[IL 4 CHO] recombinant human interleukin -4, CHO expression 
 Product Price 
 ￥ 800/2μg ￥ 2080/10μg ￥ 76800/1mg 

 Background 
 IL4 is a pleiotropic cytokine produced by activated T cells. IL4 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. IL4, IL13 and IL5 are found to be regulated coordinately by several long-range regulatory elements in an over 120 kilobase range on the chromosome. Two alternatively spliced ??transcript variants of this gene encoding distinct isoforms have been reported. 

 Product Description 
 Human interleukin -4, CHO expression of recombinant proteins in CHO Chinese hamster ovary cell recombinant expression, is a single chain, non-glycosylated polypeptide chain containing 129 amino acids, the molecular weight of 14kDa, as glycosylation resulting in SDS-PAGE electrophoresis revealed a molecular weight of 18 kDa. The human interleukin -4, CHO expression of recombinant proteins and ultimately by standard chromatographic techniques and purified. 

 Source host 
 CHO Chinese hamster ovary cells expressing recombinant 

 Sequence 


 Solution proposed 
 Provide human interleukin -4, CHO expression (IL 4 CHO) product is a white lyophilized powder filter sterilization; the lyophilized powder is with human interleukin -4, CHO expression (IL 4 CHO) in phosphate phosphate buffer saline (pH 7.4) in the freeze-dried produce. We recommend additional sterile 18MΩ-cm water for the preparation of working stock solution to 100μg/ml, follow-up experiment based on the experimental requirements can be further diluted. 

 Preservation proposal 
 Human interleukin -4, CHO expression (IL 4 CHO) lyophilized powder can be stored at room temperature for 3 weeks, or placed in -18 ℃ cryopreservation for long-term preservation. Re-dissolved in 4 ℃ refrigerator for at least 2-7 days; If you want to extend the storage time, the proposed packing (plus carrier protein such as 0.1% HSA or BSA) and placed in -18 ℃ cryopreservation. Avoid repeated freezing and thawing.