Follistatin-344

Description

Follistatin-344 is a recombinant protein research material corresponding to the long precursor form of human follistatin. Unlike short synthetic peptides, Follistatin-344 is a substantially larger polypeptide containing multiple structurally organized domains and disulfide linkages. Recombinant preparations are utilized in controlled laboratory environments for protein characterization, biochemical interaction studies, binding assays, and molecular research under defined experimental conditions. Depending on the expression system, the material may contain post-translational modifications that influence its apparent molecular weight and analytical profile.

Research Applications:

Follistatin-344 may be utilized in controlled laboratory research settings for applications such as:

• Analytical characterization of recombinant protein identity, molecular size, and structural integrity
• Investigation of follistatin-associated protein-protein interactions in controlled biochemical binding assays
• Evaluation of protein stability and degradation profiles under defined laboratory conditions
• Examination of structure-function relationships involving follistatin domains in controlled biochemical and cell-based research systems

Storage and Handling:

• Store lyophilized material at -20°C or according to the manufacturer’s batch-specific storage instructions.
• Protect the material from excessive moisture, heat, and prolonged light exposure.
• Once prepared in solution, follow storage conditions based on validated stability data for the specific recombinant preparation.
• Avoid unnecessary repeated freeze-thaw cycles and use appropriate laboratory handling procedures to preserve protein integrity and minimize contamination.

Product Specifications:

• Purity: Refer to batch-specific SDS-PAGE, HPLC, SEC, or Certificate of Analysis results
• Appearance: Typically supplied as a lyophilized protein preparation; exact appearance should be confirmed against batch-specific documentation
• Expression System: Supplier-specific; verify whether the material is produced in bacterial, mammalian, or another recombinant expression system
• Solubility: Dependent on formulation, buffer composition, concentration, pH, and recombinant construct; refer to supplier-specific technical documentation

Compliance Notice:

Follistatin-344 is FOR RESEARCH USE ONLY. It is not intended for human or veterinary use. This product is supplied exclusively for controlled laboratory, analytical, and in vitro research purposes and is not intended for diagnostic, therapeutic, or clinical applications. Misuse of this product is strictly prohibited and may violate applicable federal, state, or local laws. By purchasing this product, the buyer represents and warrants that it will be used solely for legitimate laboratory research purposes.

Technical Note: Follistatin-344 should not be treated like a small synthetic peptide with one universally applicable molecular formula. Human FST344 refers to a 344-amino-acid precursor form, while biological processing can generate shorter mature follistatin forms. Commercial recombinant materials may also differ in signal-peptide processing, glycosylation, expression system, terminal modifications, purification tags, or formulation. For that reason, the exact molecular weight, sequence, construct identity, and analytical characteristics shown on the final product page should match the supplier documentation and batch-specific Certificate of Analysis (COA).