Description：Recombinant Human IFNA2 Protein is produced by E. coli. It is a single non-glycosylated polypeptide chain containing 166 amino acids with a molecular mass of 19400 Daltons. The Interferon-α2b gene was obtained from human leukocytes.Form：Lyophilized from a 0.2 μM filtered solution of 20mM PB, 150mM NaCl, pH 7.2.Gene Symbol：IFNA2Alternative Names：Interferon alpha-2; IFN-alpha-2; Interferon alpha-A; LeIF A Entrez Gene (Human)： 3440; SwissProt (Human)： P01563; Purity：Greater than 95% as determined by RP-HPLC and reducing SDS-PAGE.Chemical Structure：MCDLPQTHSL GSRRTLMLLA QMRRISLFSC LKDRHDFGFP QEEFGNQFQK AETIPVLHEM IQQIFNLFST KDSSAAWDET LLDKFYTELY QQLNDLEACV IQGVGVTETP LMKEDSILAV RKYFQRITLY LKEKKYSPCA WEVVRAEIMR SFSLSTNLQE SLRSKEDirections 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.