Description

Understanding Follistatin-344’s Structure

Buy Follistatin-344 (1mg) in Texas. Follistatin-344 represents the full-length precursor isoform of the human follistatin protein, containing 344 amino acids . The single FST gene encodes two isoforms, FST317 and FST344, resulting from alternative splicing of the precursor mRNA . Consequently, Follistatin-344 undergoes post-translational processing to generate the circulating FS315 isoform . Therefore, this precursor form serves as a crucial tool for studying TGF-β superfamily signaling pathways.

Key Research Applications and to Buy Follistatin-344 (1mg) in Texas

Researchers study Follistatin-344 for its potent inhibition of myostatin (GDF-8), a negative regulator of skeletal muscle growth . Moreover, it neutralizes activins, which participate in reproductive endocrinology and inflammatory signaling processes . Additionally, investigations explore its role in tissue remodeling, fibrosis mitigation, and regenerative biology . Notably, preclinical studies demonstrate that FS344 gene delivery significantly increases muscle mass and strength . Thus, researchers can Buy Follistatin-344 (1mg) in Texas for advanced metabolic and neuromuscular studies.

Mechanism of Action Explained

Follistatin-344 binds to myostatin and activins with high affinity, preventing their interaction with ActRIIB receptors . Furthermore, this sequestration blocks SMAD2/3-dependent transcriptional programs that constrain myogenic differentiation and growth . Importantly, the FS344 isoform generates the serum-circulating FS315 variant, which has a 10-fold lower affinity for activin compared to FS288 . Therefore, this isoform offers a safety margin by reducing potential pituitary-gonadal axis complications in research models .

Storage and Handling Guidelines

Proper storage is vital for maintaining peptide stability and purity over time. Specifically, the lyophilized powder should be stored at -20°C to -80°C for long-term preservation . Moreover, reconstituted solutions can be stored at 2-8°C for up to one month under sterile conditions . Therefore, researchers should aliquot the protein immediately after reconstitution to avoid repeated freeze-thaw cycles . Consequently, you can Buy Follistatin-344 (1mg) in Texas from suppliers that clearly state their research-use policy.

Important Safety and Compliance

All Follistatin-344 products are sold strictly for research purposes only and are not for human or veterinary use . Furthermore, this product is not authorized or licensed by the FDA, MHRA, or EMA for any therapeutic indication . Therefore, only trained and qualified laboratory personnel should handle this compound. Additionally, researchers must verify supplier compliance with all applicable regulations and anti-doping codes before purchasing.

FAQ About Follistatin-344

Q: What is Follistatin-344?
A: It is the 344-amino acid precursor isoform of human follistatin, a secreted glycoprotein .

Q: How does Follistatin-344 work?
A: It binds and neutralizes TGF-β superfamily members, particularly myostatin and activins .

Q: Is Follistatin-344 approved for human use?
A: No, it is strictly a research chemical and is not FDA-approved for any medical purpose .

Q: What purity is available for research?
A: Research-grade suppliers offer >85-95% purity as confirmed by SDS-PAGE analysis .

Q: How should Follistatin-344 be stored?
A: Store lyophilized powder at -20°C to -80°C; refrigerate reconstituted solutions at 2-8°C .