Recombinant Human Follistatin (FS) is a purified Prokaryotic Protein. Purity: >95% by SDS-PAGE. Host: E. coli. Endotoxin Level: <1.0EU per 1ug, by the LAL method. Species: Human (Homo sapiens). Target Name: Follistatin (FS). Target Synonyms: FST, Activin-binding protein. Accession Number: P19883. Gene ID: 10468. Expression Region: Arg35~Val283. Tag Info: N-terminal His Tag. Theoretical MW: 33kDa. Buffer: PBS, pH7.4, containing 0.01% SKL, 5% Trehalose. Storage: -20C. Avoid repeated freeze/thaw cycles. Restrictions: For Research Use Only. Not for use in diagnostic procedures.