Cat#:RP-2279R;Product Name:Recombinant Rat BD 4 Protein;Synonym:Beta-defensin 4, BD-4, BD-2, Defensin, beta 4, RBD-2, RBD-4, Defb4, Defb2, Defb3.;Description:BD-4 Rat Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 41 amino acids and having a molecular mass of 4.4kDa. The BD-4 is purified by proprietary chromatographic techniques.;Source:E.coli;AA Sequence:QSINNPITCL TKGGVCWGPC TGGFRQIGTC GLPRVRCCKK K.;Purity:>97.0% as determined by SDS-PAGE.;Bioactivity:Measured by its antimicrobial activity against E. coli. The ED50 for this effect is typically 5-50µg/ml.;Formulation:BD-4 protein was lyophilized from a 0.2µm filtered concentrated solution in PBS, pH 7.4.;Stability:Recombinant Proteins are stable for up to 1 year from date of receipt at -70℃;Reconstitution:It is recommended to reconstitute the lyophilized BD-4 in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.;Storage:Lyophilized BD-4 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution BD-4 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.;