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
Wheat allergy high molecular weight glutenin subunit, and similar proteins in other "Triticeae" genera, enter the blood stream during exercise where they cause acute asthmatic or allergic reaction. One recent study of ω-gliadins demonstrated these gliadins are more similar to the bulk of oat avenins than α/β or γ gliadins but, so far, oat avenins have not been linked to WDEIA. Wheat may specifically induce WDEIA and certain chronic urticaria because the anti-gliadin IgE detects ω-gliadins expressed by most of the Gli-B1 alleles, but prolamins extracted from rye or wheat/rye translocates invoke almost no responses. The Gli-B1 gene in wheat, "Triticum aestivum",