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 176 ARG THR TYR PRO VAL GLU ILE LEU TYR THR LYS GLU PRO SEQRES 2 q 176 GLU THR ASP TYR LEU ASP ALA SER LEU ILE THR VAL MET SEQRES 3 q 176 GLN ILE HIS LEU THR GLU PRO PRO GLY ASP ILE LEU VAL SEQRES 4 q 176 PHE LEU THR GLY GLN GLU GLU ILE ASP THR ALA CYS GLU SEQRES 5 q 176 ILE LEU TYR GLU ARG MET LYS SER LEU GLY PRO ASP VAL SEQRES 6 q 176 PRO GLU LEU ILE ILE LEU PRO VAL TYR SER ALA LEU PRO SEQRES 7 q 176 SER GLU MET GLN THR ARG ILE PHE ASP PRO ALA PRO PRO SEQRES 8 q 176 GLY SER ARG LYS VAL VAL ILE ALA THR ASN ILE ALA GLU SEQRES 9 q 176 THR SER LEU THR ILE ASP GLY ILE TYR TYR VAL VAL ASP SEQRES 10 q 176 PRO GLY PHE VAL LYS GLN LYS VAL TYR ASN SER LYS THR SEQRES 11 q 176 GLY ILE ASP GLN LEU VAL VAL THR PRO ILE SER GLN ALA SEQRES 12 q 176 GLN ALA LYS GLN ARG ALA GLY ARG ALA GLY ARG THR GLY SEQRES 13 q 176 PRO GLY LYS CYS TYR ARG LEU TYR THR GLU ARG ALA TYR SEQRES 14 q 176 ARG ASP GLU MET LEU THR THR ATOM 1 CA ARG q 742 252.534 401.422 230.735 1.00 50.00 ATOM 2 CA THR q 743 251.591 400.072 234.161 1.00 50.00 ATOM 3 CA TYR q 744 249.714 402.330 236.551 1.00 50.00 ATOM 4 CA PRO q 745 250.766 402.420 240.128 1.00 50.00 ATOM 5 CA VAL q 746 249.363 399.687 242.307 1.00 50.00 ATOM 6 CA GLU q 747 248.797 400.085 245.984 1.00 50.00 ATOM 7 CA ILE q 748 250.082 397.138 247.894 1.00 50.00 ATOM 8 CA LEU q 749 248.378 395.753 250.953 1.00 50.00 ATOM 9 CA TYR q 750 250.096 393.262 253.214 1.00 50.00 ATOM 10 CA THR q 751 248.895 391.111 256.072 1.00 50.00 ATOM 11 CA LYS q 752 250.152 392.169 259.465 1.00 50.00 ATOM 12 CA GLU q 753 250.678 388.594 260.517 1.00 50.00 ATOM 13 CA PRO q 754 251.425 385.321 258.821 1.00 50.00 ATOM 14 CA GLU q 755 248.345 383.704 257.376 1.00 50.00 ATOM 15 CA THR q 756 247.928 380.045 258.227 1.00 50.00 ATOM 16 CA ASP q 757 244.916 379.371 256.039 1.00 50.00 ATOM 17 CA TYR q 758 244.901 381.414 252.855 1.00 50.00 ATOM 18 CA LEU q 759 241.792 380.118 251.116 1.00 50.00 ATOM 19 CA ASP q 760 239.284 381.535 253.563 1.00 50.00 ATOM 20 CA ALA q 761 241.312 384.705 253.802 1.00 50.00 ATOM 21 CA SER q 762 241.307 385.075 250.053 1.00 50.00 ATOM 22 CA LEU q 763 237.580 384.511 249.985 1.00 50.00 ATOM 23 CA ILE q 764 236.971 387.109 252.662 1.00 50.00 ATOM 24 CA THR q 765 239.111 389.714 250.930 1.00 50.00 ATOM 25 CA VAL q 766 237.321 389.261 247.639 1.00 50.00 ATOM 26 CA MET q 767 233.968 389.994 249.227 1.00 50.00 ATOM 27 CA GLN q 768 235.349 392.916 251.158 1.00 50.00 ATOM 28 CA ILE q 769 236.652 394.478 247.992 1.00 50.00 ATOM 29 CA HIS q 770 233.389 393.973 246.226 1.00 50.00 ATOM 30 CA LEU q 771 231.502 395.616 249.036 1.00 50.00 ATOM 31 CA THR q 772 233.871 398.495 249.792 1.00 50.00 ATOM 32 CA GLU q 773 235.760 399.311 