HEADER SPLICING 20-DEC-16 5MQF TITLE Cryo-EM structure of a human spliceosome activated for step 2 of TITLE 2 splicing (C* complex) COMPND MOL_ID: 18; COMPND 2 MOLECULE: Intron-binding protein aquarius; COMPND 3 CHAIN: U; EXPDTA ELECTRON MICROSCOPY DBREF 5MQF U 1 1485 UNP O60306 AQR_HUMAN 1 1485 MODRES 5MQF MSE U 65 MET modified residue MODRES 5MQF MSE U 79 MET modified residue MODRES 5MQF MSE U 92 MET modified residue MODRES 5MQF MSE U 97 MET modified residue MODRES 5MQF MSE U 174 MET modified residue MODRES 5MQF MSE U 176 MET modified residue MODRES 5MQF MSE U 207 MET modified residue MODRES 5MQF MSE U 244 MET modified residue MODRES 5MQF MSE U 257 MET modified residue MODRES 5MQF MSE U 304 MET modified residue MODRES 5MQF MSE U 326 MET modified residue MODRES 5MQF MSE U 424 MET modified residue MODRES 5MQF MSE U 492 MET modified residue MODRES 5MQF MSE U 510 MET modified residue MODRES 5MQF MSE U 600 MET modified residue MODRES 5MQF MSE U 638 MET modified residue MODRES 5MQF MSE U 657 MET modified residue MODRES 5MQF MSE U 677 MET modified residue MODRES 5MQF MSE U 705 MET modified residue MODRES 5MQF MSE U 814 MET modified residue MODRES 5MQF MSE U 820 MET modified residue MODRES 5MQF MSE U 867 MET modified residue MODRES 5MQF MSE U 941 MET modified residue MODRES 5MQF MSE U 991 MET modified residue MODRES 5MQF MSE U 1037 MET modified residue MODRES 5MQF MSE U 1061 MET modified residue MODRES 5MQF MSE U 1093 MET modified residue MODRES 5MQF MSE U 1107 MET modified residue MODRES 5MQF MSE U 1115 MET modified residue MODRES 5MQF MSE U 1212 MET modified residue MODRES 5MQF MSE U 1214 MET modified residue MODRES 5MQF MSE U 1294 MET modified residue SEQRES 1 U 199 ALA GLN GLY ARG ALA ARG ALA SER LEU CYS ASN LEU TYR SEQRES 2 U 199 ASN TRP ARG TYR LYS ASN LEU GLY ASN LEU PRO HIS VAL SEQRES 3 U 199 GLN LEU LEU PRO GLU PHE SER THR ALA ASN ALA GLY LEU SEQRES 4 U 199 LEU TYR ASP PHE GLN LEU ILE ASN VAL GLU ASP PHE GLN SEQRES 5 U 199 GLY VAL GLY GLU SER GLU PRO ASN PRO TYR PHE TYR GLN SEQRES 6 U 199 ASN LEU GLY GLU ALA GLU TYR VAL VAL ALA LEU PHE MET SEQRES 7 U 199 TYR MET CYS LEU LEU GLY TYR PRO ALA ASP LYS ILE SER SEQRES 8 U 199 ILE LEU THR THR TYR ASN GLY GLN LYS HIS LEU ILE ARG SEQRES 9 U 199 ASP ILE ILE ASN ARG ARG CYS GLY ASN ASN PRO LEU ILE SEQRES 10 U 199 GLY ARG PRO ASN LYS VAL THR THR VAL ASP ARG PHE GLN SEQRES 11 U 199 GLY GLN GLN ASN ASP TYR ILE LEU LEU SER LEU VAL ARG SEQRES 12 U 199 THR ARG ALA VAL GLY HIS LEU ARG ASP VAL ARG ARG LEU SEQRES 13 U 199 VAL VAL ALA MET SER ARG ALA ARG LEU GLY LEU TYR ILE SEQRES 14 U 199 PHE ALA ARG VAL SER LEU PHE GLN ASN CYS PHE GLU LEU SEQRES 15 U 199 THR PRO ALA PHE SER GLN LEU THR ALA ARG PRO LEU HIS SEQRES 16 U 199 LEU HIS ILE ILE ATOM 1 CA ALA U1135 422.593 207.975 297.530 1.00 50.00 ATOM 2 CA GLN