The prevalence of fish allergies has become a serious health problem and has increased alarmingly over the past few years. To contain this problem, we would need to identify all commonly consumed fish allergens. To date, however, no report has identified largemouth bass allergens. This
study attempted to identify and purify the major allergen implicated in the allergic response to largemouth bass (Micropterus salmoides), a freshwater fish widely consumed in China. Fifteen patients with a positive history of type I allergy to fish were recruited from skin-prick test
and the allergy screen. Total protein extracts and purified allergenic protein from bass were tested for their immunoglobulin E–binding properties. Immunoblot assay resulted in strong reactivity with the 17-kDa protein in all patients. In summary, nucleoside diphosphate kinase B was
identified as a novel fish allergen in largemouth bass. This finding is important for allergy diagnoses and the treatment of freshwater fish–allergic disorders.
Affiliations:1: College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China 2: School of Biotechnology, East China University of Science and Technology, Shanghai, People's Republic of China 3: College of Food Science and Technology, Henan University of Technology, Zhengzhou, People's Republic of China