246.611 1.00 50.00 ATOM 33 CA PRO q 774 234.899 401.347 243.619 1.00 50.00 ATOM 34 CA PRO q 775 234.268 399.700 240.266 1.00 50.00 ATOM 35 CA GLY q 776 237.013 397.419 239.016 1.00 50.00 ATOM 36 CA ASP q 777 237.224 393.693 238.425 1.00 50.00 ATOM 37 CA ILE q 778 238.975 391.274 240.719 1.00 50.00 ATOM 38 CA LEU q 779 241.620 388.721 239.861 1.00 50.00 ATOM 39 CA VAL q 780 242.235 386.049 242.468 1.00 50.00 ATOM 40 CA PHE q 781 245.169 383.714 242.097 1.00 50.00 ATOM 41 CA LEU q 782 244.655 380.147 243.214 1.00 50.00 ATOM 42 CA THR q 783 246.571 376.883 242.932 1.00 50.00 ATOM 43 CA GLY q 784 244.532 374.340 241.026 1.00 50.00 ATOM 44 CA GLN q 785 241.178 373.376 239.592 1.00 50.00 ATOM 45 CA GLU q 786 239.713 371.647 242.616 1.00 50.00 ATOM 46 CA GLU q 787 240.532 374.579 244.836 1.00 50.00 ATOM 47 CA ILE q 788 239.378 376.985 242.160 1.00 50.00 ATOM 48 CA ASP q 789 236.049 375.291 241.740 1.00 50.00 ATOM 49 CA THR q 790 235.595 375.246 245.483 1.00 50.00 ATOM 50 CA ALA q 791 236.271 378.975 245.631 1.00 50.00 ATOM 51 CA CYS q 792 233.939 379.688 242.768 1.00 50.00 ATOM 52 CA GLU q 793 231.058 378.058 244.584 1.00 50.00 ATOM 53 CA ILE q 794 231.794 379.730 247.893 1.00 50.00 ATOM 54 CA LEU q 795 232.314 383.187 246.452 1.00 50.00 ATOM 55 CA TYR q 796 229.290 382.826 244.249 1.00 50.00 ATOM 56 CA GLU q 797 227.131 381.747 247.146 1.00 50.00 ATOM 57 CA ARG q 798 228.388 384.511 249.398 1.00 50.00 ATOM 58 CA MET q 799 228.021 387.096 246.698 1.00 50.00 ATOM 59 CA LYS q 800 224.386 386.207 246.317 1.00 50.00 ATOM 60 CA SER q 801 223.893 386.634 250.022 1.00 50.00 ATOM 61 CA LEU q 802 225.546 390.022 249.866 1.00 50.00 ATOM 62 CA GLY q 803 223.427 390.778 246.805 1.00 50.00 ATOM 63 CA PRO q 804 221.027 392.445 249.027 1.00 50.00 ATOM 64 CA ASP q 805 222.418 395.977 248.919 1.00 50.00 ATOM 65 CA VAL q 806 225.457 394.943 246.881 1.00 50.00 ATOM 66 CA PRO q 807 226.018 394.899 243.188 1.00 50.00 ATOM 67 CA GLU q 808 225.889 391.551 241.475 1.00 50.00 ATOM 68 CA LEU q 809 229.065 389.527 241.315 1.00 50.00 ATOM 69 CA ILE q 810 229.924 387.251 238.477 1.00 50.00 ATOM 70 CA ILE q 811 232.513 384.581 239.211 1.00 50.00 ATOM 71 CA LEU q 812 234.582 382.702 236.651 1.00 50.00 ATOM 72 CA PRO q 813 237.114 379.906 236.931 1.00 50.00 ATOM 73 CA VAL q 814 240.329 379.785 234.927 1.00 50.00 ATOM 74 CA TYR q 815 242.652 376.801 234.823 1.00 50.00 ATOM 75 CA SER q 816 244.608 374.660 232.394 1.00 50.00 ATOM 76 CA ALA q 817 241.856 372.086 231.799 1.00 50.00 ATOM 77 CA LEU q 818 238.941 374.373 230.980 1.00 50.00 ATOM 78 CA PRO q 819 237.219 373.954 227.727 1.00 50.00 ATOM 79 CA SER q 820 237.498 376.798 225.232 1.00 50.00 ATOM 80 CA GLU q 821 233.934 377.952 225.586 1.00 50.00 ATOM 81 CA