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Ligase

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The naming of ligases is inconsistent and so these enzymes are commonly known by several different names. Generally, the common names of ligases include the word "ligase", such as in
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can join two complementary fragments of nucleic acid by forming phosphodiester bonds, and repair single stranded breaks that arise in double stranded DNA during replication.
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of a small pendant chemical group on one of the molecules, typically resulting in the formation of new C-O, C-S, or C-N bonds. For example,
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new molecules. There are also some ligases that use the name "carboxylase" to indicate that the enzyme specifically catalyzes a
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fragments. However, many common names use the term "synthetase" or "synthase" instead, because they are used to
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In general, a ligase catalyzes the following dehydration reaction, thus joining molecules A and B:
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classification of enzymes. Ligases can be further classified into six subclasses:
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To note: biochemical nomenclature has sometimes distinguished synthetases from
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This article is about general ligases. For DNA specific ligases, see
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includes ligases used to form carbon-nitrogen bonds (including
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includes ligases used to form nitrogen-metal bonds, as in the
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includes ligases used to form carbon-carbon bonds, such as
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Class of enzymes that can form bonds between molecules
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This is typically via 1061:Acetyl-CoA carboxylase 934:Glutathione synthetase 282:Acetyl-CoA carboxylase 211:, for example certain 167:acetyl-CoA carboxylase 964:Asparagine synthetase 868:Acetyl—CoA synthetase 552:Eadie–Hofstee diagram 485:Allosteric regulation 1056:Pyruvate carboxylase 892:Glutamine synthetase 562:Lineweaver–Burk plot 201:biological membranes 77:A-OH + B-H → A–B + H 1174:Magnesium chelatase 1087:Polyketide synthase 370:Membranome database 346:www.axonmedchem.com 209:transmembrane helix 1148:: Phosphoric Ester 521:Enzyme superfamily 454:Enzyme promiscuity 215:related proteins. 