Anti-IL4R Antibody

IL4R (INTERLEUKIN 4 RECEPTOR) is a human gene that encodes the alpha chain of the interleukin-4 receptor, a type I transmembrane protein that can bind interleukin 4 and interleukin 13 to regulate IgE antibody production in B cells. The IL4R gene is localized to 16p12.1-p11.2 by in situ hybridization and Southern blot analysis of DNA from a panel of mouse-human somatic cell lines. IL4 plays a major role in immunoglobulin E (IgE) production. Its signal is conferred to effector cells through binding to the alpha chain of the IL4 receptor. IL4 interacts with IL4R with high affinity, leading to dimerization with either the common gamma chain, a component of receptors for a number of cytokines, to create a type I receptor, or with IL13RA1 to form a type II receptor.The IL4R gene contains 12 exons and IL4R is a complex of at least 2 components, one of which is a novel affinity converting subunit that is critical for cellular signal transduction. See also IL13RA1 and IL13RA2.

Growth regulator. Inhibits the proliferation of a number of tumor cell lines. It regulates cytokine production, including IL-6, G-CSF and GM-CSF from endothelial cells (By similarity) . Uses only type II OSM receptor (heterodimers composed of OSMR and IL6ST) . Involved in the maturation of fetal hepatocytes, thereby promoting liver development and regeneration.

1. Bergin, A.-M., Balder, B., Kishore, S., Sward, K., Hahn-Zoric, M., Lowhagen, O., Hanson, L. A., Padyukov, L. Common variations in the IL4R gene affect splicing and influence natural expression of the soluble isoform. Hum. Mutat. 27: 990-998, 2006. 2. Blaeser, F., Bryce, P. J., Ho, N., Raman, V., Dedeoglu, F., Donaldson, D. D., Geha, R. S., Oettgen, H. C., Chatila, T. A. Targeted inactivation of the IL-4 receptor alpha chain I4R motif promotes allergic airway inflammation. J. Exp. Med. 198: 1189-1200, 2003. 3. Ikizawa, K; Yanagihara Y (Feb. 2000) . Possible involvement of Shc in IL-4-induced germline epsilon transcription in a human B cell line. Biochem. Biophys. Res.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.