NTS Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 172 amino acids (24-170 a.a.) and having a molecular mass of 19.9kDa. NTS is fused to a 25 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques. Purity >90.0% as determined by SDS-PAGE.