0 9 Detection detection NN 10 12 in in IN 13 26 non-erythroid non-erythroid JJ 27 32 cells cell NNS 33 35 of of IN 36 37 a a DT 38 44 factor factor NN 45 49 with with IN 50 53 the the DT 54 61 binding binding NN 62 77 characteristics characteristic NNS 78 80 of of IN 81 84 the the DT 85 94 erythroid erythroid JJ 95 99 cell cell NN 100 113 transcription transcription NN 114 120 factor factor NN 121 124 EF1 ef1 NN 124 125 . . . 127 130 The the DT 131 140 erythroid erythroid JJ 141 154 transcription transcription NN 155 161 factor factor NN 162 171 erythroid erythroid JJ 172 180 factor-1 factor-1 NN 181 182 ( ( ( 182 185 EF1 ef1 NN 185 186 ) ) ) 187 192 plays play VBZ 193 194 a a DT 195 203 critical critical JJ 204 208 role role NN 209 211 in in IN 212 215 the the DT 216 229 transcription transcription NN 230 232 of of IN 233 251 erythroid-specific erythroid-specific JJ 252 257 genes gene NNS 257 258 . . . 259 263 Here here RB 264 266 we we PRP 267 273 report report VBP 274 277 the the DT 278 286 presence presence NN 287 289 of of IN 290 291 a a DT 292 298 factor factor NN 299 303 with with IN 304 307 the the DT 308 316 mobility mobility NN 317 320 and and CC 321 338 sequence-specific sequence-specific JJ 339 350 DNA-binding dna-binding JJ 351 366 characteristics characteristic NNS 367 369 of of IN 370 373 EF1 ef1 NN 374 376 at at IN 377 380 low low JJ 381 390 abundance abundance NN 391 393 in in IN 394 395 a a DT 396 400 wide wide JJ 401 408 variety variety NN 409 411 of of IN 412 425 non-erythroid non-erythroid JJ 426 430 cell cell NN 431 436 types type NNS 436 437 . . . 438 442 This this DT 443 445 is be VBZ 446 449 the the DT 450 455 first first JJ 456 462 report report NN 463 465 of of IN 466 468 an an DT 469 477 EF1-like ef1-like JJ 478 486 activity activity NN 487 489 in in IN 490 503 non-erythroid non-erythroid JJ 504 509 cells cell NNS 510 513 and and CC 514 523 indicates indicate VBZ 524 528 that that IN 529 533 this this DT 534 540 factor factor NN 541 544 may may MD 545 549 play play VB 550 551 a a DT 552 556 role role NN 557 559 in in IN 560 563 the the DT 564 574 regulation regulation NN 575 577 of of IN 578 583 genes gene NNS 584 593 expressed express VBN 594 596 in in IN 597 601 such such JJ 602 607 cells cell NNS 607 608 . . .