کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5134142 1492073 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of transglutaminase-catalyzed glycosylation on the allergenicity and conformational structure of shrimp (Metapenaeus ensis) tropomyosin
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Effect of transglutaminase-catalyzed glycosylation on the allergenicity and conformational structure of shrimp (Metapenaeus ensis) tropomyosin
چکیده انگلیسی


- Transglutaminase-catalyzed glycosylation can modulate the IgE binding capacity of tropomyosin.
- The glycosylation rate correlated with reaction temperature.
- Conformational structure of tropomyosin can be modified by transglutaminase-catalyzed glycosylation.
- Transglutaminase-catalyzed glycosylation can be used for allergenicity reduction of tropomyosin.

Tropomyosin (TM), a myofibrillar protein, is a major allergen in shrimp. The aim of this study was to evaluate the effect of transglutaminase (TGase)-catalyzed glycosylation on the potential allergenicity and conformational structure of TM in Metapenaeus ensis. Results showed that glycosylation of TM induced unfolding of the primary protein structure followed by loss of the secondary structure. Cleavage of certain free amino groups was observed during TGase-catalyzed glycosylation. The glycosylation rate correlated with reaction temperature. Western blotting and indirect ELISA with TM-specific polyclonal antibodies from rabbit and sera from patients allergic to shrimp demonstrated that antigenicity and potential allergenicity of TM decreased, which correlated well with the conformational changes in its structure. Considering TGase is widely utilized in the food industry, these results indicate that TGase-catalyzed glycosylation has the potential to serve as a mild method for reducing the allergenicity of shrimp products.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 219, 15 March 2017, Pages 215-222
نویسندگان
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