Recombinant Human IL-29/IFN-lambda 1 Protein

Name: Recombinant Human IL-29/IFN-lambda 1 Protein
Brand: Novus Biologicals
SKU: NBP2-34996

Novus Biologicals, part of Bio-Techne | Catalog # NBP2-34996

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Product Specifications
Preparation & Storage
Background
Product Documents
Specific Notices

Key Product Details

Source

E. coli

Accession #

Q8IU54

Conjugate

Unconjugated

Applications

Bioactivity, SDS-PAGE

View all IL-29/IFN-lambda 1 Proteins and Enzymes »

Product Specifications

Description

A single non-glycosylated polypeptide chain containing 181 amino acids corresponding to IL-29/IFN-lambda 1 Source: E. coli

Uniprot ID: Q8IU54

Amino Acid Sequence: GPVPTSKPTT TGKGCHIGRF KSLSPQELAS FKKARDALEE SLKLKNWSCS SPVFPGNWDL RLLQVRERPV ALEAELALTL KVLEAAAGPA LEDVLDQPLH TLHHILSQLQ ACIQPQPTAG PRPRGRLHHW LHRLQEAPKK ESAGCLEASV TFNLFRLLTR DLKYVADGNL CLRTSTHPES T

This lyophilized preparation is stable for 12 months from date of receipt at -20 to -70 degrees C, preferably desiccated. Upon reconstitution, the preparation can be stored for 1 month at 2-8 degrees C under sterile conditions, and for 3 months at -20 degrees C to -70 degrees C. Use a manual defrost freezer and avoid repeated freeze-thaw cycles. Stock solutions should be aliquoted and stored at < -20 degrees C. Further dilutions should be made in appropriate buffered solutions

Purity

> 97 % pure by SDS-PAGE and HPLC

Endotoxin Level

Less than 1 EU/ug of IL-29/IFN-lambda 1 as determined by LAL method.

Predicted Molecular Mass

19.8 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Activity

Fully biologically active when compared to standard. The ED50 as determined by an anti-viral assay using human HepG2 cells infected with encephalomyocarditis is less than 5 ng/ml, corresponding to a specific activity of > 2.0 x 10^5 IU/mg.

Protein / Peptide Type

Recombinant Protein

Formulation, Preparation and Storage

NBP2-34996

Formulation	Lyophilized from a 0.2 um filtered concentrated solution in PBS, pH 7.4.
Preservative	No Preservative
Concentration	Lyoph
Reconstitution	Recommended to centrifuge prior to opening. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/mL. Apportion stock solutions into working aliquots and store at
Format	Carrier-Free
Shipping	The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage	Store at -20 to -70C as supplied. After reconstitution, store at 2 to 8C for 1 month and at -20 to -70C for long term storage. Avoid repeated freeze-thaw cycles.

Background: IL-29/IFN-lambda 1

IL-28A, IL-28B, and IL-29, also named interferon-lambda 2 (IFN-lambda 2), IFN-lambda 3, and IFN-lambda 1, respectively, are newly identified class II cytokine receptor ligands that are distantly related to members of the IL-10 family (11-13% a.a. sequence identity) and the type IIFN family (15-19 % a.a. sequence identity). The expression of IL-28A, B, and IL-29 is induced by virus infection or doublestranded RNA. All three cytokines exert bioactivities that overlap those of type I IFNs, including antiviral activity and upregulation of MHC class I antigen expression. The three proteins signal through the same heterodimeric receptor complex that is composed of the IL-10 receptor lambda (IL-10 R beta) and a novel IL-28 receptor alpha (IL-28 R alpha, also known as IFN-lambda R1). Ligand binding to the receptor complex induces Jak kinase activation and STAT1 and STAT2 tyrosine phosphorylation.

Long Name

Interleukin 29

Alternate Names

IFN-lambda 1, IL29, IFN-lambda1, IFN-lambda1/IL-29

Gene Symbol

IFNL1

UniProt