Purity >90% by SDS-PAGE, MW: 12.0 kDa. VOPP1 Human Recombinant fused with a 21 amino acid His tag at N-terminus produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 112 amino acids (82-172 a.a.) and having a molecular mass of 12kDa. The VOPP1 is purified by proprietary chromatographic techniques.