Prolamins are a group of plant storage proteins having a high proline amino acid content. They are found in plants, mainly in the seeds of cereal grains such as wheat (gliadin), barley (hordein), rye (secalin), corn (zein), sorghum (kafirin), and oats (avenin). They are characterised by a high glutamine and proline content, and have poor solubility in water. They solubilise best in strong alcohol [70-80%], light acid, and alkaline solutions. The prolamins of the tribe Triticeae, such as wheat gliadin, and related proteins (see Triticeae glutens) are known to trigger coeliac disease, an autoimmune condition, in genetically predisposed individuals.
- Shewry PR, Halford NG. Cereal seed storage proteins: structures, propertin utilization. J Exp Bot 2002;53:947-58. PMID__ 11912237.
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