Recombinant 344-residue follistatin isoform investigated for myostatin/activin binding and muscle research.
Purity
99%+
CAS Number
80449-31-6
Status
In Stock
Dispatch
Same-Day (before 2pm)
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£199.99
Research verification required. All orders are reviewed before dispatch. You will receive an email confirmation and a WhatsApp or phone call within 60 minutes to verify your research purpose.
Follistatin 344 (FST-344) is the longer 344-residue isoform of human follistatin, a secreted glycoprotein that binds and neutralises members of the TGF-β superfamily, most notably myostatin (GDF-8) and activin A. Researchers study FST-344 in skeletal-muscle models for its role in muscle-mass regulation, fibrosis pathways and reproductive endocrinology. Supplied lyophilised for in vitro laboratory research only.
| Compound Name | Follistatin 344 |
| Category | Growth & Muscle |
| CAS Number | 80449-31-6 |
| Molecular Weight | ~37.8 kDa (FST-344 isoform) |
| Molecular Formula | Recombinant protein — empirical formula not standardly reported |
| Sequence | FST-344: 344-residue secreted glycoprotein (mature isoform begins GNCWLRQAKNGRCQVLYKTELSKEECCSTGRL...). Full-length sequence per UniProt P19883. |
| Purity | ≥99%+ (HPLC) |
| Form | Lyophilised powder |
| Storage | Store lyophilised at -20°C. Protect from light. Reconstituted: aliquot and store at -80°C. Use within 30 days of reconstitution. |
| Reconstitution | Reconstitute in sterile water or PBS. Typical stock concentration: 0.1-0.5 mg/mL; carrier protein (e.g. 0.1% BSA) recommended for dilute working solutions. |
Every order of Follistatin 344 includes a batch-specific CoA with HPLC chromatogram, mass spectrometry data, and laboratory accreditation details.
Follistatin 344 (FST-344) is the 344-residue isoform of human follistatin, a secreted glycoprotein researched for binding and neutralising myostatin and activin A in skeletal-muscle and endocrine signalling studies.
99%+, confirmed by independent third-party HPLC analysis. Batch-specific CoA included.
No. Supplied for in vitro laboratory research only. Not a licensed medicine.
Follistatin 344 is supplied by Premio Peptides (BELL RED LIMITED) exclusively for in vitro laboratory research. It is not a licensed medicine, is not approved for human or veterinary use, and must not be administered to any living organism outside a formally approved research protocol. Purchasers assume full responsibility for compliance with applicable regulations.
