Chapter 1 Gluten: A Balance of Gliadin and Glutenin
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منابع مشابه
A Study to Assess the Role of Gluten Encoded Genes and Their Regulatory Elements in Bread Making Quality of Wheat
Introduction: Bread making quality is affected by gluten genes and balance between their expressions. Hence, it is necessary for a comprehensive research to study and compare all gluten genes and their regulating elements simultaneously. Objectives: The aim of this study was to evaluate the molecular mechanism of bread quality in the level of coding genes and regulating elements via compa...
متن کاملOptical Rotatory Dispersion, Circular Dichroism, and Infrared Studies of Wheat Gluten Proteins in Various Solventsl
The influence of various solvents upon the conformation of gluten proteins, glutenin and gliadin, has been studied by optical rotatory dispersion (ORD), circular dichroism (CD), and infrared (lR) absorption measurements. From ORD data an alpha-helix content of 38% has been calculated for gliadin in trifluoroethanol; 35% for glutenin. Conversely, little or no alpha-helix was found when the prote...
متن کاملIsolation and Characterization of Gliadin-Like Subunits from Glutenin
The polypeptide subunits of wheat glutenin obtained after reductive cleavage of disulfide bonds have been separated into two fractions by a modified Osborne technique. Approximately 62% of the subunits by weight are soluble, as is gliadin, in neutral 70% ethanol; the ethanol-soluble subunits are mainly of 44,000 molecular weight (MW). The ethanol-insoluble glutenin subunit fraction is markedly ...
متن کاملIdentification and characterization of proteolytically resistant gluten-derived peptides.
The lack of digestibility of certain gluten proteins is essential in the development of celiac disease (CD). Gluten proteins are remarkably resistant to luminal and brush-border proteolysis owing to their high proline and glutamine content. Consequently, large fragments remain intact after digestion exerting toxic effects. Intestinal brush-border membrane vesicles (BBMV) have been described as ...
متن کاملSpecific IgE determination to epitope peptides of omega-5 gliadin and high molecular weight glutenin subunit is a useful tool for diagnosis of wheat-dependent exercise-induced anaphylaxis.
Wheat omega-5 gliadin and a high m.w. glutenin subunit (HMW-glutenin) have been reported as major allergens in wheat-dependent exercise-induced anaphylaxis. A simultaneous detection of specific IgE to epitope sequences of both proteins is considered to be a reliable method for diagnosis of wheat-dependent exercise-induced anaphylaxis. However, the IgE-binding epitope of HMW-glutenin remains unk...
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