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 SLRSKEQuality Control：Endotoxin: Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test.Directions 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. 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.