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Follistatin Protein, Human, Recombinant (His)

Catalog No. TMPY-07024

Follistatin Protein, Human, Recombinant (His) is expressed in HEK293 Cells. The accession number is P19883-1.

Follistatin Protein, Human, Recombinant (His)

Follistatin Protein, Human, Recombinant (His)

Catalog No. TMPY-07024
Follistatin Protein, Human, Recombinant (His) is expressed in HEK293 Cells. The accession number is P19883-1.
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100 μg $617Backorder
1 mg $3,520Backorder
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Product Information

Biological Activity
Measured by its ability to neutralize Activin-mediated inhibition on MPC11 cell proliferation.The ED50 for this effect is typically 5-40 ng/mL.
Description
Follistatin Protein, Human, Recombinant (His) is expressed in HEK293 Cells. The accession number is P19883-1.
Species
Human
Expression System
HEK293 Cells
TagC-His
Accession NumberP19883-1
Synonyms
FS
Construction
A DNA sequence encoding the human FST (NP_037541.1) (Met1-Asp329) was expressed with a polyhistidine tag at the C-terminus.
Protein Purity
> 85% as determined by SDS-PAGE.
Molecular Weight34.4 kDa (predicted)
Endotoxin< 1.0 EU per μg protein as determined by the LAL method.
FormulationLyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.
Reconstitution
Please refer to the lot-specific COA.
Stability & Storage
It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
ShippingIn general, Lyophilized powders are shipping with blue ice.
Research Background
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 150 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.

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