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: 31; COMPND 2 MOLECULE: ATP-dependent RNA helicase DHX8; COMPND 3 CHAIN: q; COMPND 4 EC: 3.6.4.13; EXPDTA ELECTRON MICROSCOPY DBREF 5MQF q 3 1215 UNP Q14562 DHX8_HUMAN 1 1220 SEQRES 1 q 182 ILE LEU GLU GLN ARG GLU SER LEU PRO ILE TYR LYS LEU SEQRES 2 q 182 LYS GLU GLN LEU VAL GLN ALA VAL HIS ASP ASN GLN ILE SEQRES 3 q 182 LEU ILE VAL ILE GLY GLU THR GLY SER GLY LYS THR THR SEQRES 4 q 182 GLN ILE THR GLN TYR LEU ALA GLU ALA GLY TYR THR SER SEQRES 5 q 182 ARG GLY LYS ILE GLY CYS THR GLN PRO ARG ARG VAL ALA SEQRES 6 q 182 ALA MET SER VAL ALA LYS ARG VAL SER GLU GLU PHE GLY SEQRES 7 q 182 CYS CYS LEU GLY GLN GLU VAL GLY TYR THR ILE ARG PHE SEQRES 8 q 182 GLU ASP CYS THR SER PRO GLU THR VAL ILE LYS TYR MET SEQRES 9 q 182 THR ASP GLY MET LEU LEU ARG GLU CYS LEU ILE ASP PRO SEQRES 10 q 182 ASP LEU THR GLN TYR ALA ILE ILE MET LEU ASP GLU ALA SEQRES 11 q 182 HIS GLU ARG THR ILE HIS THR ASP VAL LEU PHE GLY LEU SEQRES 12 q 182 LEU LYS LYS THR VAL GLN LYS ARG GLN ASP MET LYS LEU SEQRES 13 q 182 ILE VAL THR SER ALA THR LEU ASP ALA VAL LYS PHE SER SEQRES 14 q 182 GLN TYR PHE TYR GLU ALA PRO ILE PHE THR ILE PRO GLY ATOM 1 CA ILE q 558 238.391 395.719 217.719 1.00 50.00 ATOM 2 CA LEU q 559 240.849 397.543 215.105 1.00 50.00 ATOM 3 CA GLU q 560 240.459 400.854 216.874 1.00 50.00 ATOM 4 CA GLN q 561 240.839 399.356 220.306 1.00 50.00 ATOM 5 CA ARG q 562 243.937 397.283 219.515 1.00 50.00 ATOM 6 CA GLU q 563 245.576 400.323 217.985 1.00 50.00 ATOM 7 CA SER q 564 245.929 401.593 221.513 1.00 50.00 ATOM 8 CA LEU q 565 248.321 398.802 222.430 1.00 50.00 ATOM 9 CA PRO q 566 251.770 400.098 223.218 1.00 50.00 ATOM 10 CA ILE q 567 253.324 397.729 220.670 1.00 50.00 ATOM 11 CA TYR q 568 251.651 399.742 217.925 1.00 50.00 ATOM 12 CA LYS q 569 253.713 402.850 218.420 1.00 50.00 ATOM 13 CA LEU q 570 256.934 400.837 217.897 1.00 50.00 ATOM 14 CA LYS q 571 255.712 398.799 214.904 1.00 50.00 ATOM 15 CA GLU q 572 258.110 400.491 212.529 1.00 50.00 ATOM 16 CA GLN q 573 260.946 399.947 214.975 1.00 50.00 ATOM 17 CA LEU q 574 260.134 396.303 215.127 1.00 50.00 ATOM 18 CA VAL q 575 259.840 395.867 211.397 1.00 50.00 ATOM 19 CA GLN q 576 263.271 397.305 210.880 1.00 50.00 ATOM 20 CA ALA q 577 264.768 394.893 213.374 1.00 50.00 ATOM 21 CA VAL q 578 262.951 391.938 211.904 1.00 50.00 ATOM 22 CA HIS q 579 264.011 392.825 208.391 1.00 50.00 ATOM 23 CA ASP q 580 267.664 393.183 209.364 1.00 50.00 ATOM 24 CA ASN q 581 268.194 390.210 211.642 1.00 50.00 ATOM 25 CA GLN q 582 267.759 386.439 211.691 1.00 50.00 ATOM 26 CA ILE q 583 267.076 386.344 215.405 1.00 50.00 ATOM 27 CA LEU q 584 265.674 389.066 217.620 1.00 50.00 ATOM 28 CA ILE q 585 264.547 389.423 221.200 1.00 50.00 ATOM 29 CA VAL q 586 261.417 391.385 222.049 1.00 50.00 ATOM 30 CA ILE q 587 260.591 392.390 225.592 1.00 50.00 ATOM 31 CA GLY q 