Recombinant IFN-α 2b, Human

• Catalog Number: orb1494844
• Category: Proteins
• Description: Interferon-Alpha 2b (IFN-Alpha 2b) produced by leukocytes is a member of Interferon family. IFN-alpha is mainly involved in innate immune response against a broad range of viral infections. IFN-alpha 2 has three acid stable forms (a,b,c) signaling through IFNAR2. IFN-alpha 2b shares 99.4% aa sequence identity with both IFN-alpha 2a and 2c. IFN-alpha contains four highly conserved cysteine residues which form two disulfide bonds, one of which is necessary for biological activity.Recombinant human Interferon-Alpha 2b (rhIFN-Alpha 2b) produced in E.coli is a single non-glycosylated polypeptide chain containing 165 amino acids. A fully biologically active molecule, rhIFN-Alpha 2b has a molecular mass of 19.2kDa analyzed by reducing SDS-PAGE and is obtained by proprietary chromatographic techniques at GenScript.
• Form/Appearance: Sterile Filtered White lyophilized (freeze-dried) powder.
• MW: 19.2kDa, observed by reducing SDS-PAGE.
• Protein Sequence: CDL PQTHSLGSRR TLMLLAQMRR ISLFSCLKDR HDFGFPQEEF GNQFQKAETI PVLHEMIQQI FNLFSTKDSS AAWDETLLDK FYTELYQQLN DLEACVIQGV GVTETPLMKE DSILAVRKYF QRITLYLKEK KYSPCAWEVV RAEIMRSFSL STNLQESLRS KE
• Source: Escherichia coli.
• Biological Activity: ED50 2.0× 10ˆ7 units/mg.
• Endotoxins: < 0.2 EU/μg, determined by LAL method.
• Storage: Lyophilized recombinant human Interferon-Alpha 2b (rhIFN-Alpha 2b) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rhIFN-Alpha 2b should be stable up to 2 weeks at 4°C or up to 3 months at -20°C.
• Buffer/Preservatives: Lyophilized after extensive dialysis against PBS.
• Alternative names: Interferon alpha 2b, IFNA, INFA2
• Note: For research use only
• Application notes: Reconstituted in ddH2O at 100 μg/ml.
• Expiration Date: 6 months from date of receipt.