||IL-28A, IL-28B, and IL-29, also named interferon-λ2 (IFN-λ2), IFN-λ3, and IFN-λ1, respectively, are newly identified class II cytokine receptor ligands that are distantly related to members of the IL-10 family (11-13% aa sequence identity) and type I IFN family (15 - 19% aa sequence identity).
||DNA expressed inE.Coli.
||< 1 EU/µg.
||It is recommended that sterile PBS containing at least 0.1% human serum albumin or bovine serum albumin be added to the vial to prepare a stock solution of no less than 10 μg/mL.
||Phosphate-buffered saline (PBS) containing 50µg of BSA per 1µg of cytokine.
||A combination of ion exchange, hydrophobic interaction and size exclusion chromatography.
||Wet ice, Physical State of Product During Shipping is Lyophilized.
||After receipt, this product should be kept at -70˚C or below for retention of full activity. Upon reconstitution, this cytokine can be stored under sterile conditions at 2˚C to 8˚C for one month or at -20˚C to -70˚C in a manual defrost freezer for three months without detection loss of activity. Avoid repeated freeze-thaw cycles.