1351:
40:
396:
Rejzek M, Stevenson CE, Southard AM, Stanley D, Denyer K, Smith AM, Naldrett MJ, Lawson DM, Field RA (March 2011). "Chemical genetics and cereal starch metabolism: structural basis of the non-covalent and covalent inhibition of barley β-amylase".
327:; bacteria and cereal sources are the most heat stable. Working from the non-reducing end, β-amylase catalyzes the hydrolysis of the second α-1,4 glycosidic bond, cleaving off two glucose units (
214:
233:
688:
1070:
509:
226:
952:
681:
153:
1226:
177:
964:
359:
291:-glucosidic linkages in polysaccharides so as to remove successive maltose units from the non-reducing ends of the chains
811:
1341:
1211:
1327:
1314:
1301:
1288:
1275:
1262:
1249:
1022:
710:
674:
1221:
1175:
1118:
701:
660:
254:
171:
64:
1123:
874:
158:
1037:
782:
355:
1144:
1063:
238:
1216:
146:
996:
947:
81:
354:
tissues do not contain β-amylase, although it may be present in microorganisms contained within the
1180:
891:
879:
714:
76:
174:
1113:
935:
930:
908:
896:
735:
98:
1371:
903:
777:
624:
577:
505:
455:
414:
165:
1159:
1154:
1128:
1056:
913:
799:
614:
606:
567:
559:
497:
445:
406:
1206:
1190:
1103:
1033:
308:
269:
134:
189:
656:
110:
1355:
1244:
1185:
974:
886:
723:
666:
304:
257:
209:
69:
619:
590:
572:
543:
501:
450:
433:
1365:
1149:
1108:
920:
849:
832:
643:
524:
376:
339:, β-amylase breaks starch into maltose, resulting in the sweet flavor of ripe fruit.
184:
1098:
764:
193:
563:
1322:
1257:
1093:
991:
957:
925:
343:
1350:
488:
Manners DJ (1962). "Enzymic synthesis and degradation of starch and glycogen".
1001:
969:
1296:
1270:
839:
772:
749:
739:
697:
610:
280:
50:
39:
17:
459:
418:
628:
581:
473:
French D (1960). "β-Amylases". In Boyer PD, Lardy H, Myrbaumlck K (eds.).
844:
477:. Vol. 4 (2nd ed.). New York: Academic Press. pp. 345–368.
332:
316:
300:
827:
754:
744:
731:
410:
371:
347:
328:
312:
141:
122:
27:
Enzyme that hydrolyses alpha-1,4-D-glucosidic bonds in polysaccharides
1309:
1079:
351:
296:
265:
221:
117:
105:
93:
45:
1283:
1006:
787:
336:
324:
320:
646:"Amylase, Alpha", I.U.B.: 3.2.1.11,4-α-D-Glucan glucanohydrolase.
644:"Amylase, Alpha", I.U.B.: 3.2.1.11,4-α-D-Glucan glucanohydrolase.
984:
979:
940:
869:
864:
859:
854:
804:
792:
525:"Amylase, Alpha", I.U.B.: 3.2.1.11,4-α-D-Glucan glucanohydrolase
129:
1052:
670:
350:
also produce amylase to degrade extracellular starches.
1048:
544:"Cloning and characterization of the β-amylase gene from
358:. The optimum pH for β-amylase is 4.0–5.0 They belong to
342:β-amylase is present in an inactive form prior to seed
1339:
1235:
1199:
1168:
1137:
1086:
1021:
820:
763:
722:
709:
232:
220:
208:
203:
183:
164:
152:
140:
128:
116:
104:
92:
87:
75:
63:
58:
32:
432:Balls AK, Walden MK, Thompson RR (March 1948).
589:Rhodes C, Strasser J, Friedberg F (May 1987).
1064:
682:
434:"A crystalline β-amylase from sweet potatoes"
8:
1071:
1057:
1049:
719:
689:
675:
667:
315:by an inversion. Beta-amylase is found in
200:
38:
659:at the U.S. National Library of Medicine
618:
571:
449:
1346:
388:
29:
7:
542:Friedberg F, Rhodes C (March 1986).
