Beta Defensin-3 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 45 amino acids and having a molecular mass of 5161.2 Dalton. The BD-3 is purified by proprietary chromatographic techniques. Purity >95.0% as determined by(a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.