U1136 419.502 206.885 299.460 1.00 50.00 ATOM 3 CA GLY U1137 419.029 207.440 303.187 1.00 50.00 ATOM 4 CA ARG U1138 415.894 205.692 304.450 1.00 50.00 ATOM 5 CA ALA U1139 416.470 201.930 304.126 1.00 50.00 ATOM 6 CA ARG U1140 419.047 199.185 304.746 1.00 50.00 ATOM 7 CA ALA U1141 421.717 198.792 302.081 1.00 50.00 ATOM 8 CA SER U1142 420.633 195.150 301.829 1.00 50.00 ATOM 9 CA LEU U1143 417.074 196.168 300.954 1.00 50.00 ATOM 10 CA CYS U1144 418.338 198.854 298.562 1.00 50.00 ATOM 11 CA ASN U1145 419.966 196.128 296.453 1.00 50.00 ATOM 12 CA LEU U1146 416.512 194.822 295.569 1.00 50.00 ATOM 13 CA TYR U1147 415.935 197.914 293.424 1.00 50.00 ATOM 14 CA ASN U1148 419.186 199.875 292.963 1.00 50.00 ATOM 15 CA TRP U1149 420.018 197.733 289.919 1.00 50.00 ATOM 16 CA ARG U1150 417.366 199.732 288.076 1.00 50.00 ATOM 17 CA TYR U1151 419.157 203.051 288.513 1.00 50.00 ATOM 18 CA LYS U1152 422.414 204.722 287.510 1.00 50.00 ATOM 19 CA ASN U1153 424.942 204.152 290.295 1.00 50.00 ATOM 20 CA LEU U1154 422.417 204.198 293.157 1.00 50.00 ATOM 21 CA GLY U1155 424.281 203.620 296.415 1.00 50.00 ATOM 22 CA ASN U1156 423.729 204.603 300.038 1.00 50.00 ATOM 23 CA LEU U1157 424.327 207.645 302.232 1.00 50.00 ATOM 24 CA PRO U1158 426.868 207.385 305.109 1.00 50.00 ATOM 25 CA HIS U1159 424.287 207.221 307.930 1.00 50.00 ATOM 26 CA VAL U1160 422.648 204.232 306.231 1.00 50.00 ATOM 27 CA GLN U1161 426.081 202.616 305.938 1.00 50.00 ATOM 28 CA LEU U1162 427.221 203.371 309.481 1.00 50.00 ATOM 29 CA LEU U1163 424.338 203.868 311.945 1.00 50.00 ATOM 30 CA PRO U1164 423.544 200.870 314.210 1.00 50.00 ATOM 31 CA GLU U1165 419.807 201.093 313.454 1.00 50.00 ATOM 32 CA PHE U1166 420.442 199.807 309.926 1.00 50.00 ATOM 33 CA SER U1167 422.648 196.890 310.993 1.00 50.00 ATOM 34 CA THR U1168 420.393 195.615 313.790 1.00 50.00 ATOM 35 CA ALA U1169 418.547 192.426 312.840 1.00 50.00 ATOM 36 CA ASN U1170 414.780 191.923 312.980 1.00 50.00 ATOM 37 CA ALA U1171 413.851 189.946 316.103 1.00 50.00 ATOM 38 CA GLY U1172 412.643 186.383 315.599 1.00 50.00 ATOM 39 CA LEU U1173 413.627 186.405 311.930 1.00 50.00 ATOM 40 CA LEU U1174 417.038 185.217 310.734 1.00 50.00 ATOM 41 CA TYR U1175 417.013 187.293 307.532 1.00 50.00 ATOM 42 CA ASP U1176 416.125 190.972 307.117 1.00 50.00 ATOM 43 CA PHE U1177 414.350 189.964 303.920 1.00 50.00 ATOM 44 CA GLN U1178 413.002 186.729 302.475 1.00 50.00 ATOM 45 CA LEU U1179 411.054 185.499 299.489 1.00 50.00 ATOM 46 CA ILE U1180 408.764 182.750 300.760 1.00 50.00 ATOM 47 CA ASN U1181 407.431 180.047 298.457 1.00 50.00 ATOM 48 CA VAL U1182 403.757 179.290 299.006 1.00 50.00 ATOM 49 CA GLU U1183 402.366 176.224 297.247 1.00 50.00 ATOM 50 CA ASP U1184 398.709 175.215 297.039 1.00 50.00 ATOM 51 CA PHE U1185 396.378 175.234 300.025 1.00 50.00 ATOM 52 CA GLN