IFNL2, Recombinant, Human (Interferon lambda-2, IFN-lambda-2, Cytokine Zcyto20, Interleukin-28A, IL-

IFN -u-1,-2, and -3 (also known as IL-29, IL-28A and IL-28B respectively) are distantly related to the IL-10 family and Interferons. All three IFN-lambdas uses a distinct receptor system composed of an IFN-uR1 subunit (also called CRF2-12) and IL-10R2 subunit (also called CRF2-14). Signaling through this receptor system induces antiviral defense similar but distinct than the type I Interferons. Recombinant human IFN-lamda 2 is a 19.6kD protein containing 174aa. Source: Recombinant protein corresponding to IFN lamda 2, expressed in E.coli. Biological Activity: Determined by its ability to activate STAT following receptor-ligand interaction. Endotoxin: <0.1ng/ug (1EU/ug), AA Sequence: PVARLHGALP DARGCHIAQF KSLSPQELQA FKRAKDALEE SLLLKDCRCH SRLFPRTWDL RQLQVRERPM ALEAELALTL KVLEATADTD PALVDVLDQP LHTLHHILSQ FRACIQPQPT AGPRTRGRLH HWLYRLQEAP KKESPGCLEA SVTFNLFRLL TRDLNCVASG DLCV, Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.