Cat#:RP-3999H;Product Name:Recombinant Human IGFBP3 Protein(His Tag);Synonym:Insulin-like growth factor-binding protein 3, Insulin Like Growth Factor Binding Protein-3, His Tag, IGFBP3, IBP-3, IGF-binding protein 3, IGFBP-3, IBP3, BP-53, Insulin-like growth factor binding protein 3 isoform b precursor.;Description:Recombinant human IGFBP3 Protein produced in E.coli is a single, non-glycosylated polypeptide chain containing 285 amino acids (28-291a.a.) and having a molecular mass of 31kDa. Recombinant human IGFBP3 protein is fused to a 20 amino acid His-tag at N-terminus and purified by our unique chromatographic techniques.;Source:E.coli;Purity:Greater than 90.0% as determined by analysis by SDS-PAGE.;Formulation:Recombinant human IGFBP3 protein solution (1mg/ml) containing 20mM Tris-HCl buffer (pH8.0) and 10% glycerol.;Stability:Recombinant human IGFBP3 Proteins are stable for up to 1 year from date of receipt at -70℃;Storage:Store recombinant human IGFBP3 protein at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid repeated freeze-thaw cycles.;References: Yan X, Payet LD, Baxter RC, Firth SM (2009). "Activity of human pregnancy insulin-like growth factor binding protein-3: determination by reconstituting recombinant complexes". Endocrinology. 150: 4968–76. ;