IL4 Protein (Native, Human)
Product Specifications
Abbreviation
IL4
Synonyms
BCGF-1, BCGF1, BSF-1, BSF1, IL-4, MGC79402
Host
E. coli
Tag
Native
Endotoxin
<10 EU per mg protein
Purity
≥ 95 % as determined by SDS-PAGE. ≥ 95 % as determined by SEC-HPLC.
Bioactivity
Measured in a cell proliferation assay using TF‐1 human erythroleukemic cells. The ED50 for this effect is 0.05-0.25 ng/mL. The specific activity of recombinant human IL-4 is >10,000 IU/μg which is calibrated against the human IL-4 WHO International Standard (NIBSC code: 88/656) .
Function
His25-Ser153
Molecular Weight
The recombinant human IL4 consists of 130 amino acids and migrates with an apparent molecular mass of 15.1 kDa as predicted.
Species
Human
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