Original material is obtained from a healthy donor tested negative by US-FDA approved tests against HIV, HCV and Hepatitis B. Must be handled as potentially infectious as all human material. The purity of the human IgE is > 90%, tested by SDS-PAGE. As the IgE comes from a monoclonal cell line, there is no contamination of antibodies of other isotypes. The human IgE is purified by Protein L chromatography. The remaining contaminants are mainly components from Foetal Bovine Serum.
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