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Gliadin

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165: 441:. Individuals with celiac disease exhibit a lifelong intolerance of wheat, barley and rye – all of which contain prolamins. The main problem with this disease is that it often goes unrecognized for many years, in which case it can cause serious damage to several organs, and most cases currently remain unrecognized, undiagnosed and untreated. 420:. This is done because gliadins are soluble in alcohol and cannot be mixed with other foods (like milk) without changing the food's qualities. Deamidated gliadin is soluble in water. The cellular immunity to deamidated α-/β-gliadin is much greater than α/β-gliadin and can result in symptomatic gluten-sensitive enteropathy. 363: 266:
meaning that they have continuously altering shapes making it difficult to study them. The performed image analysis and computer simulations of the proteins show that the average shape of the gliadins follows an elliptical shape. More specifically the protein likely has a tadpole-like structure with
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Celiac disease with "non-classic symptoms" is the most common clinical type and occurs in older children (over 2 years old), adolescents and adults. It is characterized by milder or even absent gastrointestinal symptoms and a wide spectrum of non-intestinal manifestations that can involve any organ
448:(intestinal disease) caused by an abnormal immune response in genetically susceptible individuals. Specific amino acid sequences within the gliadin proteins are responsible for this activity. It occurs as a result of 515:
in which the affected person does not ingest any gluten-containing products. There have been searches for an affordable and much better treatment, but the only treatment remains to abstain from ingesting any gluten.
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located in matching locations as many of the gliadins. However, the gliadins are unable to form polymers in the cell since its cysteines form intra-chain disulphide bonds at synthesis due to
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Ribeiro M, Nunes-Miranda JD, Branlard G, Carrillo JM, Rodriguez-Quijano M, Igrejas G (November 2013). "One hundred years of grain omics: identifying the glutens that feed the world".
275:, gliadins are monomeric molecules in the cell, even if they in many ways are very similar. Especially the low molecular weight glutenins are similar in the way that they have 456:
then enter the epithelium and express NK receptors specific for gliadin and transglutaminase causing intraepithelial T cells to kill enterocytes by mediating apoptosis.
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of the body, and very frequently may be completely asymptomatic both in children (at least in 43% of the cases) and adults. Untreated celiac disease may cause
866:"Aggregation of gluten proteins - from wheat seed biology to hydrogels : scientific modelling based primarily on Monte-Carlo and HPLC methods" 437:(or coeliac disease) is a chronic, immune-mediated intestinal disorder, in which the body becomes intolerant to gliadin, which is a component of 655:
Chirdo FG, Rumbo M, Añón MC, Fossati CA (November 1998). "Presence of high levels of non-degraded gliadin in breast milk from healthy mothers".
220:, but gliadins are soluble in 70% aqueous ethanol. There are three main types of gliadin (α, γ, and ω), to which the body is intolerant in 707:"A curated gluten protein sequence database to support development of proteomics methods for determination of gluten in gluten-free foods" 243:
The α, γ, and ω gliadin types are separated and distinguished based on their amino acid sequences in the N-terminal cysteine domain.
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Gliadins are capable to aggregate into larger oligomers and interact with other gluten proteins, due to large hydrophobic sections,
812:"Glutenin and Gliadin, a Piece in the Puzzle of their Structural Properties in the Cell Described through Monte Carlo Simulations" 1400:
Vriezinga SL, Schweizer JJ, Koning F, Mearin ML (September 2015). "Coeliac disease and gluten-related disorders in childhood".
213:. Gluten is split about evenly between the gliadins and glutenins, although there are variations found in different sources. 152: 896:"Clustering and cross-linking of the wheat storage protein α-gliadin: A combined experimental and theoretical approach" 263: 352: 1179:
Lundin KE, Wijmenga C (September 2015). "Coeliac disease and autoimmune disease-genetic overlap and screening".
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Mowat AM (April 2003). "Coeliac disease--a meeting point for genetics, immunology, and protein chemistry".