591:"Sequence of an active fragment of
438:The Journal of Biological Chemistry
490:Advances in Carbohydrate Chemistry
25:
1349:
262:saccharogen amylase, glycogenase
953:Alpha-N-acetylgalactosaminidase
1:
965:Alpha-N-acetylglucosaminidase
564:10.1128/JB.165.3.819-824.1986
502:10.1016/s0096-5332(08)60139-3
451:10.1016/S0021-9258(18)35550-9
360:Glycoside hydrolase family 14
1388:
1227:Michaelis–Menten kinetics
331:) at a time. During the
199:
37:
1119:Diffusion-limited enzyme
661:Medical Subject Headings
283:the following reaction:
875:Bacterial neuraminidase
552:Journal of Bacteriology
1038:Oxoguanine glycosylase
599:Nucleic Acids Research
287:Hydrolysis of (1→4)-α-
277:-glucan maltohydrolase
1212:Eadie–Hofstee diagram
1145:Allosteric regulation
611:10.1093/nar/15.9.3934
1222:Lineweaver–Burk plot
1027:N-Glycosyl compounds
997:Maltase-glucoamylase
948:Galactosylceramidase
715:Glycoside hydrolases
700:: sugar hydrolases (
399:Molecular BioSystems
295:This enzyme acts on
880:Viral neuraminidase
1181:Enzyme superfamily
1114:Enzyme promiscuity
931:Glucosylceramidase
812:Debranching enzyme
736:Sucrase-isomaltase
411:10.1039/c0mb00204f
48:beta-amylase. PDB
1337:
1336:
1046:
1045:
1017:
1016:
904:alpha-Mannosidase
778:Alpha-glucosidase
546:Bacillus polymyxa
290:
276:
248:
247:
244:
243:
147:metabolic pathway
16:(Redirected from
1379:
1354:
1353:
1345:
1217:Hanes–Woolf plot
1160:Enzyme activator
1155:Enzyme inhibitor
1129:Enzyme catalysis
1073:
1066:
1059:
1050:
1034:DNA glycosylases
800:Beta-glucosidase
720:
691:
684:
677:
668:
632:
622:
585:
575:
528:
522:
516:
515:
485:
479:
478:
470:
464:
463:
453:
429:
423:
422:
393:
309:oligosaccharides
288:
274:
201:
53:
42:
30:
21:
1387:
1386:
1382:
1381:
1380:
1378:
1377:
1376:
1362:
1361:
1360:
1348:
1340:
1338:
1333:
1245:Oxidoreductases
1231:
1207:Enzyme kinetics
1195:
1191:List of enzymes
1164:
1133:
1104:Catalytic triad
1082:
1077:
1047:
1042:
1026:
1013:
816:
759:
705:
695:
653:
640:
635:
588:
541:
537:
535:Further reading
532:
531:
523:
519:
512:
487:
486:
482:
472:
471:
467:
431:
430:
426:
395:
394:
390:
385:
368:
356:digestive tract
311:producing beta-
305:polysaccharides
270:systematic name
54:
49:
28:
23:
22:
15:
12:
11:
5:
1385:
1383:
1375:
1374:
1364:
1363:
1359:
1358:
1335:
1334:
1332:
1331:
1318:
1305:
1292:
1279:
1266:
1253:
1239:
1237:
1233:
1232:
1230:
1229:
1224:
1219:
1214:
1209:
1203:
1201:
1197:
1196:
1194:
1193:
1188:
1183:
1178:
1172:
1170:
1169:Classification
1166:
1165:
1163:
1162:
1157:
1152:
1147:
1141:
1139:
1135:
1134:
1132:
1131:
1126:
1121:
1116:
1111:
1106:
1101:
1096:
1090:
1088:
1084:
1083:
1078:
1076:
1075:
1068:
1061:
1053:
1044:
1043:
1041:
1040:
1030:
1028:
1019:
1018:
1015:
1014:
1012:
1011:
1010:
1009:
999:
994:
989:
