0 10 Disruption disruption NN 11 13 of of IN 14 17 the the DT 18 23 human human JJ 24 27 SCL scl NN 28 33 locus locus NN 34 36 by by IN 37 38 “ `` `` 38 50 illegitimate illegitimate JJ 50 51 ” '' '' 52 59 V-(D)-J V-(D)-J NNP 60 71 recombinase recombinase NNP 72 80 activity activity NN 80 81 . . . 83 84 A a DT 85 91 fusion fusion NN 92 105 complementary complementary JJ 106 109 DNA dna NN 110 112 in in IN 113 116 the the DT 117 118 T t NN 119 123 cell cell NN 124 128 line line NN 129 134 HSB-2 hsb-2 NN 135 145 elucidates elucidate VBZ 146 147 a a DT 148 159 provocative provocative JJ 160 169 mechanism mechanism NN 170 173 for for IN 174 177 the the DT 178 188 disruption disruption NN 189 191 of of IN 192 195 the the DT 196 204 putative putative JJ 205 218 hematopoietic hematopoietic JJ 219 232 transcription transcription NN 233 239 factor factor NN 240 243 SCL SCL NNP 243 244 . . . 245 248 The the DT 249 255 fusion fusion NN 256 260 cDNA cdna NN 261 268 results result VBZ 269 273 from from IN 274 276 an an DT 277 289 interstitial interstitial JJ 290 298 deletion deletion NN 299 306 between between IN 307 308 a a DT 309 319 previously previously RB 320 327 unknown unknown JJ 328 333 locus locus NN 333 334 , , , 335 338 SIL SIL NNP 339 340 ( ( ( 340 343 SCL SCL NNP 344 356 interrupting interrupting NN 357 362 locus locus NN 362 363 ) ) ) 363 364 , , , 365 368 and and CC 369 372 the the DT 373 374 5 5 CD 374 375 ’ ' SYM 376 388 untranslated untranslated JJ 389 395 region region NN 396 398 of of IN 399 402 SCL SCL NNP 402 403 . . . 404 411 Similar similar JJ 412 414 to to TO 415 419 1;14 1;14 CD 420 434 translocations translocation NNS 434 435 , , , 436 440 this this DT 441 449 deletion deletion NN 450 458 disrupts disrupt VBZ 459 462 the the DT 463 466 SCL SCL NNP 467 468 5 5 CD 468 469 ’ ' SYM 470 480 regulatory regulatory JJ 481 487 region region NN 487 488 . . . 489 493 This this DT 494 499 event event NN 500 502 is be VBZ 503 511 probably probably RB 512 520 mediated mediate VBN 521 523 by by IN 524 531 V-(D)-J v-(d)-j JJ 532 543 recombinase recombinase NNP 544 552 activity activity NN 552 553 , , , 554 562 although although IN 563 570 neither neither DT 571 576 locus locus NN 577 579 is be VBZ 580 582 an an DT 583 597 immunoglobulin immunoglobulin NN 598 600 or or CC 601 602 a a DT 603 604 T t NN 605 609 cell cell NN 610 618 receptor receptor NN 618 619 . . . 620 623 Two two CD 624 629 other other JJ 630 631 T t NN 632 636 cell cell NN 637 642 lines line NNS 642 643 , , , 644 647 CEM CEM NNP 648 651 and and CC 652 656 RPMI RPMI NNP 657 661 8402 8402 CD 661 662 , , , 663 667 have have VBP 668 679 essentially essentially RB 680 689 identical identical JJ 690 699 deletions deletion NNS 699 700 . . . 701 705 Thus thus RB 705 706 , , , 707 709 in in IN 710 721 lymphocytes lymphocyte NNS 721 722 , , , 723 739 growth-affecting growth-affecting JJ 740 745 genes gene NNS 746 751 other other JJ 752 756 than than IN 757 763 immune immune JJ 764 773 receptors receptor NNS 774 778 risk risk NN 779 793 rearrangements rearrangement NNS 793 794 . . .