Knowledge

RecF pathway

Source 📝

843: 87:
displaces SSBP from the ssDNA, although SSBP remains attached to RecO. RecFOR then loads RecA onto a recessed 5' end of this ssDNA-dsDNA junction. The RecR subunit in RecFR then interacts with RecO to form the RecFOR complex. In doing so, the RecR subunit helps to both detach the SSBP molecules from RecO and load molecules of the RecA protein onto the 3' overhang.
86:
The RecA protein can be loaded onto the SSBP-coated 3' overhang in one of two distinct pathways, one that requires the RecFOR enzyme or one that requires the RecOR enzyme. In the RecFOR pathway, the RecFR complex binds where the single-strand DNA of the 3' meets the double-strand DNA. RecO then
247:
Kowalczykowski, SC; Clow, J; Somani, R; Varghese, A (5 January 1987). "Effects of the Escherichia coli SSB protein on the binding of Escherichia coli RecA protein to single-stranded DNA. Demonstration of competitive binding and the lack of a specific protein-protein interaction".
95:
of SSBP. The RecOR pathway also does not need a ssDNA-dsDNA junction to begin loading RecA onto the 3' overhang, whereas the RecFOR pathway typically does to work efficiently. Thus, the RecOR pathway in most conditions is more efficient than the RecFOR pathway in loading RecA.
78:
helicase greatly increase how much the 5' is cut back. When present, SSBP binds to the 3' overhang remaining after RecJ finishes cutting back the 5' strand. By binding to the single-stranded DNA, SSBP ensures that the 3' DNA overhang does not stick to itself through
90:
The RecOR pathway of RecA loading differs from the RecFOR pathway in several respects, most notably its molecular interaction requirements and its ideal DNA substrate. Unlike the RecFOR pathway, the RecOR pathway requires an interaction between RecO and the
43:. It repairs breaks that occur on only one of DNA's two strands, known as single-strand gaps. The RecF pathway can also repair double-strand breaks in DNA when the 70:
direction, binds to the 5' end of a single-strand gap in DNA and starts moving upstream while cleaving the 5' strand. Although RecJ can function without them,
776: 750: 47:, another pathway of homologous recombination in bacteria, is inactivated by mutations. Like the RecBCD pathway, the RecF pathway requires 411: 466: 80: 719: 650: 67: 734: 115:"RecFOR proteins load RecA protein onto gapped DNA to accelerate DNA strand exchange: a universal step of recombinational repair" 71: 709: 616: 341:"The process of displacing the single-stranded DNA-binding protein from single-stranded DNA by RecO and RecR proteins" 638: 462: 455: 633: 555: 404: 44: 32: 745: 655: 450: 511: 59:
slides in one direction, and resolution, in which the Holliday junctions are cleaved apart by enzymes.
436: 872: 846: 533: 397: 867: 729: 370: 321: 265: 229: 177: 136: 56: 28: 360: 352: 311: 301: 257: 219: 211: 167: 126: 52: 445: 365: 340: 316: 289: 224: 199: 200:"Reconstitution of initial steps of dsDNA break repair by the RecF pathway of E. coli" 131: 114: 861: 757: 578: 261: 724: 693: 643: 626: 526: 63: 660: 481: 428: 420: 172: 155: 92: 36: 374: 325: 306: 233: 181: 140: 51:
for strand invasion. The two pathways are also similar in their phases of
356: 269: 741: 40: 215: 688: 440: 198:
