Abstract
Six different monoclonal antibodies (MAb) have been obtained which bind to components contained in extracts from Dermatophagoides. One out of the six MAb recognized molecules displaying IgE binding ability. This MAb (MADP-1) immunoprecipitated allergenic polypeptides of 42 kDa and 30 kDa from 125I-labeled extracts of D. pteronyssinus and D. farinae respectively. Purified allergen preparations from both extracts have been obtained by affinity chromatography using a column of purified MADP-1 coupled to Sepharose. The purified fractions partially compete the binding of specific IgE contained in sera from sensitized patients to the whole extracts, in a radioallergosorbent inhibition test.
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