1299:"Diagnosis of gluten related disorders: Celiac disease, wheat allergy and non-celiac gluten sensitivity" 758:"The gamma-gliadin multigene family in common wheat (Triticum aestivum) and its closely related species" 136: 1222:
Lionetti E, Gatti S, Pulvirenti A, Catassi C (June 2015). "Celiac disease from a global perspective".
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Bromilow S, Gethings LA, Buckley M, Bromley M, Shewry PR, Langridge JI, Clare Mills EN (June 2017).
1498: 545: 501: 477: 550: 525: 409: 296: 1519: 530: 394: 351:(also known as gluten-sensitive enteropathy) are sensitive to α, β, and γ gliadins. Those with 292: 267:
a hydrophobic core and a loose disordered tail. Compared to the other gluten proteins like the
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Fasano A (April 2005). "Clinical presentation of celiac disease in the pediatric population".
999:"Coeliac disease: a diverse clinical syndrome caused by intolerance of wheat, barley and rye" 497: 375: 316: 250:γ-gliadins – ancestral form of cysteine-rich gliadin with only intrachain disulfide bridges 119: 1351:
Ludvigsson JF, Card T, Ciclitira PJ, Swift GL, Nasr I, Sanders DS, Ciacci C (April 2015).
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Ludvigsson JF, Card T, Ciclitira PJ, Swift GL, Nasr I, Sanders DS, Ciacci C (April 2015).
201:, are essential for giving bread the ability to rise properly during baking. Gliadins and 8: 356: 299:, potentially form β-sheets aggregates or simply entangles by its structural properties. 288: 1469: 1444: 1425: 1377: 1352: 1325: 1298: 1204: 1113: 1088: 1064: 1039: 976: 933: 838: 811: 784: 757: 733: 706: 632: 605: 452:
recognition of deaminated gliadin polypeptide chains within the intestinal epithelium.
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Elli L, Branchi F, Tomba C, Villalta D, Norsa L, Ferretti F, et al. (June 2015).
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Sollid LM, Jabri B (December 2005). "Is celiac disease an autoimmune disorder?".
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and greater mortality. It is associated with some autoimmune diseases, such as
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Gliadins are known for their role, along with glutenin, in the formation of
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Markgren J, Rasheed F, Hedenqvist MS, Skepö M, Johansson E (2022-06-30).
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Markgren J, Hedenqvist M, Rasheed F, Skepö M, Johansson E (July 2020).
280: 253:ω-gliadins – soluble in higher percentages, 30–50% acidic acetonitrile. 1460: 582: 319:. Gliadin peptides cross the intestinal barrier by active transport. 489: 413: 340: 272: 865: 568: 382:). This helps protect them from stomach acids that cause breakdown. 535: 493: 473: 379: 308: 276: 268: 202: 193: 180: 176: 88: 42: 693: 606:"Parallels between pathogens and gluten peptides in celiac sprue" 408:
is produced by acid or enzymatic treatment of gluten. The enzyme
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Gliadin can also serve as a useful delivery method for sensitive
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links. They also cause some of the best examples of food-derived
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Qi PF, Wei YM, Ouellet T, Chen Q, Tan X, Zheng YL (April 2009).
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are the two main components of the gluten fraction of the wheat
1353:"Support for patients with celiac disease: A literature review" 1040:"Support for patients with celiac disease: A literature review" 485: 438: 328: 232: 198: 188: 147: 1399: 1221: 893: 809: 704: 1086: 184: 1350: 1037: 511:
The only available treatment for celiac disease is a strict
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Gliadin proteins have the ability to provoke an autoimmune
206: 109: 76: 295:. These sections are likely to aggregate hydrophobically, 164: 224:. Diagnosis of this disease has recently been improving. 1296: 1224:
Best Practice & Research. Clinical Gastroenterology
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Ciccocioppo R, Di Sabatino A, Corazza GR (June 2005).
654: 1174: 1172: 1170: 1089:"The immune recognition of gluten in coeliac disease" 235:
foods presents high levels of non-degraded gliadin.
