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Follistatin-344

Field	Follistatin-344 × Last updated 2 months ago
Aliases	FS344, FST344, Human follistatin-344 precursor, AAV1.CMV.huFollistatin344
Category	Other Research Peptides
Formula	—
Molecular weight	37000 Da
Half-life	hours (recombinant protein, route-dependent)
Mechanism (summary)	Follistatin-344 is the 344-amino-acid precursor form of follistatin, a secreted glycoprotein. In human translational work it is most often encountered as an AAV-delivered transgene (AAV1.CMV.huFollistatin344), not as an injectable peptide — a distinction that materially affects how mechanism, dosing, and safety should be interpreted.
Dosing notes	Direct peptide dosing is unspecified in the retrieved human literature because the clinical evidence centers on AAV gene transfer, not peptide or recombinant follistatin injection. Recombinant laboratory reagents typically represent aa 30–344 protein products for research use only, not for human administration.

Storage	For recombinant human follistatin protein products, Bio-Techne states that lyophilized protein ships at ambient temperature but should then be stored under freezer conditions, avoiding repeated freeze-thaw cycles; reconstitution guidance includes 100 μg/mL in sterile PBS with carrier protein recommended. Novus lists 12 months at -20 to -70 °C as supplied, and about 1 month at 2–8 °C after reconstitution. Vendor values for recombinant protein formats only — not for gene-therapy vectors.

Storage

For recombinant human follistatin protein products, Bio-Techne states that lyophilized protein ships at ambient temperature but should then be stored under freezer conditions, avoiding repeated freeze-thaw cycles; reconstitution guidance includes 100 μg/mL in sterile PBS with carrier protein recommended. Novus lists 12 months at -20 to -70 °C as supplied, and about 1 month at 2–8 °C after reconstitution. Vendor values for recombinant protein formats only — not for gene-therapy vectors.