Human Follistatin Recombinant Protein Lyophilized from Innovative Research has been recombinantly produced in E. coli. This is a Lyophilized protein buffered in with a purity of Greater than 95% by SDS-PAGE gel and HPLC analyses.
Endotoxin level is less than 0.1 ng per and#956;g (1EU/and#956;g)..
More Details:
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Species: Human
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Target: FST
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Purity: Greater than 95% by SDS-PAGE gel and HPLC analyses.
Endotoxin level is less than 0.1 ng per and#956;g (1EU/and#956;g).
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Source: E. coli
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Storage Conditions: The lyophilized Follistatin recombinant protein is stable for at least 2 years from date of receipt at -20°C. Reconstituted Follistatin is stable for at least 3 months when stored in working aliquots with a carrier protein at -20°C. As with any protein, exposing Follistatin recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.
Additional Information:
Follistatin is a secreted protein that binds to ligands of the TGF-and#946; family and regulates their activity by inhibiting their access to signaling receptors. It was originally discovered as activin anTagonists whose activity suppresses expression and secretion of the pituitary hormone FSH (follicle stimulating hormone). In addition to being a natural anTagonist, follistatin can inhibit the activity of other TGF-and#946; ligands including BMP-2,-4,-6,-7, Myostatin, GDF-11, and TGF-and#946;1. Follistatin is expressed in the pituitary, ovaries, decidual cells of the endometrium, and in some other tissues. Recombinant human Follistatin is a 31.5 kDa protein containing 288 amino acids. Its primary structure contains three cysteine-rich domains (called FS domains), each followed by a protease-inhibitory kazal domain.
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