Description：Recombinant Human DEFB4A/DEFB4B Protein is produced by E. coli expression system and the target gene encoding Gly24-Pro64 is expressed with a 6His tag at the C-terminus.Form：Lyophilized from a 0.2 μM filtered solution of 20mM PB, 130mM NaCl, pH 7.4Gene Symbol：DEFB4A; DEFB4BAlternative Names：DEFB102; DEFB2; DEFB4; Beta-defensin 4A; Beta-defensin 2; BD-2; hBD-2; Defensin, beta 2; Skin-antimicrobial peptide 1; SAP1 Entrez Gene (Human)： 100289462; 1673; SwissProt (Human)： O15263; Purity：Greater than 95% as determined by SEC-HPLC and reducing SDS-PAGE.Chemical Structure：GIGDPVTCLK SGAICHPVFC PRRYKQIGTC GLPGTKCCKK PDirections for Use：Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/ml. Dissolve the lyophilized protein in 1X PBS. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.Quality Control：Endotoxin: Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test.Storage/Stability：Lyophilized protein should be stored at -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at -20°C for 3 months.