Recombinant Human FST protein, His-tagged FST-6937H

Recombinant Human FST protein, His-tagged

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Recombinant Human FST protein, His-tagged

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Cat.No. : FST-6937H
Product Overview : Recombinant Human FST Protein (Met1-Asn317) is produced by HEK293 Cells expression system. This protein is fused with a His tag at the C-terminal.
Description : Follistatin is a single-chain gonadal protein that specifically inhibits follicle-stimulating hormone release. The single FST gene encodes two isoforms, FST317 and FST344 containing 317 and 344 amino acids respectively, resulting from alternative splicing of the precursor mRNA. In a study in which 37 candidate genes were tested for linkage and association with polycystic ovary syndrome (PCOS) or hyperandrogenemia in 15 families, evidence was found for linkage between PCOS and follistatin. follistatin are expressed and subserve local regulatory roles in numerous extragonadal tissues, including brain, adrenal, bone marrow, and placenta but perhaps most notably in anterior pituitary-the classical target tissue for inhibin, the activin-follistatin system may play a key role in early embryogenesis. Follistatin binds directly to activin and functions as an activin antagonist. Specific inhibitor of the biosynthesis and secretion of pituitary follicle stimulating hormone follistatin is a binding protein to activin. Since activin binds to follistatin, it is imperative to determine the nature of the activin/follistatin binding complex.
Source : HEK293
Species : Human
Tag : His
Predicted N Terminal : Gly 30
Form : Lyophilized from sterile PBS, pH 7.4, 5 % trehalose, 5 % mannitol and 0.01% Tween80.
Bio-activity : Measured by its ability to neutralize Activin-mediated inhibition on MPC11 cell proliferation. The ED50 for this effect is typically 0.2-1 μg/mL in the presence of 10 ng/ml Recombinant Human Activin A.
Molecular Mass : The secreted recombinant human FST (FS288) consists of 299 amino acids and has a predicted molecular mass of 33 kDa. As a result of glycosylation, rhFST (FS288) migrates as an approximately 45 kDa band in SDS-PAGE under reducing conditions.
Protein length : Met1-Asn317
Endotoxin : < 1.0 EU per μg of the protein as determined by the LAL method
Purity : > 90 % as determined by SDS-PAGE
Stability : Samples are stable for up to twelve months from date of receipt at -70 centigrade.
Storage : Store it under sterile conditions at -20 centigrade to -80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution : It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 mg/ml. Centrifuge the vial at 4 centigrade before opening to recover the entire contents.
Figure :

Gene Name : FST follistatin [ Homo sapiens ]
Official Symbol : FST
Synonyms : FST; follistatin; FS; activin-binding protein; follistatin isoform FST317;
Gene ID : 10468
mRNA Refseq : NM_006350
Protein Refseq : NP_006341
MIM : 136470
UniProt ID : P19883
For Research Use Only. Not intended for any clinical use. No products from Creative BioMart may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative BioMart.

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