Micro-assay method for evaluating the allergenicity of the major soybean allergen, Gly m Bd 30K, with mouse antiserum and RBL-2H3 cells.

A micro-assay method for evaluating the allergenicity of soybean allergen was developed by using the mouse antiserum against Gly m Bd 30K, a major soybean allergen, and RBL-2H3, a rat mucosal mast cell line. The antiserum against Gly m Bd 30K was prepared by subcutaneously immunizing BALB/c mice with the allergen. The behavior by affinity-chromatography and the properties against heat treatment show that the reaginic activity of the antiserum resided in the IgE antibody specific for Gly m Bd 30K. The developed assay method is shown to be useful for simulating IgE mediated type-I allergy and to be highly sensitive for detecting the allergen.