CASQ2 Human Recombinant fused to 37 amino acid His Tag at N-terminal produced in E.coli is a single, non-glycosylated, polypeptide chain containing 417 amino acids (20-399 a.a.) and having a molecular mass of 48.4 kDa. The CASQ2 is purified by proprietary chromatographic techniques. Purity >95% as determined by SDS-PAGE.