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Mol Immunol. 1985 Sep;22(9):1081-9.

Isolation of the major IgE-binding protein from Parietaria judaica pollen using monoclonal antibodies.

Abstract

Allergen molecules from Parietaria judaica pollen, a widely distributed allergy inducer in Southern and Western Europe, have been studied using specific monoclonal antibodies (MAbs). MAbs against IgE-binding components were selected in a 4-step radioimmunoassay. Three different MAbs (AC/1.1, AC/7.1 and AC/15.1) were obtained which recognized epitope(s) located on a polypeptide of 10 Kd (Pj10). This polypeptide displayed the highest IgE-binding ability under either native or SDS-denatured conditions, as determined by immunoadsorption and immunodetection after SDS-PAGE, respectively. The Pj10-containing allergen, purified on an AC/1.1 MAb-Sepharose column, was able to inhibit most of the binding of specific IgE to the pollen extract coupled to paper discs in an inhibition radioallergosorbent test (RAST). The affinity-purified allergen exhibited the same immunoelectrophoretic behaviour as the native allergen.

PMID:
2415813
[PubMed - indexed for MEDLINE]
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