Recombinant Human IL4 Protein

• Cat.No.: IL4-80H
• Product Overview: IL-4 was produced in E. coli cells transformed with human IL-4 gene. This product is sterile and does not contain any components of animal origin.

Specification

• Description: The protein encoded by this gene is a pleiotropic cytokine produced by activated T cells. This cytokine is a ligand for interleukin 4 receptor. The interleukin 4 receptor also binds to IL13, which may contribute to many overlapping functions of this cytokine and IL13. STAT6, a signal transducer and activator of transcription, has been shown to play a central role in mediating the immune regulatory signal of this cytokine. This gene, IL3, IL5, IL13, and CSF2 form a cytokine gene cluster on chromosome 5q, with this gene particularly close to IL13. This gene, IL13 and IL5 are found to be regulated coordinately by several long-range regulatory elements in an over 120 kilobase range on the chromosome. IL4 is considered an important cytokine for tissue repair, counterbalancing the effects of proinflammatory type 1 cytokines, however, it also promotes allergic airway inflammation. Moreover, IL-4, a type 2 cytokine, mediates and regulates a variety of human host responses such as allergic, anti-parasitic, wound healing, and acute inflammation. This cytokine has been reported to promote resolution of neutrophil-mediated acute lung injury. In an allergic response, IL-4 has an essential role in the production of allergen-specific immunoglobin (Ig) E. This pro-inflammatory cytokine has been observed to be increased in COVID-19 (Coronavirus disease 2019) patients, but is not necessarily associated with severe COVID-19 pathology. Two alternatively spliced transcript variants of this gene encoding distinct isoforms have been reported.
• Source: E. coli
• Species: Human
• Tag: Tag free
• AA Sequence: HKCDITLQEIIKTLNSLTEQKTLCT ELTVTDIFAASKNTTEKETFCRAAT VLRQFYSHHEKDTRCLGATAQQFHR HKQLIRFLKRLDRNLWGLAGLNSCP VKEANQSTLENFLERLKTIMREKYS KCSS
• Purity: > 95% by SDS-PAGE
• Applications: Research
• Quality Control Test: Verified by Mass Spectrometry analyses and disulfide mapping.
• Notes: For research use only
• Storage: Avoid repeated freeze-thaw cycles. 12 months at -20 to -80 centigrade. 1 month at 2 to 8 centigrade.
• Concentration: 1.0 mg/mL
• Storage Buffer: Sterile filtered through a 0.2 micron filter in 50% glycerol, 10 mM Phosphate buffer at pH 7, 200 mM

Gene Information

• Gene Name: IL4 interleukin 4 [ Homo sapiens (human) ]
• Official Symbol: IL4
• Synonyms: IL4; interleukin 4; interleukin-4; B cell growth factor 1; B_cell stimulatory factor 1; BCGF 1; BCGF1; BSF1; IL 4; lymphocyte stimulatory factor 1; MGC79402; binetrakin; pitrakinra; IL-4; BSF-1; BCGF-1
• Gene ID: 3565
• mRNA Refseq: NM_000589
• Protein Refseq: NP_000580
• MIM: 147780
• UniProt ID: P05112