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Key Documents

SRP3203

Sigma-Aldrich

IFN-lambda 2 from mouse

≥98% (SDS-PAGE & HPLC), recombinant, expressed in E. coli, lyophilized suitable for cell culture

Synonym(s):

IL-28A

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About This Item

UNSPSC Code:
12352202
NACRES:
NA.32

product name

IFN-lambda 2 from mouse, recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture

biological source

mouse

recombinant

expressed in E. coli

Assay

≥98% (HPLC)
≥98% (SDS-PAGE)

form

lyophilized

mol wt

19.8 kDa

packaging

pkg of 20 μg

technique(s)

cell culture | mammalian: suitable

impurities

<0.1 EU/μg endotoxin, tested

color

white to off-white

UniProt accession no.

Q4VK74

shipped in

wet ice

storage temp.

−20°C

Gene Information

mouse ... IL28A(338374)

Related Categories

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Characterization of the mouse IFN-lambda ligand-receptor system: IFN-lambdas exhibit antitumor activity against B16 melanoma.
Lasfar A, et al.
Cancer Research, 66, 4468-4468 (2006)
Interleukin-28A enhances autoimmune disease in a retinal autoimmunity model.
Ren X, et al.
Cytokine, 70, 179-179 (2014)
An important role for type III interferon (IFN-lambda/IL-28) in TLR-induced antiviral activity.
Ank N, et al.
Journal of Immunology, 180, 2474-2474 (2008)
L S Laursen et al.
FEBS letters, 504(1-2), 36-40 (2001-08-28)
Pregnancy-associated plasma protein-A (PAPP-A) has recently been identified as the proteinase responsible for cleavage of insulin-like growth factor binding protein (IGFBP)-4, an inhibitor of IGF action, in several biological fluids. Cleavage of IGFBP-4 by PAPP-A is believed to occur only
Sergei V Kotenko et al.
Nature immunology, 4(1), 69-77 (2002-12-17)
We report here the identification of a ligand-receptor system that, upon engagement, leads to the establishment of an antiviral state. Three closely positioned genes on human chromosome 19 encode distinct but paralogous proteins, which we designate interferon-lambda1 (IFN-lambda1), IFN-lambda2 and
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