Triticeae glutens causing them to stretch out in solution. Deamidation of 20% of glutamine side chains to glutamate suffices to generate a soluble product. This renders gluten soluble enough without alcohol to mix with other products like milk. Individuals who suffer from gluten-sensitive enteropathy/coeliac disease have an adverse reaction to the gluten in cultivars of Triticeae when eaten. In addition to bread wheat, rye and barley (which have similar glutens) are known to cause symptoms in coeliacs. Between 2 and 10% of gluten sensitive individuals are also sensitive to oats, but it is not clear how much of this is due to
Prolamin Prolamin Prolamins are a group of plant storage proteins having a high proline content and found on plant materials mainly like in the seeds of cereal grains: wheat (gliadin), barley (hordein), rye (secalin), corn (zein), sorghum (kafirin) and as a minor protein, avenin in oats. They are characterised by a high glutamine and proline content and are generally soluble only in strong alcohol [70-80%] solutions, light acids, and alkaline solution. They do not coagulate in heat. They hydrolyse into prolin and ammonia. Some prolamins, notably gliadin, and similar proteins found in the tribe Triticeae (see Triticeae glutens) may induce coeliac