RH IFN-A 2B
Cat# 100-52-500UG
Size : 500UG
Brand : FUJIFILM
Recombinant Human IFN-α 2b
Interferon-alpha 2b (IFN-α 2b) is a type I interferon made by leukocytes during viral infection. The JAK-STAT pathway mediates the antiviral and anti-cell proliferation activities of IFN-α 2b. IFN-α proteins are widely used as standard treatments during antiviral and antineoplastic therapies. The IFN-α 2b variant differs from IFN-α 2a by one amino acid.
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Instructions
Centrifuge vial before opening. Suspend the product by gently pipetting the above recommended solution down the sides of the vial. DO NOT VORTEX. Allow several minutes for complete reconstitution. For prolonged storage, dilute to working aliquots in a 0.1% BSA solution, store at -80°C and avoid repeat freeze thaws.
Technical Specifications
| Alternate Names | Type I Interferon, Alpha 2 |
| Accession Number | P01563 |
| Source | Genetically modified E.coli |
| Predicted Molecular Mass | Monomer, 19.4 kDa (166 aa) |
| AA Sequence | MCDLPQTHSL GSRRTLMLLA QMRRISLFSC LKDRHDFGFP QEEFGNQFQK AETIPVLHEM IQQIFNLFST KDSSAAWDET LLDKFYTELY QQLNDLEACV IQGVGVTETP LMKEDSILAV RKYFQRITLY LKEKKYSPCA WEVVRAEIMR SFSLSTNLQE SLRSKE |
| Formulation | Lyophilized from a 0.2 µm filtered solution containing 0.1% Trifluoroacetic Acid (TFA) |
| Product Reconstitution | Sterile water at 0.1 mg/mL |
| Country of Origin | USA |
| Specification* | Method of Determination | Acceptance Criteria |
| Purity | Reducing and Non-Reducing SDS PAGE | ≥ 95% |
| Endotoxin | Kinetic LAL | ≤ 0.1 EU/µg |
| Biological Activity (ED50) | Viral CPE assay using EMC virus on A549 cells | ≤ 0.005 ng/mL; ≥ 2.0 x 108 units/mg |
*Lot-specific values for the above specifications are supplied with each product on its corresponding COA. The values provided here are minimum expected values to pass internal requirements.