Noggin produced in Sf9 Insectcells is a single, glycosylated polypeptide chain containing 2123.8kDa.(Molecular size on SDS-PAGEwill appear at approximately 28-40kDa). Noggin is expressed witha 6 amino acid His tag at C-Terminus and purified by proprietarychromatographic techniques. Purity >90.0% as determined by SDS-PAGE.