|
Product Name
|
Recombinant Human Interleukin-4
(rHuIL-4)
|
|
Synonyms
|
BCGF, BCDF, B cell stimulating factor (BSF-1)
|
|
Source
|
Expressed in E. coli
|
|
Molecular weight
|
Approximately 15.0 kDa, 129 amino acids
|
|
Accession
|
P05112 His25-Ser153
|
|
Protein amino acid sequence
|
HKCDITLQEIIKTLNSLTEQKTLCTELTVTDIFAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKEANQSTLENFLERLKTIMREKYSKCSS
|
|
Purity
|
＞98% by SDS-PAGE or HPLC
|
|
Biological activity
|
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human TF-1 cells is less than 0.2 ng/ml, corresponding to a specific activity of > 5.0 × 106 IU/mg.
|
|
Formulation
|
Lyophilized from a 0.2μm filtered solution in 20mM PB, 150mM NaCl, 0.02% Tween-20, pH 5.0.
|
|
Endotoxin level
|
＜0.1EU/μg rHuIL-4 protein
|
|
Reconstitution
|
Before use this product, please read the direction below carefully.
1、 This vial must be briefly centrifuged prior to opening to bring the contents to the bottom.
2、 Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/ml.
Stock solutions should be apportioned into working aliquots and stored at ≤-20℃. Further dilutions should be made in appropriate buffered solutions.
|
|
Storage/ Stability
|
For long term storage, the product should be stored ≤-20℃.
36 months, -20 to -70℃ as supplied.
1 month, 2 to 8℃ under sterile conditions after reconstitution;
3 months, -20 to -70℃ under sterile conditions after reconstitution.
Please avoid repeated freeze-thaw cycles.
|
|
THIS PRODUCT IS FOR RESEARCH, LABORATORY AND EVALUATION PURPOSE ONLY.
|