Handa, N; Morimatsu, K; Lovett, ST; Kowalczykowski, SC (15 May 2009).
813: 568: 521: 516: 339:
Inoue, H; Honda, M; Ikawa, S; Shibata, T; Mikawa, T (January 2008).
828: 823: 818: 808: 801: 796: 791: 786: 781: 771: 766: 621: 585: 506: 501: 496: 486: 714: 670: 665: 600: 595: 590: 563: 543: 538: 491: 75: 48: 393: 476: 471: 156:"DNA Repair: Common Approaches to Fixing Double-Strand Breaks" 389: 290:"RecFOR and RecOR as distinct RecA loading pathways" 702: 681: 609: 554: 427: 113:Morimatsu, K; Kowalczykowski, SC (22 May 2003). 405: 8: 193: 191: 412: 398: 390: 364: 315: 305: 223: 171: 130: 66:that cleaves single-stranded DNA in the 283: 281: 279: 105: 62:The RecF pathway begins when RecJ, an 288:Sakai, A; Cox, MM (30 January 2009). 7: 720:Proliferating Cell Nuclear Antigen 651:Microhomology-mediated end joining 14: 842: 841: 735:Meiotic recombination checkpoint 294:Journal of Biological Chemistry 250:Journal of Biological Chemistry 1: 132:10.1016/S1097-2765(03)00188-6 72:single-strand binding protein 617:Transcription-coupled repair 262:10.1016/0022-2836(87)90629-2 889: 639:Non-homologous end joining 463:Nucleotide excision repair 456:Poly ADP ribose polymerase 837: 173:10.1016/j.cub.2009.06.009 634:Homology directed repair 556:Homologous recombination 33:homologous recombination 204:Genes & Development 656:Postreplication repair 451:Uracil-DNA glycosylase 345:Nucleic Acids Research 307:10.1074/jbc.M807220200 154:Hiom, K (July 2009). 762:core protein complex 437:Base excision repair 534:DNA mismatch repair 357:10.1093/nar/gkm1004 216:10.1101/gad.1780709 23:, also called the 16:DNA repair pathway 855: 854: 730:Adaptive response 210:(10): 1234–1245. 166:(13): R523–R525. 57:Holliday junction 880: 845: 844: 414: 407: 400: 391: 379: 378: 368: 336: 330: 329: 319: 309: 300:(5): 3264–3272. 285: 274: 273: 244: 238: 237: 227: 195: 186: 185: 175: 151: 145: 144: 134: 125:(5): 1337–1347. 110: 53:branch migration 888: 887: 883: 882: 881: 879: 878: 877: 858: 857: 856: 851: 833: 703:Other/ungrouped 698: 677: 605: 550: 446:DNA glycosylase 429:Excision repair 423: 418: 388: 383: 382: 338: 337: 333: 287: 286: 277: 246: 245: 241: 197: 196: 189: 160:Current Biology 153: 152: 148: 112: 111: 107: 102: 81:complementation 74:(SSBP) and the 55:, in which the 17: 12: 11: 5: 886: 884: 876: 875: 870: 860: 859: 853: 852: 850: 849: 838: 835: 834: 832: 831: 826: 821: 816: 811: 806: 805: 804: 799: 794: 789: 784: 779: 774: 769: 754: 753: 748: 738: 737: 732: 727: 722: 717: 712: 706: 704: 700: 699: 697: 696: 691: 685: 683: 679: 678: 676: 675: 674: 673: 668: 658: 653: 648: 647: 646: 636: 631: 630: 629: 624: 613: 611: 610:Other pathways 607: 606: 604: 603: 598: 593: 588: 583: 582: 581: 571: 566: 560: 558: 552: 551: 549: 548: 547: 546: 541: 531: 530: 529: 524: 519: 514: 509: 504: 499: 494: 489: 484: 479: 474: 460: 459: 458: 453: 448: 433: 431: 425: 424: 419: 417: 416: 409: 402: 394: 387: 386:External links 384: 381: 380: 331: 275: 239: 187: 146: 119:Molecular Cell 104: 103: 101: 98: 45:RecBCD pathway 25:RecFOR pathway 15: 13: 10: 9: 6: 4: 3: 2: 885: 874: 871: 869: 866: 865: 863: 848: 840: 839: 836: 830: 827: 825: 822: 820: 817: 815: 812: 810: 807: 803: 800: 798: 795: 793: 790: 788: 785: 783: 780: 778: 775: 773: 770: 768: 765: 764: 763: 759: 758:FANC proteins 756: 755: 752: 