产品规格
Human
E. coli
HKCDITLQEI IKTLNSLTEQ KTLCTELTVT DIFAASKNTT EKETFCRAAT VLRQFYSHHE KDTRCLGATA QQFHRHKQLI RFLKRLDRNL WGLAGLNSCP VKEANQSTLE NFLERLKTIM REKYSKCSS
14.9 kDa
Recombinant
Protein
>95% by SDS-PAGE
<0.1 ng/µg
ED50 = 0.05 - 0.4 ng/mL; determined by the dose-dependent proliferation of human TF-1 cells.
Unconjugated
Liquid (1mg/ml)
sequential chromatography
no preservative
4° C
Carrier-Free
Reconstitution: Centrifuge the vial briefly, before opening to bring the contents to the bottom. Apportion the reconstituted protein into working aliquots and store at -20°C (not in a frost-free freezer). Avoid repeated freeze-thaw cycles.. Make any further dilutions of the reconstituted protein in low endotoxin medium or buffered solution with FCS or tissue culture grade BSA.
Interleukin-4 (IL-4) is a pleiotropic, immune-modulatory cytokine produced by activated T cells, and serves as a ligand for interleukin 4 receptor. IL-4 has been found to have the broadest range of actions. 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 an important role in mediating the immune regulatory signal of IL-4. The IL-4 gene, IL-3, IL-5, IL-13, and CSF2 form a cytokine gene cluster on chromosome 5q. In particular, IL-4 is located in close proximity to IL13 on the chromosome. Further, the IL-4 gene, IL13 and IL5 are found to be coordinated by several long-range regulatory elements over a 120 kilobase range on the chromosome. IL-4 delta 2 is a known splice variant of IL-4.
仅用于科研。不用于诊断过程。