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Antigens and allergens from the common house dust mite Dermatophagoides pteronyssinus. Part I. Demonstration of multiple allergens by immunochemical and biologic analyses



Antigens and allergens from the common house dust mite Dermatophagoides pteronyssinus. Part I. Demonstration of multiple allergens by immunochemical and biologic analyses



Journal of Allergy and Clinical Immunology 74(2): 132-141



The complexity of a highly allergenic water-soluble extract of the common house dust mite Dermatophagoides pteronyssinus has been investigated by use of the preparative fractionation techniques of ultrafiltration, gel permeation chromatography, and isoelectric focusing, and the allergenic properties of the resultant fractions are assessed by skin prick tests, RAST, and a histamine-release assay. In addition, two analytical approaches were used to identify allergens-radioimmunoelectrophoresis and a new technique for detecting IgE-binding proteins separated by isoelectric focusing and transferred onto a nitrocellulose membrane by transverse electrophoresis. These various techniques for allergen detection revealed differences in the number and distribution of allergens in the crude mite extract. The data obtained are consistent with the conclusion that allergenic activity of D. pteronyssinus extracts is due to the existence of a number of antigenically distinct allergens and not due to a single, major allergen.

Accession: 001301767

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PMID: 6747134


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