MET q 822 234.475 378.283 229.315 1.00 50.00 ATOM 82 CA GLN q 823 237.779 380.047 228.958 1.00 50.00 ATOM 83 CA THR q 824 236.168 382.705 226.792 1.00 50.00 ATOM 84 CA ARG q 825 233.702 383.534 229.560 1.00 50.00 ATOM 85 CA ILE q 826 236.468 385.196 231.575 1.00 50.00 ATOM 86 CA PHE q 827 236.365 388.047 229.039 1.00 50.00 ATOM 87 CA ASP q 828 232.677 388.830 229.572 1.00 50.00 ATOM 88 CA PRO q 829 231.834 392.199 230.893 1.00 50.00 ATOM 89 CA ALA q 830 230.835 392.640 234.489 1.00 50.00 ATOM 90 CA PRO q 831 227.159 392.661 235.025 1.00 50.00 ATOM 91 CA PRO q 832 225.449 395.967 235.090 1.00 50.00 ATOM 92 CA GLY q 833 225.530 397.521 238.497 1.00 50.00 ATOM 93 CA SER q 834 228.222 395.075 239.536 1.00 50.00 ATOM 94 CA ARG q 835 231.647 393.449 239.347 1.00 50.00 ATOM 95 CA LYS q 836 233.448 390.412 237.948 1.00 50.00 ATOM 96 CA VAL q 837 235.751 388.037 239.764 1.00 50.00 ATOM 97 CA VAL q 838 238.118 385.789 237.861 1.00 50.00 ATOM 98 CA ILE q 839 239.595 382.997 239.929 1.00 50.00 ATOM 99 CA ALA q 840 242.670 381.857 238.155 1.00 50.00 ATOM 100 CA THR q 841 245.825 379.881 238.320 1.00 50.00 ATOM 101 CA ASN q 842 249.211 381.331 237.316 1.00 50.00 ATOM 102 CA ILE q 843 247.975 381.440 233.752 1.00 50.00 ATOM 103 CA ALA q 844 246.824 384.975 234.567 1.00 50.00 ATOM 104 CA GLU q 845 250.248 386.023 235.730 1.00 50.00 ATOM 105 CA THR q 846 251.992 386.690 232.381 1.00 50.00 ATOM 106 CA SER q 847 250.107 384.620 229.811 1.00 50.00 ATOM 107 CA LEU q 848 247.077 386.757 229.032 1.00 50.00 ATOM 108 CA THR q 849 245.186 389.771 230.214 1.00 50.00 ATOM 109 CA ILE q 850 241.595 390.316 231.219 1.00 50.00 ATOM 110 CA ASP q 851 240.719 393.913 230.632 1.00 50.00 ATOM 111 CA GLY q 852 239.090 395.694 233.518 1.00 50.00 ATOM 112 CA ILE q 853 240.945 394.085 236.402 1.00 50.00 ATOM 113 CA TYR q 854 241.517 396.699 239.128 1.00 50.00 ATOM 114 CA TYR q 855 242.192 394.464 242.101 1.00 50.00 ATOM 115 CA VAL q 856 244.399 391.451 242.589 1.00 50.00 ATOM 116 CA VAL q 857 244.316 389.045 245.514 1.00 50.00 ATOM 117 CA ASP q 858 247.592 387.190 245.939 1.00 50.00 ATOM 118 CA PRO q 859 247.746 384.263 248.326 1.00 50.00 ATOM 119 CA GLY q 860 251.362 383.756 247.280 1.00 50.00 ATOM 120 CA PHE q 861 251.131 380.102 246.231 1.00 50.00 ATOM 121 CA VAL q 862 251.426 378.130 243.001 1.00 50.00 ATOM 122 CA LYS q 863 251.666 374.531 242.010 1.00 50.00 ATOM 123 CA GLN q 864 255.152 373.936 240.801 1.00 50.00 ATOM 124 CA LYS q 865 257.083 370.889 239.851 1.00 50.00 ATOM 125 CA VAL q 866 259.923 369.855 242.043 1.00 50.00 ATOM 126 CA TYR q 867 262.596 367.297 241.366 1.00 50.00 ATOM 127 CA ASN q 868 264.628 365.374 243.898 1.00 50.00 ATOM 128 CA SER q 869 267.950 364.114 242.587 1.00 50.00 ATOM 129 CA LYS