988:
987:
982:
975:Hexosaminidase
972:
967:
962:
961:
960:
950:
945:
944:
943:
938:
928:
923:
918:
917:
916:
906:
901:
900:
899:
894:
887:Galactosidases
884:
883:
882:
877:
872:
867:
862:
857:
847:
842:
837:
836:
835:
824:
822:
818:
817:
815:
814:
809:
808:
807:
797:
796:
795:
790:
785:
775:
769:
767:
761:
760:
758:
757:
752:
747:
742:
728:
726:
724:Disaccharidase
717:
707:
706:
696:
694:
693:
686:
679:
671:
665:
664:
652:
651:External links
649:
648:
647:
639:
638:External links
636:
634:
633:
586:
538:
536:
533:
530:
529:
517:
510:
480:
465:
424:
387:
386:
384:
381:
380:
379:
374:
367:
364:
293:
292:
246:
245:
242:
241:
236:
230:
229:
224:
218:
217:
212:
206:
205:
197:
196:
187:
181:
180:
169:
162:
161:
156:
150:
149:
144:
138:
137:
132:
126:
125:
120:
114:
113:
108:
102:
101:
96:
90:
89:
85:
84:
79:
73:
72:
67:
61:
60:
56:
55:
43:
35:
34:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
1384:
1373:
1370:
1369:
1367:
1357:
1352:
1347:
1343:
1329:
1325:
1324:
1319:
1316:
1312:
1311:
1306:
1303:
1299:
1298:
1293:
1290:
1286:
1285:
1280:
1277:
1273:
1272:
1267:
1264:
1260:
1259:
1254:
1251:
1247:
1246:
1241:
1240:
1238:
1234:
1228:
1225:
1223:
1220:
1218:
1215:
1213:
1210:
1208:
1205:
1204:
1202:
1198:
1192:
1189:
1187:
1186:Enzyme family
1184:
1182:
1179:
1177:
1174:
1173:
1171:
1167:
1161:
1158:
1156:
1153:
1151:
1150:Cooperativity
1148:
1146:
1143:
1142:
1140:
1136:
1130:
1127:
1125:
1122:
1120:
1117:
1115:
1112:
1110:
1109:Oxyanion hole
1107:
1105:
1102:
1100:
1097:
1095:
1092:
1091:
1089:
1085:
1081:
1074:
1069:
1067:
1062:
1060:
1055:
1054:
1051:
1039:
1035:
1032:
1031:
1029:
1025:: Hydrolysing
1024:
1020:
1008:
1005:
1004:
1003:
1000:
998:
995:
993:
990:
986:
983:
981:
978:
977:
976:
973:
971:
968:
966:
963:
959:
956:
955:
954:
951:
949:
946:
942:
941:non-lysosomal
939:
937:
934:
933:
932:
929:
927:
924:
922:
921:Hyaluronidase
919:
915:
912:
911:
910:
909:Glucuronidase
907:
905:
902:
898:
895:
893:
890:
889:
888:
885:
881:
878:
876:
873:
871:
868:
866:
863:
861:
858:
856:
853:
852:
851:
850:Neuraminidase
848:
846:
843:
841:
838:
834:
833:Alpha-amylase
831:
830:
829:
826:
825:
823:
819:
813:
810:
806:
803:
802:
801:
798:
794:
791:
789:
786:
784:
781:
780:
779:
776:
774:
771:
770:
768:
766:
762:
756:
753:
751:
748:
746:
743:
741:
737:
733:
730:
729:
727:
725:
721:
718:
716:
712:
708:
703:
699:
692:
687:
685:
680:
678:
673:
672:
669:
662:
658:
655:
654:
650:
645:
642:
641:
637:
630:
626:
621:
616:
612:
608:
604:
600:
596:
594:
587:
583:
579:
574:
569:
565:
561:
558:(3): 819–24.
557:
553:
549:
547:
540:
539:
534:
526:
521:
518:
513:
511:9780120072170
507:
503:
499:
495:
491:
484:
481:
476:
469:
466:
461:
457:
452:
447:
443:
439:
435:
428:
425:
420:
416:
412:
408:
405:(3): 718–30.
