Follistatin 315 1mg is the circulating isoform of follistatin, offered by Peptide Sciences for TGF-beta family and muscle-biology research.
FST-315 Versus FST-344
Follistatin 315 lacks the acidic C-terminal tail of FST-344 and is the predominant form found in circulation. It binds heparan-sulfate proteoglycans less strongly, which affects its distribution in tissue. Researchers use the two isoforms to study how structure influences activin and myostatin neutralisation.
Follistatin 315 1mg Specifications
| Property | Value |
|---|---|
| Compound | Follistatin 315 (FST-315, 315-residue alternative splice isoform of human follistatin) |
| Class | Myostatin-binding glycoprotein; cell-surface-associated follistatin isoform |
| Amino-acid count | 315 |
| Molecular weight | approximately 34670 g/mol |
| Supplied form | Lyophilised powder, sealed vial |
| Strength | 1 mg per vial |
| Purity | greater than 99 percent (HPLC verified) |
| Storage | 2 to 8 degrees Celsius lyophilised; minus 20 degrees Celsius long-term |
Research Uses for FST-315
Suitable for binding assays, myoblast culture and comparative isoform studies.
Research Considerations
Follistatin isoforms are glycoproteins, so researchers should handle reconstituted material gently and avoid vigorous shaking. Binding assays usually pair follistatin with recombinant activin A or myostatin to measure neutralisation capacity.
Quality Control, COA and Shipping
Our release testing covers purity (HPLC), identity (MS) and appearance for every production lot. Orders include the lot-matched COA and leave our US warehouse in insulated, tamper-evident packaging to keep research material stable.
Related Research Compounds
Researchers working with follistatin often compare results with these catalog compounds:
Explore the full Growth Hormone Peptides collection, browse the complete Peptide Sciences research peptide catalog, or review published literature on follistatin in PubMed.
Research use only. This product is sold strictly for in-vitro laboratory research and development by qualified professionals. It is not for human or veterinary use, not a drug, food or cosmetic, and has not been evaluated by the FDA to diagnose, treat, cure or prevent any disease. Buyers must be 21+ and comply with all applicable laws.
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