q 870 268.634 361.787 245.457 1.00 50.00 ATOM 130 CA THR q 871 265.277 360.062 245.187 1.00 50.00 ATOM 131 CA GLY q 872 265.105 360.592 241.459 1.00 50.00 ATOM 132 CA ILE q 873 261.484 361.587 241.225 1.00 50.00 ATOM 133 CA ASP q 874 259.341 364.565 240.242 1.00 50.00 ATOM 134 CA GLN q 875 256.346 365.771 242.213 1.00 50.00 ATOM 135 CA LEU q 876 253.958 368.666 241.885 1.00 50.00 ATOM 136 CA VAL q 877 253.673 370.580 245.100 1.00 50.00 ATOM 137 CA VAL q 878 251.984 373.769 246.160 1.00 50.00 ATOM 138 CA THR q 879 254.738 376.133 247.148 1.00 50.00 ATOM 139 CA PRO q 880 255.379 379.740 247.807 1.00 50.00 ATOM 140 CA ILE q 881 255.765 381.890 244.738 1.00 50.00 ATOM 141 CA SER q 882 258.860 383.721 243.619 1.00 50.00 ATOM 142 CA GLN q 883 259.278 387.440 244.162 1.00 50.00 ATOM 143 CA ALA q 884 259.201 388.001 240.479 1.00 50.00 ATOM 144 CA GLN q 885 255.924 386.211 240.203 1.00 50.00 ATOM 145 CA ALA q 886 254.546 388.230 243.079 1.00 50.00 ATOM 146 CA LYS q 887 255.551 391.346 241.230 1.00 50.00 ATOM 147 CA GLN q 888 253.863 390.207 238.071 1.00 50.00 ATOM 148 CA ARG q 889 250.636 389.321 239.833 1.00 50.00 ATOM 149 CA ALA q 890 250.498 392.779 241.360 1.00 50.00 ATOM 150 CA GLY q 891 251.173 394.264 237.944 1.00 50.00 ATOM 151 CA ARG q 892 247.947 392.836 236.573 1.00 50.00 ATOM 152 CA ALA q 893 246.136 395.364 238.766 1.00 50.00 ATOM 153 CA GLY q 894 247.864 398.282 236.951 1.00 50.00 ATOM 154 CA ARG q 895 246.828 397.740 233.337 1.00 50.00 ATOM 155 CA THR q 896 243.742 399.970 233.052 1.00 50.00 ATOM 156 CA GLY q 897 244.255 402.440 235.874 1.00 50.00 ATOM 157 CA PRO q 898 245.689 402.728 239.342 1.00 50.00 ATOM 158 CA GLY q 899 244.938 399.505 241.144 1.00 50.00 ATOM 159 CA LYS q 900 245.377 397.584 244.342 1.00 50.00 ATOM 160 CA CYS q 901 246.988 394.270 245.188 1.00 50.00 ATOM 161 CA TYR q 902 246.183 392.368 248.344 1.00 50.00 ATOM 162 CA ARG q 903 248.981 390.084 249.390 1.00 50.00 ATOM 163 CA LEU q 904 248.078 387.388 251.862 1.00 50.00 ATOM 164 CA TYR q 905 251.514 387.578 253.438 1.00 50.00 ATOM 165 CA THR q 906 253.766 390.000 255.291 1.00 50.00 ATOM 166 CA GLU q 907 255.937 392.676 253.750 1.00 50.00 ATOM 167 CA ARG q 908 258.922 391.085 255.371 1.00 50.00 ATOM 168 CA ALA q 909 258.069 387.760 253.818 1.00 50.00 ATOM 169 CA TYR q 910 257.933 389.432 250.463 1.00 50.00 ATOM 170 CA ARG q 911 261.236 391.149 250.991 1.00 50.00 ATOM 171 CA ASP q 912 263.191 388.405 252.740 1.00 50.00 ATOM 172 CA GLU q 913 261.376 385.101 252.332 1.00 50.00 ATOM 173 CA MET q 914 260.389 384.676 248.711 1.00 50.00 ATOM 174 CA LEU q 915 263.070 383.402 246.404 1.00 50.00 ATOM 175 CA THR q 916 264.033 385.950 243.786 1.00 50.00 ATOM 176 CA THR q 917 263.327 383.764 240.787 1.00 50.00 TER