588 257.518 394.030 227.041 1.00 50.00 ATOM 32 CA GLU q 589 255.212 393.851 230.001 1.00 50.00 ATOM 33 CA THR q 590 252.196 391.632 229.814 1.00 50.00 ATOM 34 CA GLY q 591 249.262 393.411 228.218 1.00 50.00 ATOM 35 CA SER q 592 251.589 395.353 225.929 1.00 50.00 ATOM 36 CA GLY q 593 250.313 393.438 222.929 1.00 50.00 ATOM 37 CA LYS q 594 253.180 391.069 222.185 1.00 50.00 ATOM 38 CA THR q 595 251.219 387.870 221.534 1.00 50.00 ATOM 39 CA THR q 596 248.290 389.350 219.648 1.00 50.00 ATOM 40 CA GLN q 597 249.863 392.089 217.520 1.00 50.00 ATOM 41 CA ILE q 598 253.418 391.082 216.741 1.00 50.00 ATOM 42 CA THR q 599 252.567 387.929 214.866 1.00 50.00 ATOM 43 CA GLN q 600 250.154 390.008 212.840 1.00 50.00 ATOM 44 CA TYR q 601 252.794 392.565 212.045 1.00 50.00 ATOM 45 CA LEU q 602 255.014 389.767 210.815 1.00 50.00 ATOM 46 CA ALA q 603 252.288 388.538 208.497 1.00 50.00 ATOM 47 CA GLU q 604 252.342 391.865 206.684 1.00 50.00 ATOM 48 CA ALA q 605 256.074 392.074 206.264 1.00 50.00 ATOM 49 CA GLY q 606 256.604 388.347 205.799 1.00 50.00 ATOM 50 CA TYR q 607 253.624 387.426 203.620 1.00 50.00 ATOM 51 CA THR q 608 254.223 383.921 204.759 1.00 50.00 ATOM 52 CA SER q 609 251.490 382.243 202.620 1.00 50.00 ATOM 53 CA ARG q 610 253.777 379.656 201.003 1.00 50.00 ATOM 54 CA GLY q 611 254.493 378.804 204.666 1.00 50.00 ATOM 55 CA LYS q 612 253.163 379.705 208.080 1.00 50.00 ATOM 56 CA ILE q 613 254.221 381.551 211.189 1.00 50.00 ATOM 57 CA GLY q 614 254.284 379.773 214.499 1.00 50.00 ATOM 58 CA CYS q 615 253.745 381.471 217.826 1.00 50.00 ATOM 59 CA THR q 616 254.474 379.241 220.768 1.00 50.00 ATOM 60 CA GLN q 617 252.898 379.395 224.206 1.00 50.00 ATOM 61 CA PRO q 618 253.835 377.497 227.300 1.00 50.00 ATOM 62 CA ARG q 619 250.204 377.442 228.295 1.00 50.00 ATOM 63 CA ARG q 620 247.376 375.733 226.475 1.00 50.00 ATOM 64 CA VAL q 621 244.832 378.282 227.615 1.00 50.00 ATOM 65 CA ALA q 622 246.895 381.162 226.320 1.00 50.00 ATOM 66 CA ALA q 623 247.297 379.512 222.960 1.00 50.00 ATOM 67 CA MET q 624 243.624 378.679 222.602 1.00 50.00 ATOM 68 CA SER q 625 242.215 381.966 223.864 1.00 50.00 ATOM 69 CA VAL q 626 244.697 384.110 222.036 1.00 50.00 ATOM 70 CA ALA q 627 244.103 382.347 218.771 1.00 50.00 ATOM 71 CA LYS q 628 240.405 382.926 219.199 1.00 50.00 ATOM 72 CA ARG q 629 241.050 386.583 219.789 1.00 50.00 ATOM 73 CA VAL q 630 243.492 386.991 216.923 1.00 50.00 ATOM 74 CA SER q 631 241.087 385.345 214.544 1.00 50.00 ATOM 75 CA GLU q 632 238.644 388.069 215.440 1.00 50.00 ATOM 76 CA GLU q 633 241.246 390.778 215.044 1.00 50.00 ATOM 77 CA PHE q 634 242.053 389.291 211.650 1.00 50.00 ATOM 78 CA GLY q 635 238.406 389.020 210.672 1.00 50.00 ATOM 79 CA CYS q 636 238.917 385.371 209.782 1.00 50.00 ATOM 80 CA CYS q 637 237.361 382.163 211.054 1.00 50.00 ATOM 81 CA LEU q 638 239.129 380.260 213.794 1.00 50.00 ATOM 82 CA GLY q 639 