U1186 393.556 172.686 299.850 1.00 50.00 ATOM 53 CA GLY U1187 394.160 172.250 296.126 1.00 50.00 ATOM 54 CA VAL U1188 393.900 175.973 295.420 1.00 50.00 ATOM 55 CA GLY U1189 396.521 178.582 294.591 1.00 50.00 ATOM 56 CA GLU U1190 395.169 181.845 293.228 1.00 50.00 ATOM 57 CA SER U1191 391.389 182.204 293.359 1.00 50.00 ATOM 58 CA GLU U1192 388.782 184.568 291.946 1.00 50.00 ATOM 59 CA PRO U1193 385.547 184.675 294.028 1.00 50.00 ATOM 60 CA ASN U1194 384.498 187.567 291.815 1.00 50.00 ATOM 61 CA PRO U1195 385.881 188.228 288.313 1.00 50.00 ATOM 62 CA TYR U1196 389.353 189.850 288.527 1.00 50.00 ATOM 63 CA PHE U1197 389.112 189.966 292.333 1.00 50.00 ATOM 64 CA TYR U1198 392.321 187.933 292.643 1.00 50.00 ATOM 65 CA GLN U1199 393.134 186.303 295.985 1.00 50.00 ATOM 66 CA ASN U1200 395.395 183.630 297.478 1.00 50.00 ATOM 67 CA LEU U1201 394.216 182.058 300.741 1.00 50.00 ATOM 68 CA GLY U1202 397.494 180.226 301.290 1.00 50.00 ATOM 69 CA GLU U1203 399.484 183.441 300.987 1.00 50.00 ATOM 70 CA ALA U1204 397.005 185.569 302.941 1.00 50.00 ATOM 71 CA GLU U1205 396.851 183.164 305.895 1.00 50.00 ATOM 72 CA TYR U1206 400.656 182.912 305.916 1.00 50.00 ATOM 73 CA VAL U1207 401.066 186.703 305.886 1.00 50.00 ATOM 74 CA VAL U1208 398.580 187.212 308.720 1.00 50.00 ATOM 75 CA ALA U1209 400.225 184.387 310.667 1.00 50.00 ATOM 76 CA LEU U1210 403.602 186.096 310.286 1.00 50.00 ATOM 77 CA PHE U1211 402.087 189.392 311.429 1.00 50.00 ATOM 78 CA MSE U1212 400.684 187.596 314.479 1.00 50.00 ATOM 79 CA TYR U1213 404.035 185.912 315.114 1.00 50.00 ATOM 80 CA MSE U1214 405.723 189.314 315.144 1.00 50.00 ATOM 81 CA CYS U1215 403.092 190.857 317.434 1.00 50.00 ATOM 82 CA LEU U1216 403.490 187.924 319.836 1.00 50.00 ATOM 83 CA LEU U1217 407.239 188.578 319.801 1.00 50.00 ATOM 84 CA GLY U1218 406.558 192.146 320.887 1.00 50.00 ATOM 85 CA TYR U1219 406.865 193.998 317.579 1.00 50.00 ATOM 86 CA PRO U1220 405.203 197.400 317.400 1.00 50.00 ATOM 87 CA ALA U1221 402.178 196.382 315.308 1.00 50.00 ATOM 88 CA ASP U1222 401.998 199.923 313.920 1.00 50.00 ATOM 89 CA LYS U1223 405.531 199.579 312.516 1.00 50.00 ATOM 90 CA ILE U1224 404.259 196.786 310.274 1.00 50.00 ATOM 91 CA SER U1225 402.328 197.440 307.082 1.00 50.00 ATOM 92 CA ILE U1226 400.912 194.783 304.786 1.00 50.00 ATOM 93 CA LEU U1227 401.037 195.161 301.015 1.00 50.00 ATOM 94 CA THR U1228 399.720 193.184 298.056 1.00 50.00 ATOM 95 CA THR U1229 399.396 193.705 294.303 1.00 50.00 ATOM 96 CA TYR U1230 395.644 193.073 294.119 1.00 50.00 ATOM 97 CA ASN U1231 392.641 194.626 295.846 1.00 50.00 ATOM 98 CA GLY U1232 390.983 191.221 296.091 1.00 50.00 ATOM 99 CA GLN U1233 393.829 189.974 298.266 1.00 50.00 ATOM 100 CA LYS U1234 393.802 193.208 300.276 1.00 50.00 ATOM 101 CA HIS U1235 390.205 192.692 301.398 1.00 50.00 ATOM 