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商品編號


CHI-HF-22004-C050



品牌


Adipogen



公司


Adipogen



公司分類(lèi)


Proteins



Size

50 ?g

商品信息


More Information



Product Details



Synonyms

Interleukin-4; B Cell Stimulatory Factor 1; BSF-1



Product Type

Protein



Properties



Source/Host

CHO cells



Sequence

The extracellular domain of human IL-4 (aa 1-153) is fused to the N-terminus of the Fc region of a mutant human IgG1.



Crossreactivity

Human



BIOLOG
ical Activity

Shows the
BIOLOG
ical function of the IL-4 moiety and exerts a prolonged circulating half-life caused by the modified Fc domain.



Purity

≥98% (SDS-PAGE)



Endotoxin Content

<0.06eu mu;g="" protein="" (lal="" test;="" lonza).="">0.06eu>



Reconstitution

Reconstitute 10?g vial in 100?l sterile water.
Reconstitute 50?g vial in 50?l sterile water.
Add 1X PBS to the desired protein concentration.



Formulation

Lyophilized from 0.2μm-filtered solution in PBS.



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_000580: IL-4 (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.



Use/St
ABI
lity

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



MSD
S

No



Product Specification Sheet



Datasheet


Download PDF





Interleukin-4 (IL-4) is a cytokine produced by type 2 helper T cells, the Th2 cells. These cells tends to make a specific set of lymphokines including IL-4, IL-5, IL-6, IL-10, IL-13, IL-3 and GM-CSF and fail to produce IL-2, IFN-γ, and lymphotoxin (TNF-β). In addition, mast cells can produce IL-4. IL-4 exerts numerous effects on various hematopoietic cell types. On B cells, IL-4 promotes immunoglobulin class switching to IgE and IgG1 isotypes and upregulates MHC class II and CD23 expression. IL-4 promotes survival, growth, and differentiation of both T and B lymphocytes, mast cells and endothelial cells. In addition, IL-4 inhibits the production of TNF, IL-1, and IL-6 by macrophages.


Product References

Prolonged islet allograft acceptance in the absence of interleukin 4 expression: P. Nickerson, et al.; Transpl. Immunol.
4,
81 (1996)