1187: 1186: 1095: 1094: 994: 993: 885:: Carbon-Nitrogen 677: 676: 380:EC 6 Introduction 97:to join together 16:(Redirected from 1229: 1204: 1203: 1195: 1179:Cobalt chelatase 1167:: Nitrogen-Metal 1122: 1115: 1108: 1099: 1021: 1014: 1007: 998: 897:Ubiquitin ligase 704: 697: 690: 681: 557:Hanes–Woolf plot 500:Enzyme activator 495:Enzyme inhibitor 469:Enzyme catalysis 413: 406: 399: 390: 372: 363: 357: 356: 354: 352: 338: 332: 331: 329: 327: 313: 297:Ubiquitin ligase 271: 269:Chemistry portal 266: 265: 264: 213:ubiquitin ligase 176:phosphoric ester 21: 1237: 1236: 1232: 1231: 1230: 1228: 1227: 1226: 1212: 1211: 1210: 1198: 1190: 1188: 1183: 1159: 1140: 1126: 1096: 1091: 1075: 1038: 1025: 995: 990: 877: 856:: Carbon-Sulfur 848: 730:: Carbon-Oxygen 722: 713:: CO CS and CN 708: 678: 673: 585:Oxidoreductases 571: 547:Enzyme kinetics 535: 531:List of enzymes 504: 473: 444:Catalytic triad 422: 417: 376: 375: 364: 360: 350: 348: 340: 339: 335: 325: 323: 317:"IntEnz - EC 6" 315: 314: 310: 305: 267: 262: 260: 257: 229:combining forms 221: 197: 178:bonds, such as 126: 87: 80: 35: 28: 23: 22: 15: 12: 11: 5: 1235: 1233: 1225: 1224: 1214: 1213: 1209: 1208: 1185: 1184: 1182: 1181: 1176: 1170: 1168: 1161: 1160: 1158: 1157: 1151: 1149: 1142: 1141: 1127: 1125: 1124: 1117: 1110: 1102: 1093: 1092: 1090: 1089: 1083: 1081: 1077: 1076: 1074: 1073: 1068: 1063: 1058: 1052: 1050: 1040: 1039: 1026: 1024: 1023: 1016: 1009: 1001: 992: 991: 989: 988: 983: 982: 981: 976: 966: 961: 956: 951: 946: 941: 939:CTP synthetase 936: 931: 930: 929: 924: 919: 914: 909: 904: 894: 888: 886: 879: 878: 876: 875: 870: 865: 859: 857: 850: 849: 847: 846: 845: 844: 839: 834: 829: 824: 819: 814: 809: 804: 799: 794: 789: 784: 779: 774: 769: 764: 759: 754: 749: 744: 733: 731: 724: 723: 709: 707: 706: 699: 692: 684: 675: 674: 672: 671: 658: 645: 632: 619: 606: 593: 579: 577: 573: 572: 570: 569: 564: 559: 554: 549: 543: 541: 537: 536: 534: 533: 528: 523: 518: 512: 510: 509:Classification 506: 505: 503: 502: 497: 492: 487: 481: 479: 475: 474: 472: 471: 466: 461: 456: 451: 446: 441: 436: 430: 428: 424: 423: 418: 416: 415: 408: 401: 393: 387: 386: 374: 373: 358: 333: 307: 306: 304: 301: 300: 299: 294: 289: 284: 279: 273: 272: 256: 253: 220: 217: 196: 193: 192: 191: 182: 169: 160: 150: 144: 125: 124:Classification 122: 86: 83: 78: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 1234: 1223: 1220: 1219: 1217: 1207: 1202: 1197: 1193: 1180: 1177: 1175: 1172: 1171: 1169: 1166: 1162: 1156: 1153: 1152: 1150: 1147: 1143: 1138: 1134: 1130: 1123: 1118: 1116: 1111: 1109: 1104: 1103: 1100: 1088: 1085: 1084: 1082: 1078: 1072: 1069: 1067: 1064: 1062: 1059: 1057: 1054: 1053: 1051: 1049: 1048:carboxylation 1045: 1041: 1036: 1033: 1029: 1022: 1017: 1015: 1010: 1008: 1003: 1002: 999: 987: 984: 980: 977: 975: 972: 971: 970: 967: 965: 962: 960: 957: 955: 952: 950: 947: 945: 942: 940: 937: 935: 932: 928: 925: 923: 920: 918: 915: 913: 910: 908: 905: 903: 900: 899: 898: 895: 893: 890: 889: 887: 884: 880: 874: 871: 869: 866: 864: 861: 860: 858: 855: 851: 843: 840: 838: 835: 833: 830: 828: 825: 823: 820: 818: 815: 813: 812:Phenylalanine 810: 808: 805: 803: 800: 798: 795: 793: 790: 788: 785: 783: 780: 778: 775: 773: 770: 768: 765: 763: 760: 758: 755: 753: 750: 748: 745: 743: 740: 739: 738: 735: 734: 732: 729: 725: 720: 716: 712: 705: 700: 698: 693: 691: 686: 685: 682: 669: 665: 664: 659: 656: 652: 651: 646: 643: 639: 638: 633: 630: 626: 625: 620: 617: 613: 612: 607: 604: 600: 599: 594: 591: 587: 586: 581: 580: 578: 574: 568: 565: 563: 560: 558: 555: 553: 550: 548: 545: 544: 542: 538: 532: 529: 527: 526:Enzyme family 524: 522: 519: 517: 514: 513: 