Name : FGF-21, Human
Product Concentration :
Background :
Fibroblast Growth Factor-21 (FGF-21) is a metabolic cytokine belonging to the heparin-binding FGF family. Along with FGF-19/15 and FGF-23, FGF-21 is categorized as a member of the atypical FGF subfamily, as it must be complexed to the Klotho co-receptor in order to bind to the FGF receptors and activate the downstream signaling pathway. In vivo FGF-21 is expressed in liver, pancreas, adipose tissue, and skeletal muscle, and it plays a central role in the energy metabolism. The expression of FGF-21 is stimulated by free fatty acids and insulin resistant states and is correlated with whole-body insulin resistance. FGF-21 activates glucose uptake in adipocytes and increases insulin sensitivity, implicating it as a novel target with potential anti-diabetic properties.
Biological Activity :
ED50 2.0 × 103 units/mg.
expression system :
E. coli
Tag :
Expressed with an N-terminal Gly FGF-21 (His29-Ser209)Accession # Q9NSA1
Protein Accession No. :
Q9NSA1
Synonyms :
FGF21; fibroblast growth factor-21; FGFL
Molecular Weight :
~19.5 kDa, on SDS-PAGE under reducing conditions.
Purity :
> 95% as analyzed by SDS-PAGE> 95% as analyzed by HPLC
Product Concentration :
Lyophilized after extensive dialysis against PBS.
Storage and Stability :
Upon receiving, this product remains stable for up to 6 months at lower than -70°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles.
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