Recombinant Human Interleukin-4 (IL4) (Active)
This Recombinant Human Interleukin-4 (IL4) (Active) spans the amino acid sequence from region 25-153aa. Purity: Greater than 95% as determined by SDS-PAGE.
Product Specifications
Product Name Alternative
Interleukin-4; IL-4; B-Cell Stimulatory Factor 1; BSF-1; Binetrakin; Lymphocyte Stimulatory Factor 1; Pitrakinra; IL4
UniProt
P05112
Expression Region
25-153aa
Tag
Tag free
Source
Mammalian cell
Origin
Homo sapiens (Human)
Field of Research
Immunology & Inflammation
Endotoxin
≤10 EU/mg by the LAL method
Purity
Greater than 95% as determined by SDS-PAGE.
Bioactivity
Measured in a cell proliferation assay using TF-1 cells, The ED50 for this effect is ≤ 0.2 ng/mL, orresponding to a specific activity of > 1x 10^7 units/mg.
Form
Lyophilized powder
Molecular Weight
15 kDa
Storage Conditions
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Notes
For research use only.
Applications Notes
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Preservative
Lyophilized from a 0.2 μm filtered solution containing PBS, 5% mannitoland 0.01% Tween 80, pH 7.4
AA Sequence
HKCDITLQEIIKTLNSLTEQKTLCTELTVTDIFAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKEANQSTLENFLERLKTIMREKYSKCSS
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