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Wikipedia

Prolamin

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.[1]

Maize and sorghum prolamins are sorted by molecular weight into four classes, α, β, γ and δ. Alpha- and delta- prolamins cluster in a broad phylogenetic group (Group 1). The rest cluster into Group 2. Group 1 is widely duplicated in the two plants.[2] A database of Triticeae prolamins (glutens) is available.[3] There does not seem to be an analysis that tries to cluster both sources of prolamins into a grand classification.[citation needed]

References Edit

  1. ^ Shewry PR, Halford NG. Cereal seed storage proteins: structures, propertin utilization. J Exp Bot 2002;53:947-58. PMID__ 11912237.
  2. ^ Holding, DR (2014). "Recent advances in the study of prolamin storage protein organization and function". Frontiers in Plant Science. 5: 276. doi:10.3389/fpls.2014.00276. PMC 4064455. PMID 24999346.
  3. ^ Bromilow, S; Gethings, LA; Buckley, M; Bromley, M; Shewry, PR; Langridge, JI; Clare Mills, EN (23 June 2017). "A curated gluten protein sequence database to support development of proteomics methods for determination of gluten in gluten-free foods". Journal of Proteomics. 163: 67–75. doi:10.1016/j.jprot.2017.03.026. PMC 5479479. PMID 28385663.

External links Edit

  • Pfam clan Prolamin - a group of prolamin N-terminal domains with similar disulfide-bonding patterns

prolamin, redirects, here, heterocyclic, compound, pyrrolidine, group, plant, storage, proteins, having, high, proline, amino, acid, content, they, found, plants, mainly, seeds, cereal, grains, such, wheat, gliadin, barley, hordein, secalin, corn, zein, sorghu. Prolamine redirects here For the heterocyclic compound see Pyrrolidine 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 1 Maize and sorghum prolamins are sorted by molecular weight into four classes a b g and d Alpha and delta prolamins cluster in a broad phylogenetic group Group 1 The rest cluster into Group 2 Group 1 is widely duplicated in the two plants 2 A database of Triticeae prolamins glutens is available 3 There does not seem to be an analysis that tries to cluster both sources of prolamins into a grand classification citation needed References Edit Shewry PR Halford NG Cereal seed storage proteins structures propertin utilization J Exp Bot 2002 53 947 58 PMID 11912237 Holding DR 2014 Recent advances in the study of prolamin storage protein organization and function Frontiers in Plant Science 5 276 doi 10 3389 fpls 2014 00276 PMC 4064455 PMID 24999346 Bromilow S Gethings LA Buckley M Bromley M Shewry PR Langridge JI Clare Mills EN 23 June 2017 A curated gluten protein sequence database to support development of proteomics methods for determination of gluten in gluten free foods Journal of Proteomics 163 67 75 doi 10 1016 j jprot 2017 03 026 PMC 5479479 PMID 28385663 External links EditPfam clan Prolamin a group of prolamin N terminal domains with similar disulfide bonding patterns nbsp This protein related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Prolamin amp oldid 1165572176, wikipedia, wiki, book, books, library,

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