Purity >85% by SDS-PAGE, MW: 42.7 kDa. DRG1 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 387 amino acids (1-367 a.a.) and having a molecular mass of 42.7kDa.DRG1 is fused to a 20 amino acid His-tag at N-terminus and purified by proprietary chromatographic techniques.