- Model NO.: 51-48-9
- Customized: Non-Customized
- Suitable for: Adult
- Purity: 85%
- Trademark: Yuanchen
- Specification: enterprise standard
- HS Code: 3004390090
- Powder: Yes
- Certification: ISO 9001
- State: Solid
- Appearance: Sterile Filtered White Lyophilized (Freeze-Dried)
- Transport Package: 1mg/Vial
- Origin: China
|Purity (by HPLC)||85%|
Stability: Lyophilized Follistatin although stable at room temperature for 3 weeks.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please prevent freeze-thaw cycles.
Purity: Greater than 95.0% as determined by (a) Analysis by RP-HPLC (b) Analysis by SDS-PAGE..
Storage Conditions: Aviod Shunshine and Keeping Stoppered
Packing: 1mg / vial, 2mg / vial
Follistatin is fascinating protein that can increase muscle mass beyond natural potential by suppressing myostatin. Scientists first identified follistatin while examining porcine (re: pig) follicular fluid in the ovaries.
Follistatin is naturally found in the skeletal muscle of almost all mammals with advanced or developed characteristics, such as humans, rodents, and cows. Follistatin is high in the
non-essential amino acid cystine but unlike most proteins discussed in the fitness world, follistatin has carbohydrates attached to it.
Follistatin, specifically Follistatin 344 (FS344), quickly gained popularity in the bodybuilding community as a potential supplement to rapidly increase lean tissue mass. Another protein, follistatin-related gene (FLRG) acts on similar pathways as FS344 regarding its muscle building properties. Increased lean tissue mass could give a bodybuilder an advantage in a competitive setting and be the differentiating factor between first and second place.
Follistatin (FST) is a secreted glycoprotein that was first identified as a follicle stimulating hormone inhibiting substance in ovarian follicular fluid (1, 2). Human Follistatin cDNA encodes a 344 amino acid (aa) protein with a 29 aa signal sequence, an Nterminal atypical TGF binding domain, three Follistatin domains that contain EGFlike and kazallike motifs, and a highly acidic Cterminal tail. Follistatin is a secreted protein that binds to ligands of the TGF-Beta 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-Beta ligands including BMP-2, -4, -6, -7, Myostatin, GDF-11, and TGF-Beta1. Follistatin is expressed in the pituitary, ovaries, decidual cells of the endometrium, and in some other tissues. Recombinant human Follistatin is a 37.8 kDa protein containing 344 amino acids .
In additional to suppressing the degenerative properties of myostatin, follistatin also suppresses the pituitary gland synthesis and secretion of follicle-stimulating hormone (FSH).  High FSH levels in men may indicate that testicles are not functioning correctly; this condition limits muscle growth, recovery, and normal hormonal function.However, FSH levels that are too low can also negatively impact health and reproductive capabilities.
Appearance White to off white powder Consistent
Purity(HPLC) ≥85% 85%
Water <6.0% 5.43%
Acetic Acid 3.0-8.0% 6.45%
Trifluoroacetic Acid <0.25% 0.08%
Peptide ≥80% 88.45%