Follistatin Human Recombinant, FST Human, 20ug

CAT No.BT-CYT-232

Follistatin Human Recombinant, FST Human, 20ug

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Amino acid sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Gly-Asn-Cys-Trp-Leu.

Biological Activity
The activity is determined by the ability to neutralize Activin A inhibitory effect of mouse MPC-11 cells. The expected ED50 is 100-400ng/ml corresponding to a Specific Activity of 2,500-10,000IU/mg in the presence of 7.5ng/ml Activin A.

Description
Follistatin Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 288 amino acids and having a total molecular mass of 31.5kDa.
The FST is purified by proprietary chromatographic techniques.

Lyophilized from a concentrated (1mg/ml) solution containing no additives.

Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.

Purity
Greater than 95.0% as determined by(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.

Solubility
It is recommended to reconstitute the lyophilized Follistatin in sterile 18M¦¸-cm H2O not less than 100ug/ml, which can then be further diluted to other aqueous solutions.

Source
Escherichia Coli.

Stability
Lyophilized Follistatin although stable at room temperature for 3 weeks, should be stored desiccated below -18¡ãC. Upon reconstitution FST should be stored at 4¡ãC between 2-7 days and for future use below -18¡ãC.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please prevent freeze-thaw cycles.

Synonyms
FST, FS, Activin-binding protein.

Usage
TSZGENE's products are furnished for LABORATORY RESEARCH USE ONLY.They may not be used as drugs,agricultural or pesticidal products, food additives or household chemicals.