CSN2 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 236 amino acids (16-226 a.a.) and having a molecular mass of 26.6kDa. CSN2 is fused to a 25 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques. Purity >95.0% as determined by SDS-PAGE.