1443:Lebwohl B, Ludvigsson JF, Green PH (October 2015). 1250: 247:α-/β-gliadins – soluble in low-percentage alcohols. 1445:"Celiac disease and non-celiac gluten sensitivity" 1436: 1393: 1167: 900:International Journal of Biological Macromolecules 271:, which form extended networks of polymers due to 1402:Nature Reviews. Gastroenterology & Hepatology 1346: 1344: 1215: 1181:Nature Reviews. Gastroenterology & Hepatology 1506: 755: 597: 1143:. Autoimmunity / Allergy and hypersensitivity. 1031: 996: 1341: 1178: 1134: 1132: 603: 227:Gliadin can cross the intestinal epithelium. 385:For useful description of the gliadins see: 1290: 1138: 1129: 209:. This gluten is found in products such as 648: 1497:at the U.S. National Library of Medicine 1468: 1376: 1324: 1314: 1112: 1063: 1014: 944: 911: 837: 827: 783: 773: 732: 722: 631: 621: 1357:United European Gastroenterology Journal 1044:United European Gastroenterology Journal 1003:The Proceedings of the Nutrition Society 997:McGough N, Cummings JH (November 2005). 863: 657:Scandinavian Journal of Gastroenterology 361: 163: 1507: 1261: 604:Bethune MT, Khosla C (February 2008). 378:, which is fused with gliadin to form 992: 990: 950: 400: 197:. Gliadins, which are a component of 1093:Clinical and Experimental Immunology 859: 857: 805: 803: 216:Both gliadins and glutenins are not 16:Protein in wheat & other cereals 13: 987: 472:, an increased risk of intestinal 311:and are separated on the basis of 58:Gliadin N-terminal helical domain 14: 1536: 1488: 1303:World Journal of Gastroenterology 854: 800: 423: 264:intrinsically disordered proteins 231:of healthy human mothers who eat 1105:10.1111/j.1365-2249.2005.02783.x 339:and contain only intramolecular 1080: 876:from the original on 2022-05-16 302: 913:10.1016/j.ijbiomac.2022.05.032 887: 749: 698: 683: 562: 506:primary sclerosing cholangitis 412:converts some of the abundant 1: 1141:Current Opinion in Immunology 965:10.1016/S0140-6736(03)12989-3 556: 541:Non-celiac gluten sensitivity 359:are sensitive to ω-gliadins. 322: 104:Available protein structures: 1276:10.1053/j.gastro.2005.02.015 623:10.1371/journal.ppat.0040034 571:Journal of Proteome Research 297:liquid-liquid phase separate 257: 7: 724:10.1016/j.jprot.2017.03.026 519: 464:, reduced quality of life, 222:coeliac (or celiac) disease 10: 1541: 427: 1236:10.1016/j.bpg.2015.05.004 1193:10.1038/nrgastro.2015.136 1153:10.1016/j.coi.2005.09.015 669:10.1080/00365529850172557 395:Immunochemistry of gluten 353:wheat-dependent urticaria 146: 126: 108: 103: 99: 87: 75: 67: 62: 57: 41: 33: 28: 23: 1499:Medical Subject Headings 1414:10.1038/nrgastro.2015.98 1369:10.1177/2050640614562599 1316:10.3748/wjg.v21.i23.7110 1056:10.1177/2050640614562599 775:10.1186/1471-2164-10-168 546:Gluten-related disorders 502:dermatitis herpetiformis 478:diabetes mellitus type 1 238: 551:Intestinal permeability 526:Anti-gliadin antibodies 410:tissue transglutaminase 366:Tissue transglutaminase 191:within the grass genus 531:Gluten immunochemistry 367: 169: 1525:Seed storage proteins 1270:(4 Suppl 1): S68-73. 