IL-27 (human):Fc (human) (recombinant protein) (non-lytic)

Specifications / Handling

More Information
Product Details
Synonyms	Interleukin-27
Product Type	Protein
Properties
Source/Host	CHO cells
Sequence	The human IL-27 complex composed of the Ebi3 subunit (aa 21-229) and the p28 subunit (aa 26-243) is fused through a polypeptide linker to the Fc portion of a mutant human IgG1.
Crossreactivity	Human
Biological Activity	Bioactivity was measured in a cell proliferation assay using anti-CD3 activated human peripheral mononuclear cells.
Purity	≥98% (SDS-PAGE)
Endotoxin Content	<0.06EU/μg protein (LAL test; Lonza).
Reconstitution	Reconstitute in 50µl sterile water. Add 1X PBS to the desired protein concentration.
Formulation	Lyophilized from 0.2μm-filtered solution in PBS.
Protein Negative Control	Fc (human) IgG1 Control (rec.) (non-lytic)
Other Product Data	Non-lytic: Acts as a long lasting fusion protein which only binds to the receptor. Mutations to the complement (C1q) and FcgR I binding sites of the IgGs Fc fragment render the fusion proteins incapable of antibody directed cytotoxicity (ADCC) and complement directed cytotoxicity (CDC). NCBI reference NP_005746.2: Ebi3 subunit (human) NCBI reference NP_663634.2: p28 subunit (human)
Declaration	Manufactured by Chimerigen.
Shipping and Handling
Shipping	BLUE ICE
Short Term Storage	+4°C
Long Term Storage	-20°C
Handling Advice	Avoid freeze/thaw cycles. Centrifuge lyophilized vial before opening and reconstitution.
Use/Stability	Stable for at least 1 year after receipt when stored at -20°C. Working aliquots are stable for up to 3 months when stored at -20°C.
Documents
Product Specification Sheet
Datasheet	Download PDF

Product-specific References

Description

Interleukin-27 (IL-27) is a heterodimeric group 2 receptor ligand molecule that belongs to the IL-6/IL-12 family of long type I cytokines. It is composed of EBI3 (EBV-induced gene 3), a 34 kDa glycoprotein that is related to the p40 subunit of IL-12 and IL-23, and p28, the cloned 28 kDa glycoprotein that is related to the p35 chain of IL-12. IL-27 is expressed by monocytes, endothelial cells and dendritic cells. IL-27 binds to and signals through a heterodimeric receptor complex composed of WSX1 (TCCR) and gp130. Evidence suggests IL-27 interacts only with WSX-1. IL-27 has both anti- and proinflammatory properties. As an antiinflammatory, IL-27 seems to induce a general negative feedback program that limits T and NK-T cell activity. At the onset of infection, IL-27 induces an IL-12 receptor on naïe CD4+ T cells, making them susceptible to subsequent IL-12 activity (and possible Th1 development). Notably, IL-12 family cytokines are both induced and inhibited by bacterial products. Microbes promote IL-27 secretion through TLR4, and also block IL-27 production via C5a induction.

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IL-27 (human):Fc (human) (rec.) (non-lytic)