FGF 21 Protein (OPPA00733)

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Hersteller AVIVA Systems Biology
Kategorie
Typ Proteins
Specific against other
Format Filtered (0.4 um) and lyophilized from 0.5 mg/ml in 20mM TRIS, 20mM NaCl, pH 7.5. Physical appearance: Sterile Filtered white lyophilized powder.
Menge 5ug
Host E.coli
ArtNr OPPA00733
eClass 6.1 34160400
eClass 9.0 42020190
Lieferbar
Gene symbol
FGF 21
Protein name
Fibroblast growth factor 21
Molecular weight
19.5 kDa
Product format
Lyophilized. PBS, pH 7.4 Physical Appearance: Sterile Filtered White lyophilized (freeze-dried) powder
Gene id
26291
Reconstitution and storage
It is recommended to reconstitute the lyophilized Fibroblast Growth Factor-21 Human Recombinant sterile 18M Omega -cm H2O not less than 100 ug/ml, which can then be further diluted to other aqueous solutions. Lyophilized FGF-21 Human Recombinant, although stable at room temperature for 3 weeks, should be stored desiccated below -18C. Upon reconstitution, Fibroblast Growth Factor 21 should be stored at 4C between 2-7 days and for future use below -18C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
Description of target
Fibroblast Growth Factor -21 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 182 amino acids and an N-terminal Methionin. The FGFs are a family of more than 20 small (ca.17-26 kDa) secreted peptides. The initial characterization of these proteins focused on their ability to stimulate fibroblast proliferation. This mitogenic activity was mediated through FGF receptors (FGFRs) 1, 2, or 3. A fourth closely related tyrosine kinase receptor (FGFR4) was able to bind the FGFs but did not lead to a mitogenic response. FGFs modulate cellular activity via at least 5 distinct subfamilies of high-affinity FGF receptors (FGFRs): FGFR-1, -2, -3, and -4, all with intrinsic tyrosine kinase activity and, except for FGFR-4, multiple splice isoforms, and FGFR-5, which lacks an intracellular kinase domain. There is growing evidence that FGFRs can be important for regulation of glucose and lipid homeostasis. The overexpression of a dominant negative form of FGFR-1 in cells leads to diabetes in mice, which thus implies that proper FGF signaling is required for normal cell function and glycemia maintenance. FGFR-2 appears to be a key molecule during pancreatic development. Moreover, FGFR-4 has been implicated in cholesterol metabolism and bile acid synthesis. FGF-19, has been shown to cause resistance to diet-induced obesity and insulin desensitization and to improve insulin, glucose, and lipid profiles in diabetic rodents. Since these effects, at least in part, are mediated through the observed changes in metabolic rates, FGF-19 can be considered as a regulator of energy expenditure. FGF-21 is preferentially expressed in liver, but an exact knowledge of FGF-21 bioactivity and its mode of action have been lacking to date. FGF-21 is a potent activator of glucose uptake on adipocytes, protects animals from diet-induced obesity when overexpressed in transgenic mice, and lowers blood glucose and triglyceride levels when therapeutically administered to diabetic rodents.
Purification
The FGF-21 is purified by proprietary chromatographic techniques.
Biological activity
The ED50 as determined by the dose dependent stimulation of the proliferation of BAF3 cells expressing FGF receptors is 0.06-0.4 ug/ml in the presence of beta-Klotho and Heparin.
Purity
Greater than 95.0% as determined by SDS-PAGE.

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Menge: 5ug
Lieferbar: In stock
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