711:Journal of Proteomics 365: 167: 829:10.3390/biom10081095 498:autoimmune hepatitis 376:superoxide dismutase 331:. They are slightly 317:isoelectric focusing 293:repetitive sequences 24:Gliadin/LMW glutenin 864:Markgren J (2022). 1016:10.1079/pns2005461 870:pub.epsilon.slu.se 406:Deamidated gliadin 401:Deamidated gliadin 368: 187:and several other 170: 1461:10.1136/bmj.h4347 583:10.1021/pr400663t 390:Triticeae glutens 262:The gliadins are 233:gluten-containing 162: 161: 158: 157: 153:structure summary 53: 52: 1532: 1483: 1482: 1472: 1440: 1434: 1433: 1397: 1391: 1390: 1380: 1348: 1339: 1338: 1328: 1318: 1294: 1288: 1287: 1264:Gastroenterology 1259: 1248: 1247: 1219: 1213: 1212: 1176: 1165: 1164: 1136: 1127: 1126: 1116: 1084: 1078: 1077: 1067: 1035: 1029: 1028: 1018: 994: 985: 984: 959:(9365): 1290–2. 948: 942: 941: 915: 891: 885: 884: 882: 881: 861: 852: 851: 841: 831: 807: 798: 797: 787: 777: 753: 747: 746: 736: 726: 702: 696: 687: 681: 680: 652: 646: 645: 635: 625: 601: 595: 594: 566: 513:gluten-free diet 273:disulphide bonds 179:) is a class of 101: 100: 55: 54: 21: 20: 1540: 1539: 1535: 1534: 1533: 1531: 1530: 1529: 1505: 1504: 1491: 1486: 1441: 1437: 1398: 1394: 1349: 1342: 1295: 1291: 1260: 1251: 1220: 1216: 1177: 1168: 1137: 1130: 1085: 1081: 1036: 1032: 995: 988: 949: 945: 892: 888: 879: 877: 862: 855: 808: 801: 754: 750: 703: 699: 688: 684: 663:(11): 1186–92. 653: 649: 602: 598: 577:(11): 4702–16. 567: 563: 559: 522: 466:iron deficiency 432: 430:Coeliac disease 426: 403: 325: 313:electrophoretic 305: 286: 260: 241: 17: 12: 11: 5: 1538: 1528: 1527: 1522: 1517: 1503: 1502: 1490: 1489:External links 1487: 1485: 1484: 1435: 1392: 1340: 1309:(23): 7110–9. 1289: 1249: 1214: 1166: 1147:(6): 595–600. 1128: 1079: 1030: 986: 943: 886: 853: 799: 748: 697: 682: 647: 610:PLOS Pathogens 596: 560: 558: 555: 554: 553: 548: 543: 538: 533: 528: 521: 518: 435:Celiac disease 428:Main article: 425: 424:Celiac disease 422: 402: 399: 398: 397: 392: 357:baker's asthma 349:celiac disease 347:. People with 324: 321: 304: 301: 283:interactions. 259: 256: 255: 254: 251: 248: 240: 237: 160: 159: 156: 155: 150: 144: 143: 130: 124: 123: 113: 106: 105: 97: 96: 91: 85: 84: 79: 73: 72: 69: 65: 64: 60: 59: 51: 50: 45: 39: 38: 35: 31: 30: 26: 25: 15: 9: 6: 4: 3: 2: 1537: 1526: 1523: 1521: 1520:Glycoproteins 1518: 1516: 1513: 1512: 1510: 1500: 1496: 1493: 1492: 1480: 1476: 1471: 1466: 1462: 1458: 1454: 1450: 1446: 1439: 1431: 1427: 1423: 1419: 1415: 1411: 1408:(9): 527–36. 1407: 1403: 1396: 1388: 1384: 1379: 1374: 1370: 1366: 1363:(2): 146–59. 