404:
400:
392:
389:
382:
378:
377:Alpha-amylase
375:
373:
370:
369:
365:
363:
361:
357:
353:
349:
345:
340:
338:
334:
330:
326:
322:
318:
314:
310:
306:
302:
298:
286:
285:
284:
282:
278:
271:
267:
263:
259:
256:
252:
240:
237:
235:
231:
228:
225:
223:
219:
216:
213:
211:
207:
202:
198:
195:
191:
188:
186:
185:Gene Ontology
182:
179:
176:
173:
170:
167:
163:
160:
157:
155:
151:
148:
145:
143:
139:
136:
133:
131:
127:
124:
123:NiceZyme view
121:
119:
115:
112:
109:
107:
103:
100:
97:
95:
91:
86:
83:
80:
78:
74:
71:
68:
66:
62:
57:
52:
47:
44:Structure of
41:
36:
31:
19:
1323:Translocases
1320:
1307:
1294:
1281:
1268:
1258:Transferases
1255:
1242:
1099:Binding site
765:Glucosidases
657:Beta-amylase
602:
598:
592:
555:
551:
545:
520:
493:
489:
483:
474:
468:
441:
437:
427:
402:
398:
391:
341:
303:and related
294:
272:
261:
250:
249:
111:BRENDA entry
18:Beta amylase
1094:Active site
992:Iduronidase
926:Pullulanase
605:(9): 3934.
593:B. polymyxa
496:: 371–430.
475:The Enzymes
444:(1): 9–19.
344:germination
99:IntEnz view
59:Identifiers
1297:Isomerases
1271:Hydrolases
1138:Regulation
1002:Heparanase
970:Fucosidase
788:Neutral AB
595:β amylase"
383:References
168:structures
135:KEGG entry
82:9000-91-3
1176:EC number
936:lysosomal
840:Chitinase
805:cytosolic
793:Neutral C
773:Cellulase
750:Trehalase
740:Invertase
698:Hydrolase
281:catalyses
268:with the
251:β-Amylase
88:Databases
33:β-amylase
1372:EC 3.2.1
1366:Category
1200:Kinetics
1124:Cofactor
1087:Activity
845:Lysozyme
460:18902365
419:21085740
366:See also
348:microbes
333:ripening
317:bacteria
301:glycogen
264:) is an
239:proteins
227:articles
215:articles
172:RCSB PDB
1356:Biology
1310:Ligases
1080:Enzymes
828:Amylase
755:Lactase
745:Maltase
732:Sucrase
629:2438660
582:2419310
372:Amylase
346:. Many
329:maltose
313:maltose
258:3.2.1.2
194:QuickGO
159:profile
142:MetaCyc
77:CAS no.
70:3.2.1.2
1342:Portal
1284:Lyases
914:Klotho
663:(MeSH)
627:
620:340808
617:
580:
573:214501
570:
508:
458:
417:
352:Animal
325:plants
323:, and
297:starch
266:enzyme
222:PubMed
204:Search
190:AmiGO
178:PDBsum
118:ExPASy
106:BRENDA
94:IntEnz
65:EC no.
46:barley
1236:Types
1023:3.2.2
1007:HPSE2
892:Alpha
821:Other
711:3.2.1
337:fruit
321:fungi
279:. It
154:PRIAM
1328:list
1321:EC7
1315:list
1308:EC6
1302:list
1295:EC5
1289:list
1282:EC4
1276:list
1269:EC3
1263:list
1256:EC2
1250:list
1243:EC1
985:HEXB
980:HEXA
958:NAGA
897:Beta
870:NEU4
865:NEU3
860:NEU2
855:NEU1
783:Acid
704:3.2)
625:PMID
578:PMID
506:ISBN
456:PMID
415:PMID
307:and
273:4-α-
234:NCBI
175:PDBe
130:KEGG
51:2xfr
615:PMC
607:doi
568:PMC
560:doi
556:165
498:doi
446:doi
442:173
407:doi
335:of
210:PMC
166:PDB
1368::
1036::
713::
702:EC
623:.
613:.
603:15
601:.
597:.
576:.
566:.
554:.
550:.
504:.
494:17
492:.
454:.
440:.
436:.
413:.
401:.
362:.
319:,
299:,
260:,
255:EC
192:/
1344::
1330:)
1326:(
1317:)
1313:(
1304:)
1300:(
1291:)
1287:(
1278:)
1274:(
1265:)
1261:(
1252:)
1248:(
1072:e
1065:t
1058:v
738:/
734:/
690:e
683:t
676:v
631:.
609::
584:.
562::
548:"
527:.
514:.
500::
462:.
448::
421:.
409::
403:7
289:D
275:D
253:(
20:)
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