the presence 1 xg/mL heparin, corresponding to a specific activity of > 4x 10^5 units/mg. AA 41-208, expressed with an N-terminal Met.
Lyophilized recombinant human Fibroblast Growth Factor-6 (rhFGF-6) remains stable up to 6 months at -80 °C from date of receipt. Upon reconstitution, rhFGF-6 remains stable up to 2 weeks at 4 °C or up to 3 months at -20 °C.
Fibroblast Growth Factor-6 (FGF-6) is a cytokine belonging to the heparin-binding FGF family, and is structurally related to other members of FGF family, particularly FGF-4. In vivo, FGF-6 exhibits an expression profile predominantly restricted tothe myogenic lineage, and it preferentially binds to two of the FGF receptors: FGFR1 and FGFR4. FGF-6 functions in muscle regeneration, myoblast proliferation and migration, and muscle differentiation in a dose-dependent manner. In vivo high concentration of recombinant FGF-6 up-regulates and down-regulates FGFR1 and FGFR4, respectively, as FGFR1 promotes the proliferation while FGFR4 promotes the differentiation in the muscle. Besides its dual function in muscle regeneration, FGF-6 may act as a regulator of bone metabolism as well.Recombinant human Fibroblast Growth Factor-6 (rhFGF-6) produced in E. coli is a single non-glycosylated polypeptide chain containing 169 amino acids. A fully biologically active molecule, rhFGF-6 has a molecular mass of 18.8 kDa analyzed by reducing SDS-PAGE. Synonyms: Fibroblast Growth Factor-6, HBGF-6, HST-2