1362: 1358: 1354: 1347: 1345: 1336: 1332: 1327: 1322: 1317: 1312: 1308: 1304: 1300: 1293: 1285: 1281: 1277: 1273: 1269: 1265: 1258: 1256: 1254: 1245: 1241: 1237: 1233: 1230:(3): 365–79. 1229: 1225: 1218: 1210: 1206: 1202: 1198: 1194: 1190: 1187:(9): 507–15. 1186: 1182: 1175: 1173: 1171: 1162: 1158: 1154: 1150: 1146: 1142: 1135: 1133: 1124: 1120: 1115: 1110: 1106: 1102: 1099:(3): 408–16. 1098: 1094: 1090: 1083: 1075: 1071: 1066: 1061: 1057: 1053: 1050:(2): 146–59. 1049: 1045: 1041: 1034: 1026: 1022: 1017: 1012: 1009:(4): 434–50. 1008: 1004: 1000: 993: 991: 982: 978: 974: 970: 966: 962: 958: 954: 947: 939: 935: 931: 927: 923: 919: 914: 909: 905: 901: 897: 890: 875: 871: 867: 860: 858: 849: 845: 840: 835: 830: 825: 821: 817: 813: 806: 804: 795: 791: 786: 781: 776: 771: 767: 763: 759: 752: 744: 740: 735: 730: 725: 720: 716: 712: 708: 701: 695: 691: 686: 678: 674: 670: 666: 662: 658: 651: 643: 639: 634: 629: 624: 619: 615: 611: 607: 600: 592: 588: 584: 580: 576: 572: 565: 561: 552: 549: 547: 544: 542: 539: 537: 534: 532: 529: 527: 524: 523: 517: 514: 509: 507: 503: 499: 495: 491: 487: 486:gluten ataxia 483: 479: 475: 471: 467: 463: 462:malabsorption 457: 455: 451: 447: 442: 440: 436: 431: 421: 419: 418:glutamic acid 415: 411: 407: 396: 393: 391: 388: 387: 386: 383: 381: 377: 373: 364: 360: 358: 354: 350: 346: 342: 338: 334: 330: 320: 318: 315:mobility and 314: 310: 307:Gliadins are 300: 298: 294: 290: 284: 282: 278: 274: 270: 265: 252: 249: 246: 245: 244: 236: 234: 230: 225: 223: 219: 218:water-soluble 214: 212: 208: 204: 200: 196: 195: 190: 186: 182: 178: 174: 166: 154: 151: 149: 145: 142: 138: 134: 131: 129: 125: 121: 117: 114: 111: 107: 102: 98: 95: 92: 90: 86: 83: 80: 78: 74: 70: 66: 61: 56: 49: 46: 44: 40: 37:Glia_glutenin 36: 32: 27: 22: 19: 1452: 1448: 1438: 1405: 1401: 1395: 1360: 1356: 1306: 1302: 1292: 1267: 1263: 1227: 1223: 1217: 1184: 1180: 1144: 1140: 1096: 1092: 1082: 1047: 1043: 1033: 1006: 1002: 956: 952: 946: 903: 899: 889: 878:. Retrieved 869: 819: 816:Biomolecules 815: 765: 762:BMC Genomics 761: 751: 714: 710: 700: 690:CID 17787981 685: 660: 656: 650: 613: 609: 599: 574: 570: 564: 510: 508:, and more. 470:osteoporosis 458: 443: 433: 404: 384: 369: 345:pathogenesis 326: 306: 303:Biochemistry 285: 261: 242: 226: 215: 192: 172: 171: 18: 906:: 592–615. 822:(8): 1095. 482:thyroiditis 454:CD8 T cells 446:enteropathy 281:hydrophobic 229:Breast milk 211:wheat flour 183:present in 175:(a type of 63:Identifiers 29:Identifiers 1509:Categories 1451:(Review). 1404:(Review). 1226:(Review). 880:2022-06-10 616:(2): e34. 557:References 450:CD4 T cell 414:glutamines 323:Metabolism 116:structures 1455:: h4347. 938:248805639 922:0141-8130 717:: 67–75. 