240.692 377.095 212.479 1.00 50.00 ATOM 83 CA GLN q 640 241.182 378.805 209.149 1.00 50.00 ATOM 84 CA GLU q 641 243.691 381.576 208.565 1.00 50.00 ATOM 85 CA VAL q 642 244.328 381.650 212.281 1.00 50.00 ATOM 86 CA GLY q 643 244.275 378.454 214.263 1.00 50.00 ATOM 87 CA TYR q 644 245.829 376.756 217.241 1.00 50.00 ATOM 88 CA THR q 645 247.362 373.392 217.962 1.00 50.00 ATOM 89 CA ILE q 646 247.381 371.772 221.378 1.00 50.00 ATOM 90 CA ARG q 647 248.094 368.207 222.332 1.00 50.00 ATOM 91 CA PHE q 648 245.027 366.144 221.537 1.00 50.00 ATOM 92 CA GLU q 649 243.278 369.283 220.391 1.00 50.00 ATOM 93 CA ASP q 650 243.948 370.614 216.944 1.00 50.00 ATOM 94 CA CYS q 651 242.134 373.469 215.320 1.00 50.00 ATOM 95 CA THR q 652 243.976 374.168 212.110 1.00 50.00 ATOM 96 CA SER q 653 243.497 373.535 208.416 1.00 50.00 ATOM 97 CA PRO q 654 245.255 373.861 205.125 1.00 50.00 ATOM 98 CA GLU q 655 244.175 377.518 205.228 1.00 50.00 ATOM 99 CA THR q 656 246.019 378.340 208.458 1.00 50.00 ATOM 100 CA VAL q 657 248.653 381.080 208.049 1.00 50.00 ATOM 101 CA ILE q 658 249.255 381.952 211.699 1.00 50.00 ATOM 102 CA LYS q 659 249.434 379.114 214.130 1.00 50.00 ATOM 103 CA TYR q 660 249.408 379.652 217.860 1.00 50.00 ATOM 104 CA MET q 661 250.476 376.511 219.616 1.00 50.00 ATOM 105 CA THR q 662 252.018 375.183 222.767 1.00 50.00 ATOM 106 CA ASP q 663 255.767 374.893 222.860 1.00 50.00 ATOM 107 CA GLY q 664 255.343 371.185 223.276 1.00 50.00 ATOM 108 CA MET q 665 253.450 370.919 220.005 1.00 50.00 ATOM 109 CA LEU q 666 256.045 372.746 217.958 1.00 50.00 ATOM 110 CA LEU q 667 258.637 370.543 219.523 1.00 50.00 ATOM 111 CA ARG q 668 256.641 367.575 218.336 1.00 50.00 ATOM 112 CA GLU q 669 256.489 368.970 214.839 1.00 50.00 ATOM 113 CA CYS q 670 260.233 369.461 214.925 1.00 50.00 ATOM 114 CA LEU q 671 260.620 365.807 215.739 1.00 50.00 ATOM 115 CA ILE q 672 258.996 364.906 212.447 1.00 50.00 ATOM 116 CA ASP q 673 260.717 367.678 210.520 1.00 50.00 ATOM 117 CA PRO q 674 263.948 368.894 211.996 1.00 50.00 ATOM 118 CA ASP q 675 264.056 371.936 209.720 1.00 50.00 ATOM 119 CA LEU q 676 260.547 373.043 210.602 1.00 50.00 ATOM 120 CA THR q 677 260.391 373.761 206.883 1.00 50.00 ATOM 121 CA GLN q 678 256.728 374.667 207.092 1.00 50.00 ATOM 122 CA TYR q 679 257.424 377.881 208.988 1.00 50.00 ATOM 123 CA ALA q 680 259.131 381.047 207.715 1.00 50.00 ATOM 124 CA ILE q 681 259.002 382.691 211.107 1.00 50.00 ATOM 125 CA ILE q 682 258.916 381.117 214.524 1.00 50.00 ATOM 126 CA MET q 683 257.995 383.170 217.543 1.00 50.00 ATOM 127 CA LEU q 684 258.865 381.708 220.901 1.00 50.00 ATOM 128 CA ASP q 685 256.670 383.689 223.274 1.00 50.00 ATOM 129 CA GLU q 686 256.778 383.878 227.069 1.00 50.00 ATOM 130 CA ALA q 687 260.416 382.809 227.036 1.00 50.00 ATOM 131 CA HIS q 688 260.756 384.026 230.596 1.00 50.00 ATOM 132 CA GLU q 689 258.821 380.982 231.767 1.00 