0 11 Association Association NNP 12 14 of of IN 15 18 the the DT 19 32 interleukin-4 interleukin-4 NN 33 41 receptor receptor NN 42 47 alpha alpha NN 48 53 chain chain NN 54 58 with with IN 59 66 p47phox p47phox NN 66 67 , , , 68 70 an an DT 71 80 activator activator NN 81 83 of of IN 84 87 the the DT 88 97 phagocyte phagocyte NN 98 103 NADPH nadph NN 104 111 oxidase oxidase NN 112 114 in in IN 115 116 B B NNP 117 122 cells cell NNS 122 123 . . . 125 136 Interleukin Interleukin NNP 137 138 ( ( ( 138 143 IL)-4 il)-4 NN 144 149 plays play VBZ 150 152 an an DT 153 162 important important JJ 163 167 role role NN 168 170 in in IN 171 174 IgE ige NN 175 184 synthesis synthesis NN 185 187 in in IN 188 189 B B NNP 190 195 cells cell NNS 196 199 and and CC 200 202 in in IN 203 206 Th2 th2 NN 207 222 differentiation differentiation NN 223 225 in in IN 226 227 T t NN 228 233 cells cell NNS 233 234 . . . 235 239 IL-4 il-4 NN 240 248 conducts conduct VBZ 249 252 its its PRP$ 253 263 biological biological JJ 264 274 activities activity NNS 275 282 through through IN 283 290 binding bind VBG 291 293 to to TO 294 297 the the DT 298 302 IL-4 il-4 NN 303 311 receptor receptor NN 312 313 ( ( ( 313 318 IL-4R IL-4R NNP 318 319 ) ) ) 320 322 on on IN 323 326 the the DT 327 334 surface surface NN 335 337 of of IN 338 344 target target NN 345 350 cells cell NNS 350 351 . . . 352 357 IL-4R IL-4R NNP 358 361 are be VBP 362 369 thought think VBN 370 372 to to TO 373 375 be be VB 376 384 composed compose VBN 385 387 of of IN 388 391 the the DT 392 397 IL-4R IL-4R NNP 398 403 alpha alpha NN 404 409 chain chain NN 410 411 ( ( ( 411 416 IL-4R IL-4R NNP 417 422 alpha alpha NN 422 423 ) ) ) 424 427 and and CC 428 434 either either CC 435 438 the the DT 439 444 IL-2R IL-2R NNP 445 450 gamma gamma NN 451 456 chain chain NN 457 459 or or CC 460 463 the the DT 464 470 IL-13R IL-13R NNP 471 476 alpha alpha NN 477 482 chain chain NN 482 483 . . . 484 486 We we PRP 487 491 have have VBP 492 502 previously previously RB 503 508 shown show VBN 509 513 that that IN 514 517 the the DT 518 535 membrane-proximal membrane-proximal JJ 536 543 portion portion NN 544 546 in in IN 547 550 the the DT 551 562 cytoplasmic cytoplasmic JJ 563 569 domain domain NN 570 572 of of IN 573 576 the the DT 577 582 human human JJ 583 588 IL-4R il-4r NN 589 594 alpha alpha NN 595 596 ( ( ( 596 602 hIL-4R hIL-4R NNP 603 608 alpha alpha NN 608 609 ) ) ) 610 612 is be VBZ 613 621 critical critical JJ 622 625 for for IN 626 639 proliferation proliferation NN 639 640 , , , 641 651 generation generation NN 652 654 of of IN 655 663 germline germline NN 664 671 epsilon epsilon NN 672 682 transcript transcript NN 682 683 , , , 684 687 and and CC 688 698 activation activation NN 699 701 of of IN 702 707 STAT6 STAT6 NNP 707 708 , , , 709 714 based base VBN 715 717 on on IN 718 726 analyses analysis NNS 727 729 of of IN 730 739 truncated truncate VBN 740 746 hIL-4R hIL-4R NNP 747 753 alphas alpha NNS 753 754 . . . 755 757 In in IN 758 762 this this DT 763 768 study study NN 768 769 , , , 770 772 we we PRP 773 778 found find VBD 779 783 that that IN 784 791 p47phox p47phox NN 791 792 , , , 793 795 an an DT 796 805 activator activator NN 806 808 of of IN 809 812 the the DT 813 822 phagocyte phagocyte NN 823 828 NADPH nadph NN 829 836 oxidase oxidase NN 836 837 , , , 838 843 binds bind VBZ 844 846 to to TO 847 851 this this DT 852 859 portion portion NN 860 862 by by IN 863 866 the the DT 867 877 two-hybrid two-hybrid JJ 878 884 system system NN 884 885 . . . 886 897 Furthermore furthermore RB 897 898 , , , 899 901 we we PRP 902 910 observed observe VBD 911 914 the the DT 915 926 association association NN 927 929 of of IN 930 937 p47phox p47phox NN 938 942 with with IN 943 946 the the DT 947 953 hIL-4R hIL-4R NNP 954 959 alpha alpha NN 960 962 in in IN 963 964 B B NNP 965 970 cells cell NNS 971 978 derived derive VBN 979 983 from from IN 984 985 a a DT 986 992 normal normal JJ 993 998 donor donor NN 998 999 . . . 1000 1005 These these DT 1006 1013 results result NNS 1014 1021 suggest suggest VBP 1022 1026 that that IN 1027 1034 p47phox p47phox NN 1035 1037 is be VBZ 1038 1046 involved involve VBN 1047 1049 in in IN 1050 1053 the the DT 1054 1060 signal signal NN 1061 1073 transduction transduction NN 1074 1076 of of IN 1077 1081 IL-4 il-4 NN 1082 1084 in in IN 1085 1086 B B NNP 1087 1092 cells cell NNS 1092 1093 . . . 1094 1101 However however RB 1101 1102 , , , 1103 1113 activation activation NN 1114 1116 of of IN 1117 1122 STAT6 STAT6 NNP 1122 1123 , , , 1124 1128 CD23 cd23 NN 1129 1139 expression expression NN 1139 1140 , , , 1141 1144 and and CC 1145 1148 IgE IgE NNP 1149 1158 synthesis synthesis NN 1159 1166 induced induce VBN 1167 1169 by by IN 1170 1174 IL-4 il-4 NN 1175 1179 were be VBD 1180 1183 not not RB 1184 1192 affected affect VBN 1193 1195 in in IN 1196 1213 p47phox-deficient p47phox-deficient JJ 1214 1222 patients patient NNS 1222 1223 , , , 1224 1229 which which WDT 1230 1236 raises raise VBZ 1237 1240 the the DT 1241 1252 possibility possibility NN 1253 1257 that that IN 1258 1265 p47phox p47phox NN 1266 1269 may may MD 1270 1272 be be VB 1273 1282 important important JJ 1283 1285 in in IN 1286 1291 other other JJ 1292 1301 signaling signaling NN 1302 1312 activities activity NNS 1313 1315 as as RB 1316 1320 well well RB 1321 1323 in in IN 1324 1325 B B NNP 1326 1331 cells cell NNS 1331 1332 . . .