IFN-LAMBDA 2 FROM MOUSE RECOMBINANT EXPRESSED IN E. COLI >=98% (SDS-PAGE) >=98% (HPLC) CELL CULTURE TESTED

Biochem/physiol Actions

IFN-λ 2 (Ifnl2) belongs to the type III interferon (IFN-λ) family of proteins. It is associated with antiviral, antitumor and immune activities. In a retinal autoimmunity mouse model, Ifnl2 increases the autoimmune disease. Ifnl2 signals via IFN (interferon)-λ receptor complex consisting of IL-10Rβ (interleukin 10 receptor β) and the IL-28Rα chains. The signaling pathway involves JAK1 (Janus kinase 1)/TYK2 (non-receptor tyrosine-protein kinase) tyrosine kinases, transcription factor complex IFN-stimulated gene factor 3 containing STAT1 (signal transducer and activator of transcription 1), STAT2 and IFN regulatory factor (IRF)-9.
Recombinant murine IFN-l2 is a 19.8kDa protein containing 175 amino acid residues.

Sequence

MDPVPRATRL PVEAKDCHIA QFKSLSPKEL QAFKKAKDAI EKRLLEKDMR CSSHLISRAW DLKQLQVQER PKALQAEVAL TLKVWENMTD SALATILGQP LHTLSHIHSQ LQTCTQLQAT AEPKPPSRRL SRWLHRLQEA QSKETPGCLE DSVTSNLFRL LTRDLKCVAS GDQCV

Physical form

Lyophilized from 20 mM Sodium Phosphate, pH 7.5.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.