Analysis of allergen components in grass pollen extracts using immunoblotting.

Sera of 60 allergic persons and 20 healthy RAST-negative control persons were examined using immunoblotting to establish the presence of grass pollen-specific antibodies. These antibodies were depicted by an enzymatic, immunoglobulin class-specific indicator system. Seven bands of the timothy pollen extract proved to be major allergens. One of the 4 grass pollen-specific monoclonal antibodies tested (Bo 1) recognized the 7 major allergen bands. The possibility of employing monoclonal antibodies for the isolation of allergens is discussed.