749: 747: 743: 740: 739: 736: 733: 731: 728: 726: 723: 721: 718: 716: 713: 711: 708: 707: 705: 701: 695: 692: 690: 687: 686: 684: 680: 672: 669: 667: 664: 663: 662: 659: 657: 654: 652: 649: 645: 642: 641: 640: 637: 635: 632: 628: 625: 623: 620: 619: 618: 615: 614: 612: 608: 602: 599: 597: 594: 592: 589: 587: 584: 580: 579:RecQ helicase 577: 576: 575: 572: 570: 567: 565: 562: 561: 559: 557: 553: 545: 542: 540: 537: 536: 535: 532: 528: 525: 523: 520: 518: 515: 513: 510: 508: 505: 503: 500: 498: 495: 493: 490: 488: 485: 483: 480: 478: 475: 473: 470: 469: 468: 464: 461: 457: 454: 452: 449: 447: 444: 443: 442: 438: 435: 434: 432: 430: 426: 422: 415: 410: 408: 403: 401: 396: 395: 392: 385: 376: 372: 367: 362: 358: 354: 351:(1): 94–109. 350: 346: 342: 335: 332: 327: 323: 318: 313: 308: 303: 299: 295: 291: 284: 282: 280: 276: 271: 267: 263: 259: 255: 251: 243: 240: 235: 231: 226: 221: 217: 213: 209: 205: 201: 194: 192: 188: 183: 179: 174: 169: 165: 161: 157: 150: 147: 142: 138: 133: 128: 124: 120: 116: 109: 106: 99: 97: 94: 88: 84: 82: 77: 73: 69: 65: 60: 58: 54: 50: 46: 42: 38: 34: 30: 26: 22: 761: 742:DNA helicase 725:8-Oxoguanine 694:SOS response 574:RecF pathway 573: 527:Excinuclease 348: 344: 334: 297: 293: 256:(1): 81–95. 253: 249: 242: 207: 203: 163: 159: 149: 122: 118: 108: 89: 85: 61: 24: 21:RecF pathway 20: 18: 64:exonuclease 37:repairs DNA 873:DNA repair 862:Categories 682:Regulation 661:Photolyase 421:DNA repair 100:References 93:C-terminus 502:XPG/ERCC5 487:XPD/ERCC2 868:Genetics 847:Category 497:XPF/DDB1 492:XPE/DDB1 375:18000001 326:18986990 234:19451222 182:19602417 141:12769856 41:bacteria 689:SOS box 441:AP site 366:2248737 317:2631980 270:3295259 225:2685532 29:pathway 27:, is a 814:FANCD2 809:FANCD1 569:RecBCD 522:RAD23B 517:RAD23A 373:  363:  324:  314:  268:  232:  222:  180:  139:  68:5 → 3′ 829:FANCN 824:FANCJ 819:FANCI 802:FANCM 797:FANCL 792:FANCG 787:FANCF 782:FANCE 777:FANCC 772:FANCB 767:FANCA 627:ERCC8 622:ERCC6 586:RAD51 507:ERCC1 79:self- 35:that 715:PcrA 671:CRY2 666:CRY1 601:LexA 596:Slx4 591:Sgs1 564:RecA 544:MSH2 539:MLH1 467:ERCC 371:PMID 322:PMID 266:PMID 230:PMID 178:PMID 137:PMID 76:RecQ 49:RecA 19:The 751:WRN 746:BLM 710:Ogt 512:RPA 482:XPC 477:XPB 472:XPA 361:PMC 353:doi 312:PMC 302:doi 298:284 258:doi 254:193 220:PMC 212:doi 168:doi 127:doi 39:in 31:of 864:: 760:: 744:: 644:Ku 369:. 359:. 349:36 347:. 343:. 320:. 310:. 296:. 292:. 278:^ 264:. 252:. 228:. 218:. 208:23 206:. 202:. 190:^ 176:. 164:19 162:. 158:. 135:. 123:11 121:. 117:. 83:. 465:/ 439:/ 413:e 406:t 399:v 377:. 355:: 328:. 304:: 272:. 260:: 236:. 214:: 184:. 170:: 143:. 129::

Index

pathway
homologous recombination
repairs DNA
bacteria
RecBCD pathway
RecA
branch migration
Holliday junction
exonuclease
5 → 3′
single-strand binding protein
RecQ
complementation
C-terminus
"RecFOR proteins load RecA protein onto gapped DNA to accelerate DNA strand exchange: a universal step of recombinational repair"
doi
10.1016/S1097-2765(03)00188-6
PMID
12769856
"DNA Repair: Common Approaches to Fixing Double-Strand Breaks"
doi
10.1016/j.cub.2009.06.009
PMID
19602417


"Reconstitution of initial steps of dsDNA break repair by the RecF pathway of E. coli"
doi
10.1101/gad.1780709
PMC

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.