102 CA LEU U1236 390.921 189.019 302.096 1.00 50.00 ATOM 103 CA ILE U1237 393.930 189.766 304.301 1.00 50.00 ATOM 104 CA ARG U1238 391.789 192.340 306.129 1.00 50.00 ATOM 105 CA ASP U1239 389.045 189.715 306.438 1.00 50.00 ATOM 106 CA ILE U1240 391.501 187.305 308.054 1.00 50.00 ATOM 107 CA ILE U1241 392.951 190.025 310.298 1.00 50.00 ATOM 108 CA ASN U1242 389.511 190.629 311.820 1.00 50.00 ATOM 109 CA ARG U1243 388.584 186.938 311.980 1.00 50.00 ATOM 110 CA ARG U1244 391.832 185.655 313.498 1.00 50.00 ATOM 111 CA CYS U1245 393.135 188.566 315.561 1.00 50.00 ATOM 112 CA GLY U1246 389.761 190.123 316.380 1.00 50.00 ATOM 113 CA ASN U1247 389.544 190.912 320.085 1.00 50.00 ATOM 114 CA ASN U1248 393.079 189.757 320.879 1.00 50.00 ATOM 115 CA PRO U1249 394.911 191.909 323.465 1.00 50.00 ATOM 116 CA LEU U1250 398.331 190.551 322.479 1.00 50.00 ATOM 117 CA ILE U1251 397.847 191.440 318.813 1.00 50.00 ATOM 118 CA GLY U1252 397.449 194.955 317.454 1.00 50.00 ATOM 119 CA ARG U1253 396.649 196.134 313.946 1.00 50.00 ATOM 120 CA PRO U1254 399.130 196.879 311.165 1.00 50.00 ATOM 121 CA ASN U1255 399.373 200.565 310.217 1.00 50.00 ATOM 122 CA LYS U1256 397.883 199.744 306.821 1.00 50.00 ATOM 123 CA VAL U1257 396.603 196.830 304.789 1.00 50.00 ATOM 124 CA THR U1258 396.635 198.070 301.206 1.00 50.00 ATOM 125 CA THR U1259 397.924 197.653 297.651 1.00 50.00 ATOM 126 CA VAL U1260 401.422 198.544 296.442 1.00 50.00 ATOM 127 CA ASP U1261 399.904 201.094 294.056 1.00 50.00 ATOM 128 CA ARG U1262 398.247 202.865 297.003 1.00 50.00 ATOM 129 CA PHE U1263 401.470 202.914 299.005 1.00 50.00 ATOM 130 CA GLN U1264 403.500 205.136 296.666 1.00 50.00 ATOM 131 CA GLY U1265 405.697 207.607 298.533 1.00 50.00 ATOM 132 CA GLN U1266 404.911 205.744 301.751 1.00 50.00 ATOM 133 CA GLN U1267 406.947 203.389 303.910 1.00 50.00 ATOM 134 CA ASN U1268 407.079 201.450 307.153 1.00 50.00 ATOM 135 CA ASP U1269 409.799 199.634 309.078 1.00 50.00 ATOM 136 CA TYR U1270 408.435 196.218 308.141 1.00 50.00 ATOM 137 CA ILE U1271 406.493 195.265 305.035 1.00 50.00 ATOM 138 CA LEU U1272 404.641 192.003 304.485 1.00 50.00 ATOM 139 CA LEU U1273 404.101 191.477 300.770 1.00 50.00 ATOM 140 CA SER U1274 401.765 189.064 298.960 1.00 50.00 ATOM 141 CA LEU U1275 402.141 188.627 295.189 1.00 50.00 ATOM 142 CA VAL U1276 399.013 186.441 294.942 1.00 50.00 ATOM 143 CA ARG U1277 399.346 185.053 291.405 1.00 50.00 ATOM 144 CA THR U1278 399.924 181.395 290.498 1.00 50.00 ATOM 145 CA ARG U1279 398.552 181.160 286.943 1.00 50.00 ATOM 146 CA ALA U1280 400.001 184.270 285.283 1.00 50.00 ATOM 147 CA VAL U1281 402.437 186.991 286.375 1.00 50.00 ATOM 148 CA GLY U1282 400.051 189.893 285.781 1.00 50.00 ATOM 149 CA HIS U1283 400.765 193.594 286.171 1.00 50.00 ATOM 150 CA LEU U1284 403.814 193.047 288.410 1.00 50.00 ATOM 