Mouse anti Human IL4 monoclonal antibody, clone 4121

Mouse Anti-Human IL4 monoclonal antibody for ELISA(Cap), WB. Interleukin-4 (IL-4), also known as B cell-stimulatory factor-1, is a monomeric, approximately 13-18 kDa Th2 cytokine that shows pleiotropic effects during immune responses. It is a glycosylated polypeptide that contains three intrachain disulfide bridges and adopts a bundled four alpha-helix structure. Human IL-4 is synthesized with a 24 aa signal sequence. Alternate splicing generates an isoform with a 16 aa internal deletion. Mature human IL-4 shares 55%, 39% and 43% aa sequence identity with bovine, mouse, and rat IL-4, respectively. Human, mouse, and rat IL-4 are species-specific in their activities. IL-4 exerts its effects through two receptor complexes. The type I receptor, which is expressed on hematopoietic cells, is a heterodimer of the ligand binding IL-4 R alpha and the commongamma chain (a shared subunit of the receptors for IL-2,-7,-9,-15, and-21). The type II receptor on nonhematopoietic cells consists of IL-4 R alpha and IL-13 R alpha 1. The type II receptor also transduces IL-13 mediated signals. IL-4 is primarily expressed by Th2-biased CD4+ T cells, mast cells, basophils, and eosinophils. It promotes cell proliferation, survival, and immunoglobulin class switch to IgG4 and IgE in human B cells, acquisition of the Th2 phenotype by naГЇve CD4+ T cells, priming and chemotaxis of mast cells, eosinophils, and basophils, and the proliferation and activation of epithelial cells. IL-4 plays a dominant role in the development of allergic inflammation and asthma.

Prices direct from Creative Diagnostics

Quick response times

Exclusive Biosave savings/discounts

SPECIFICATIONS

Catalog Number

CABT-L213

Hosts

Mouse

Reactivities

Hum

Conjugates

Unconj

Clone

4121

Target

IL4

Gene Id

3565

Isotype

IgG1

Clonality

Monoclonal

Storage Temp

Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 В°C as supplied. 1 month, 2 to 8 В°C under sterile conditions after reconstitution. 6 months, -20 to -70 В°C under sterile conditions after reconstitution.