0 1 A a DT 2 6 role role NN 7 10 for for IN 11 17 RanBP1 ranbp1 NN 18 20 in in IN 21 24 the the DT 25 32 release release NN 33 35 of of IN 36 40 CRM1 crm1 NN 41 45 from from IN 46 49 the the DT 50 57 nuclear nuclear JJ 58 62 pore pore NN 63 70 complex complex NN 71 73 in in IN 74 75 a a DT 76 84 terminal terminal JJ 85 89 step step NN 90 92 of of IN 93 100 nuclear nuclear JJ 101 107 export export NN 107 108 . . . 110 112 We we PRP 113 121 recently recently RB 122 131 developed develop VBD 132 134 an an DT 135 140 assay assay NN 141 143 in in IN 144 149 which which WDT 150 157 nuclear nuclear JJ 158 164 export export NN 165 167 of of IN 168 171 the the DT 172 181 shuttling shuttle VBG 182 195 transcription transcription NN 196 202 factor factor NN 203 207 NFAT NFAT NNP 208 209 ( ( ( 209 216 nuclear nuclear JJ 217 223 factor factor NN 224 226 of of IN 227 236 activated activate VBN 237 238 T t NN 239 244 cells cell NNS 244 245 ) ) ) 246 249 can can MD 250 252 be be VB 253 266 reconstituted reconstitute VBN 267 269 in in IN 270 283 permeabilized permeabilized JJ 284 289 cells cell NNS 290 294 with with IN 295 298 the the DT 299 305 GTPase GTPase NNP 306 309 Ran Ran NNP 310 313 and and CC 314 317 the the DT 318 325 nuclear nuclear JJ 326 332 export export NN 333 341 receptor receptor NN 342 346 CRM1 crm1 NN 346 347 . . . 348 350 We we PRP 351 355 have have VBP 356 359 now now RB 360 364 used use VBN 365 369 this this DT 370 375 assay assay NN 376 378 to to TO 379 387 identify identify VB 388 395 another another DT 396 402 export export NN 403 409 factor factor NN 409 410 . . . 411 416 After after IN 417 430 preincubation preincubation NN 431 433 of of IN 434 447 permeabilized permeabilized JJ 448 453 cells cell NNS 454 458 with with IN 459 460 a a DT 461 464 Ran ran NN 465 471 mutant mutant NN 472 476 that that WDT 477 483 cannot cannot MD 484 493 hydrolyze hydrolyze VB 494 497 GTP GTP NNP 498 499 ( ( ( 499 506 RanQ69L RanQ69L NNP 506 507 ) ) ) 507 508 , , , 509 516 cytosol cytosol NN 517 525 supports support VBZ 526 530 NFAT nfat NN 531 537 export export NN 537 538 , , , 539 542 but but CC 543 547 CRM1 CRM1 NNP 548 551 and and CC 552 555 Ran Ran NNP 556 561 alone alone RB 562 564 do do VBP 565 568 not not RB 568 569 . . . 570 573 The the DT 574 581 RanQ69L RanQ69L NNP 582 595 preincubation preincubation NN 596 601 leads lead VBZ 602 604 to to TO 605 617 accumulation accumulation NN 618 620 of of IN 621 625 CRM1 crm1 NN 626 628 at at IN 629 632 the the DT 633 644 cytoplasmic cytoplasmic JJ 645 654 periphery periphery NN 655 657 of of IN 658 661 the the DT 662 669 nuclear nuclear JJ 670 674 pore pore NN 675 682 complex complex NN 683 684 ( ( ( 684 687 NPC NPC NNP 687 688 ) ) ) 689 691 in in IN 692 703 association association NN 704 708 with with IN 709 712 the the DT 713 716 p62 p62 NN 717 724 complex complex NN 725 728 and and CC 729 739 Can/Nup214 can/nup214 NN 739 740 . . . 741 757 RanGTP-dependent rangtp-dependent JJ 758 769 association association NN 770 772 of of IN 773 777 CRM1 crm1 NN 778 782 with with IN 783 788 these these DT 789 801 nucleoporins nucleoporin NNS 802 805 was be VBD 806 819 reconstituted reconstitute VBN 820 822 in in FW 823 828 vitro vitro FW 828 829 . . . 830 832 By by IN 833 844 biochemical biochemical JJ 845 858 fractionation fractionation NN 859 862 and and CC 863 877 reconstitution reconstitution NN 877 878 , , , 879 881 we we PRP 882 888 showed show VBD 889 893 that that IN 894 900 RanBP1 ranbp1 NN 901 909 restores restore VBZ 910 917 nuclear nuclear JJ 918 924 export export NN 925 930 after after IN 931 934 the the DT 935 942 RanQ69L RanQ69L NNP 943 956 preincubation preincubation NN 956 957 . . . 958 960 It it PRP 961 965 also also RB 966 976 stimulates stimulate VBZ 977 984 nuclear nuclear JJ 985 991 export export NN 992 994 in in IN 995 1000 cells cell NNS 1001 1005 that that WDT 1006 1010 have have VBP 1011 1014 not not RB 1015 1019 been be VBN 1020 1032 preincubated preincubate VBN 1033 1037 with with IN 1038 1046 RanQ69L. RanQ69L. NNP 1047 1053 RanBP1 RanBP1 NNP 1054 1056 as as RB 1057 1061 well well RB 1062 1064 as as IN 1065 1076 Ran-binding ran-binding JJ 1077 1084 domains domain NNS 1085 1087 of of IN 1088 1091 the the DT 1092 1103 cytoplasmic cytoplasmic JJ 1104 1115 nucleoporin nucleoporin NN 1116 1122 RanBP2 ranbp2 NN 1123 1130 promote promote VBP 1131 1134 the the DT 1135 1142 release release NN 1143 1145 of of IN 1146 1150 CRM1 crm1 NN 1151 1155 from from IN 1156 1159 the the DT 1160 1163 NPC NPC NNP 1163 1164 . . . 1165 1170 Taken take VBN 1171 1179 together together RB 1179 1180 , , , 1181 1184 our our PRP$ 1185 1192 results result NNS 1193 1201 indicate indicate VBP 1202 1206 that that IN 1207 1213 RanGTP RanGTP NNP 1214 1216 is be VBZ 1217 1226 important important JJ 1227 1230 for for IN 1231 1234 the the DT 1235 1244 targeting targeting NN 1245 1247 of of IN 1248 1254 export export NN 1255 1264 complexes complex NNS 1265 1267 to to TO 1268 1271 the the DT 1272 1283 cytoplasmic cytoplasmic JJ 1284 1288 side side NN 1289 1291 of of IN 1292 1295 the the DT 1296 1299 NPC NPC NNP 1300 1303 and and CC 1304 1308 that that IN 1309 1315 RanBP1 ranbp1 NN 1316 1319 and and CC 1320 1328 probably probably RB 1329 1335 RanBP2 ranbp2 NN 1336 1339 are be VBP 1340 1348 involved involve VBN 1349 1351 in in IN 1352 1355 the the DT 1356 1368 dissociation dissociation NN 1369 1371 of of IN 1372 1379 nuclear nuclear JJ 1380 1386 export export NN 1387 1396 complexes complex NNS 1397 1401 from from IN 1402 1405 the the DT 1406 1409 NPC NPC NNP 1410 1412 in in IN 1413 1414 a a DT 1415 1423 terminal terminal JJ 1424 1428 step step NN 1429 1431 of of IN 1432 1441 transport transport NN 1441 1442 . . .