511: 507: 501: 498: 496: 493: 491: 490:Cooperativity 488: 486: 483: 482: 480: 476: 470: 467: 465: 462: 460: 457: 455: 452: 450: 449:Oxyanion hole 447: 445: 442: 440: 437: 435: 432: 431: 429: 425: 421: 414: 409: 407: 402: 400: 395: 394: 391: 385: 381: 378: 377: 371: 367: 362: 359: 347: 343: 337: 334: 322: 321:www.ebi.ac.uk 318: 312: 309: 302: 298: 295: 293: 290: 288: 285: 283: 280: 278: 275: 274: 270: 259: 254: 252: 250: 249: 244: 240: 236: 235: 230: 226: 218: 216: 214: 210: 206: 202: 194: 190: 186: 183: 181: 177: 173: 170: 168: 164: 161: 158: 154: 151: 148: 145: 142: 139: 138: 137: 135: 131: 123: 121: 119: 115: 110: 108: 107:carboxylation 104: 100: 96: 92: 84: 82: 75: 72: 70: 66: 62: 61:chemical bond 58: 55:the joining ( 54: 50: 46: 42: 37: 33: 19: 1132: 1027: 959:GMP synthase 714: 663:Translocases 660: 649: 647: 634: 621: 608: 598:Transferases 595: 582: 439:Binding site 361: 349:. 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Retrieved 320: 311: 246: 242: 232: 224: 222: 198: 129: 127: 111: 95:laboratories 88: 85:Nomenclature 76: 73: 44: 41:biochemistry 38: 36: 434:Active site 1155:DNA ligase 1046:dependent 832:Tryptophan 807:Methionine 792:Isoleucine 752:Asparagine 637:Isomerases 611:Hydrolases 478:Regulation 303:References 277:DNA ligase 237:(from the 189:chelatases 180:DNA ligase 109:reaction. 103:synthesize 91:DNA ligase 69:DNA ligase 65:hydrolysis 32:DNA ligase 18:Synthetase 827:Threonine 787:Histidine 777:Glutamine 772:Glutamate 757:Aspartate 516:EC number 223:The word 134:EC number 114:synthases 51:that can 1216:Category 1139:6.5-6.6) 837:Tyrosine 762:Cysteine 747:Arginine 721:6.1-6.3) 540:Kinetics 464:Cofactor 427:Activity 292:Protease 287:Nuclease 255:See also 118:synonyms 57:ligation 53:catalyze 1222:Ligases 1206:Biology 1133:ligases 1129:Enzymes 1028:Ligases 817:Proline 797:Leucine 782:Glycine 742:Alanine 715:ligases 711:Enzymes 650:Ligases 420:Enzymes 132:in the 1192:Portal 1044:Biotin 902:Cullin 842:Valine 822:Serine 802:Lysine 624:Lyases 351:May 2, 326:May 2, 243:ligāre 225:ligase 185:EC 6.6 172:EC 6.5 163:EC 6.4 153:EC 6.3 147:EC 6.2 141:EC 6.1 49:enzyme 47:is an 45:ligase 1080:Other 912:UBE3A 576:Types 241:verb 239:Latin 227:uses 927:UBR1 917:Mdm2 668:list 661:EC7 655:list 648:EC6 642:list 635:EC5 629:list 622:EC4 616:list 609:EC3 603:list 596:EC2 590:list 583:EC1 353:2023 328:2023 248:-ase 234:lig- 130:EC 6 43:, a 1165:6.6 1146:6.5 1035:6.4 883:6.3 854:6.2 728:6.1 368:in 231:of 203:as 99:DNA 39:In 1218:: 1137:EC 1032:EC 979:II 719:EC 344:. 319:. 81:O 1194:: 1135:( 1121:e 1114:t 1107:v 1037:) 1020:e 1013:t 1006:v 974:I 717:( 703:e 696:t 689:v 670:) 666:( 657:) 653:( 644:) 640:( 631:) 627:( 618:) 614:( 605:) 601:( 592:) 588:( 412:e 405:t 398:v 355:. 330:. 159:) 79:2 34:. 20:)

Index

Synthetase
DNA ligase
biochemistry
enzyme
catalyze
ligation
chemical bond
hydrolysis
DNA ligase
DNA ligase
laboratories
DNA
synthesize
carboxylation
synthases
synonyms
EC number
EC 6.1
EC 6.2
EC 6.3
argininosuccinate synthetase
EC 6.4
acetyl-CoA carboxylase
EC 6.5
phosphoric ester
DNA ligase
EC 6.6
chelatases
biological membranes
peripheral membrane proteins

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