Given the task definition and input, reply with output. In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

IgE antibody to twelve common food and inhalant allergens was measured by enzyme - linked immunosorbent assay ( ELISA ) in the sera of thirteen atopic patients with one or more allergic disorders ( asthma occurring in eleven ; rhinitis in ten ; eczema in six ; urticaria in four ; mouth and gastro - intestinal symptoms in six ) , of twelve non - atopic patients with various clinical symptoms ( asthma in four ; rhinitis in four ; eczema in one ; urticaria in two ; mouth and gastro - intestinal symptoms in four ) and sixteen cord blood sera .
IgE antibody