Gliadin intolerance of wheat, barley and rye – all of which contain prolamins. Gliadin proteins have the ability to provoke an autoimmune enteropathy caused by an abnormal immune response in genetically susceptible individuals. Specific amino acid sequences within the gliadin proteins are responsible for this activity. The main problems with this disease is that it often goes unrecognized for many years, in which it can cause serious damage to several organs, and most cases currently remain unrecognized, undiagnosed and untreated. Mainly intestinal villi destruction mediated by Interferon Gamma and CD 4(+). Celiac disease with "non-classic symptoms" is the most common clinical
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