Interleukin-16 Mouse Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 127 amino acids and having a molecular mass of 13.2 kDa. The Mouse IL-16 is purified by proprietary chromatographic techniques. Purity >90.0% as determined by(a) Analysis by RP-HPLC. (b) Analysis SDS-PAGE.