490:psoriasis 474:lymphomas 374:(such as 341:disulfide 309:prolamins 277:cysteines 269:glutenins 258:Chemistry 203:glutenins 94:IPR016140 48:IPR001954 1479:26438584 1422:26100369 1387:25922674 1335:26109797 1284:15825129 1244:26060103 1209:24533103 1201:26303674 1161:16214317 1123:15932501 1074:25922674 1025:16313685 981:10259661 973:12699968 930:35577195 874:Archived 848:32717949 794:19383144 743:28385663 642:18425213 591:24032428 536:Glutenin 520:See also 494:vitiligo 380:glisodin 194:Triticum 181:proteins 177:prolamin 133:RCSB PDB 89:InterPro 43:InterPro 1495:Gliadin 1470:4596973 1430:2023530 1378:4406900 1326:4476872 1114:1809391 1065:4406900 839:7465137 785:2685405 768:: 168. 734:5479479 694:PubChem 677:9867098 633:2323203 372:enzymes 337:ethanol 333:soluble 189:cereals 173:Gliadin 168:Gliadin 82:PF13016 71:Gliadin 1515:Gluten 1501:(MeSH) 1477:  1467:  1428:  1420:  1385:  1375:  1333:  1323:  1282:  1242:  1207:  1199:  1159:  1121:  1111:  1072:  1062:  1023:  979:  971:  953:Lancet 936:  928:  920:  846:  836:  792:  782:  741:  731:  675:  640:  630:  589:  439:gluten 329:gluten 289:poly-Q 199:gluten 148:PDBsum 122:  112:  68:Symbol 34:Symbol 1426:S2CID 1205:S2CID 977:S2CID 934:S2CID 692:from 239:Types 185:wheat 1475:PMID 1418:PMID 1383:PMID 1331:PMID 1280:PMID 1240:PMID 1197:PMID 1157:PMID 1119:PMID 1070:PMID 1021:PMID 969:PMID 926:PMID 918:ISSN 844:PMID 790:PMID 739:PMID 673:PMID 638:PMID 587:PMID 355:and 291:and 207:seed 141:PDBj 137:PDBe 120:ECOD 110:Pfam 77:Pfam 1465:PMC 1457:doi 1453:351 1449:BMJ 1410:doi 1373:PMC 1365:doi 1321:PMC 1311:doi 1272:doi 1268:128 1232:doi 1189:doi 1149:doi 1109:PMC 1101:doi 1097:140 1060:PMC 1052:doi 1011:doi 961:doi 957:361 908:doi 904:211 834:PMC 824:doi 780:PMC 770:doi 729:PMC 719:doi 715:163 665:doi 628:PMC 618:doi 579:doi 416:to 335:in 128:PDB 1511:: 1473:. 1463:. 1447:. 1424:. 1416:. 1406:12 1381:. 1371:. 1359:. 1355:. 1343:^ 1329:. 1319:. 1307:21 1305:. 1301:. 1278:. 1266:. 1252:^ 1238:. 1228:29 1203:. 1195:. 1185:12 1183:. 1169:^ 1155:. 1145:17 1131:^ 1117:. 1107:. 1095:. 1091:. 1068:. 1058:. 1046:. 1042:. 1019:. 1007:64 1005:. 1001:. 989:^ 975:. 967:. 955:. 932:. 924:. 916:. 902:. 898:. 872:. 868:. 856:^ 842:. 832:. 820:10 818:. 814:. 802:^ 788:. 778:. 766:10 764:. 760:. 737:. 727:. 713:. 709:. 671:. 661:33 659:. 636:. 626:. 612:. 608:. 585:. 575:12 573:. 504:, 500:, 496:, 492:, 488:, 484:, 480:, 468:, 139:; 135:; 118:/ 1481:. 1459:: 1432:. 1412:: 1389:. 1367:: 1361:3 1337:. 1313:: 1286:. 1274:: 1246:. 1234:: 1211:. 1191:: 1163:. 1151:: 1125:. 1103:: 1076:. 1054:: 1048:3 1027:. 1013:: 983:. 963:: 940:. 910:: 883:. 850:. 826:: 796:. 772:: 745:. 721:: 679:. 667:: 644:. 620:: 614:4 593:. 581::

Index

InterPro
IPR001954
Pfam
PF13016
InterPro
IPR016140
Pfam
structures
ECOD
PDB
RCSB PDB
PDBe
PDBj
PDBsum
structure summary

prolamin
proteins
wheat
cereals
Triticum
gluten
glutenins
seed
wheat flour
water-soluble
coeliac (or celiac) disease
Breast milk
gluten-containing
intrinsically disordered proteins

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