50.00 ATOM 133 CA ARG q 690 261.793 378.930 230.632 1.00 50.00 ATOM 134 CA THR q 691 259.799 375.760 230.186 1.00 50.00 ATOM 135 CA ILE q 692 261.516 372.569 229.108 1.00 50.00 ATOM 136 CA HIS q 693 259.929 372.688 225.686 1.00 50.00 ATOM 137 CA THR q 694 260.939 376.253 225.030 1.00 50.00 ATOM 138 CA ASP q 695 264.460 375.589 226.225 1.00 50.00 ATOM 139 CA VAL q 696 264.776 372.713 223.828 1.00 50.00 ATOM 140 CA LEU q 697 263.283 374.771 221.021 1.00 50.00 ATOM 141 CA PHE q 698 265.757 377.554 221.623 1.00 50.00 ATOM 142 CA GLY q 699 268.584 375.100 221.389 1.00 50.00 ATOM 143 CA LEU q 700 267.348 373.500 218.214 1.00 50.00 ATOM 144 CA LEU q 701 266.430 376.760 216.575 1.00 50.00 ATOM 145 CA LYS q 702 269.882 378.129 217.101 1.00 50.00 ATOM 146 CA LYS q 703 271.209 375.287 214.948 1.00 50.00 ATOM 147 CA THR q 704 268.375 375.290 212.441 1.00 50.00 ATOM 148 CA VAL q 705 269.059 378.913 211.707 1.00 50.00 ATOM 149 CA GLN q 706 272.426 378.036 210.262 1.00 50.00 ATOM 150 CA LYS q 707 270.673 375.514 208.040 1.00 50.00 ATOM 151 CA ARG q 708 267.987 377.871 206.813 1.00 50.00 ATOM 152 CA GLN q 709 268.683 381.486 205.898 1.00 50.00 ATOM 153 CA ASP q 710 264.979 381.808 205.138 1.00 50.00 ATOM 154 CA MET q 711 263.893 381.272 208.714 1.00 50.00 ATOM 155 CA LYS q 712 263.433 384.151 211.131 1.00 50.00 ATOM 156 CA LEU q 713 263.180 383.776 214.886 1.00 50.00 ATOM 157 CA ILE q 714 261.692 386.113 217.456 1.00 50.00 ATOM 158 CA VAL q 715 262.051 385.500 221.164 1.00 50.00 ATOM 159 CA THR q 716 259.514 387.306 223.264 1.00 50.00 ATOM 160 CA SER q 717 259.622 387.714 227.000 1.00 50.00 ATOM 161 CA ALA q 718 257.939 389.684 229.771 1.00 50.00 ATOM 162 CA THR q 719 261.155 390.198 231.677 1.00 50.00 ATOM 163 CA LEU q 720 262.878 393.438 230.856 1.00 50.00 ATOM 164 CA ASP q 721 266.027 391.381 231.369 1.00 50.00 ATOM 165 CA ALA q 722 267.394 390.775 227.842 1.00 50.00 ATOM 166 CA VAL q 723 271.070 390.139 228.367 1.00 50.00 ATOM 167 CA LYS q 724 271.243 386.426 228.937 1.00 50.00 ATOM 168 CA PHE q 725 269.023 385.786 225.952 1.00 50.00 ATOM 169 CA SER q 726 270.882 388.125 223.648 1.00 50.00 ATOM 170 CA GLN q 727 274.185 386.497 224.502 1.00 50.00 ATOM 171 CA TYR q 728 272.788 383.020 223.984 1.00 50.00 ATOM 172 CA PHE q 729 271.431 384.230 220.662 1.00 50.00 ATOM 173 CA TYR q 730 274.807 385.449 219.487 1.00 50.00 ATOM 174 CA GLU q 731 274.280 389.034 220.528 1.00 50.00 ATOM 175 CA ALA q 732 270.927 389.317 218.857 1.00 50.00 ATOM 176 CA PRO q 733 269.352 392.723 218.943 1.00 50.00 ATOM 177 CA ILE q 734 266.750 393.715 221.507 1.00 50.00 ATOM 178 CA PHE q 735 263.584 395.778 221.271 1.00 50.00 ATOM 179 CA THR q 736 261.986 396.804 224.497 1.00 50.00 ATOM 180 CA ILE q 737 258.604 398.354 224.973 1.00 50.00 ATOM 181 CA PRO q 738 258.222 400.858 227.706 1.00 50.00 ATOM 182 CA GLY q 739 256.038 399.916 230.635 1.00 50.00 TER