151 CA ARG U1285 405.689 192.422 285.146 1.00 50.00 ATOM 152 CA ASP U1286 405.783 196.222 284.939 1.00 50.00 ATOM 153 CA VAL U1287 409.226 196.748 286.486 1.00 50.00 ATOM 154 CA ARG U1288 408.086 200.111 287.881 1.00 50.00 ATOM 155 CA ARG U1289 405.526 198.304 290.048 1.00 50.00 ATOM 156 CA LEU U1290 408.322 195.933 291.052 1.00 50.00 ATOM 157 CA VAL U1291 410.668 198.744 292.099 1.00 50.00 ATOM 158 CA VAL U1292 407.969 200.407 294.206 1.00 50.00 ATOM 159 CA ALA U1293 407.142 197.050 295.807 1.00 50.00 ATOM 160 CA MSE U1294 410.817 196.431 296.608 1.00 50.00 ATOM 161 CA SER U1295 411.329 199.810 298.281 1.00 50.00 ATOM 162 CA ARG U1296 408.522 200.342 300.806 1.00 50.00 ATOM 163 CA ALA U1297 410.464 198.835 303.712 1.00 50.00 ATOM 164 CA ARG U1298 413.043 200.520 305.936 1.00 50.00 ATOM 165 CA LEU U1299 414.187 197.473 307.885 1.00 50.00 ATOM 166 CA GLY U1300 412.250 194.355 306.902 1.00 50.00 ATOM 167 CA LEU U1301 410.679 192.943 303.755 1.00 50.00 ATOM 168 CA TYR U1302 408.976 189.552 303.668 1.00 50.00 ATOM 169 CA ILE U1303 407.415 188.391 300.439 1.00 50.00 ATOM 170 CA PHE U1304 404.991 185.534 299.850 1.00 50.00 ATOM 171 CA ALA U1305 404.625 184.187 296.330 1.00 50.00 ATOM 172 CA ARG U1306 404.672 181.239 293.975 1.00 50.00 ATOM 173 CA VAL U1307 408.394 181.701 293.357 1.00 50.00 ATOM 174 CA SER U1308 408.556 179.605 290.169 1.00 50.00 ATOM 175 CA LEU U1309 406.018 181.762 288.316 1.00 50.00 ATOM 176 CA PHE U1310 407.908 185.026 288.845 1.00 50.00 ATOM 177 CA GLN U1311 411.350 183.487 288.359 1.00 50.00 ATOM 178 CA ASN U1312 410.366 182.713 284.766 1.00 50.00 ATOM 179 CA CYS U1313 409.624 186.376 284.041 1.00 50.00 ATOM 180 CA PHE U1314 412.623 187.924 282.278 1.00 50.00 ATOM 181 CA GLU U1315 411.909 191.519 283.311 1.00 50.00 ATOM 182 CA LEU U1316 411.786 190.583 287.011 1.00 50.00 ATOM 183 CA THR U1317 415.065 188.641 287.012 1.00 50.00 ATOM 184 CA PRO U1318 417.395 191.270 288.552 1.00 50.00 ATOM 185 CA ALA U1319 415.229 191.351 291.694 1.00 50.00 ATOM 186 CA PHE U1320 414.258 187.690 291.992 1.00 50.00 ATOM 187 CA SER U1321 417.751 186.343 291.302 1.00 50.00 ATOM 188 CA GLN U1322 418.689 188.231 294.464 1.00 50.00 ATOM 189 CA LEU U1323 415.620 187.030 296.374 1.00 50.00 ATOM 190 CA THR U1324 416.274 183.373 295.517 1.00 50.00 ATOM 191 CA ALA U1325 419.853 183.705 296.753 1.00 50.00 ATOM 192 CA ARG U1326 418.260 183.160 300.162 1.00 50.00 ATOM 193 CA PRO U1327 416.048 180.247 301.313 1.00 50.00 ATOM 194 CA LEU U1328 412.419 180.107 300.181 1.00 50.00 ATOM 195 CA HIS U1329 411.375 178.696 303.547 1.00 50.00 ATOM 196 CA LEU U1330 410.861 181.191 306.382 1.00 50.00 ATOM 197 CA HIS U1331 413.658 181.087 308.957 1.00 50.00 ATOM 198 CA ILE U1332 412.328 181.998 312.400 1.00 50.00 ATOM 199 CA ILE U1333 413.977 182.468 315.794 1.00 50.00 TER