Gluten the final product with a chewy texture. Wheat, barley, rye and oat prolamins are respectively known as gliadins, hordeins, secalins and avenins; these protein classes are often collectively referred to as gluten. Wheat glutelins are called glutenin. True gluten is limited to the grains listed above. The storage proteins in maize and rice are sometimes called glutens, but they differ from true gluten. In a small part of the general human population, gluten can trigger adverse autoimmune reactions responsible for a broad spectrum of gluten-related disorders, including coeliac disease, non-coeliac gluten sensitivity, gluten ataxia and dermatitis herpetiformis. People with these
Gluten immunochemistry include: LTP (albumin/globulin), thioredoxin-hB, and wheat flour peroxidase. A particular 5 residue peptide, Gln-Gln-Gln-Pro-Pro motif, has been found to be a major wheat allergen. New immunogenic motifs appear in the literature almost monthly and new gliadin and "Triticeae" protein sequences appear that contain these motifs. The HLA DQ2.5 restricted peptide "I I Q P Q Q P A Q" produced approximately 50 hits of identical sequences in NCBI-Blast search is one of a several dozen known motifs whereas only a small fraction of Triticeae gluten variants have been examined. For this reason the immunochemistry is best discussed at the level