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 178 ASN VAL PRO GLU ILE GLN ARG THR ASN LEU ALA SER THR SEQRES 2 q 178 VAL LEU SER LEU LYS ALA MET GLY ILE ASN ASP LEU LEU SEQRES 3 q 178 SER PHE ASP PHE GLY SER PRO MET GLU THR LEU ILE THR SEQRES 4 q 178 ALA MET GLU GLN LEU TYR THR LEU GLY ALA LEU ASP ASP SEQRES 5 q 178 GLU GLY LEU LEU THR ARG LEU GLY ARG ARG MET ALA GLU SEQRES 6 q 178 PHE PRO LEU GLU PRO MET LEU CYS LYS MET LEU ILE MET SEQRES 7 q 178 SER VAL HIS LEU GLY CYS SER GLU GLU MET LEU THR ILE SEQRES 8 q 178 VAL SER MET LEU SER VAL GLN ASN VAL PHE TYR ARG PRO SEQRES 9 q 178 LYS ASP LYS GLN ALA LEU ALA ASP GLN LYS LYS ALA LYS SEQRES 10 q 178 PHE HIS GLN THR GLU GLY ASP HIS LEU THR LEU LEU ALA SEQRES 11 q 178 VAL TYR ASN SER TRP LYS ASN ASN LYS PHE SER ASN PRO SEQRES 12 q 178 TRP CYS TYR GLU ASN PHE ILE GLN ALA ARG SER LEU ARG SEQRES 13 q 178 ARG ALA GLN ASP ILE ARG LYS GLN MET LEU GLY ILE MET SEQRES 14 q 178 ASP ARG HIS LYS LEU ASP VAL VAL SER ATOM 1 CA ASN q 918 262.221 380.226 240.104 1.00 50.00 ATOM 2 CA VAL q 919 264.601 377.767 238.490 1.00 50.00 ATOM 3 CA PRO q 920 264.188 376.791 234.908 1.00 50.00 ATOM 4 CA GLU q 921 262.055 373.728 234.424 1.00 50.00 ATOM 5 CA ILE q 922 264.877 371.700 232.977 1.00 50.00 ATOM 6 CA GLN q 923 266.705 371.812 236.320 1.00 50.00 ATOM 7 CA ARG q 924 263.407 370.678 237.890 1.00 50.00 ATOM 8 CA THR q 925 262.674 367.678 235.727 1.00 50.00 ATOM 9 CA ASN q 926 263.046 364.018 235.005 1.00 50.00 ATOM 10 CA LEU q 927 264.656 363.926 231.565 1.00 50.00 ATOM 11 CA ALA q 928 263.326 360.682 230.086 1.00 50.00 ATOM 12 CA SER q 929 260.795 362.378 227.845 1.00 50.00 ATOM 13 CA THR q 930 263.345 364.981 226.860 1.00 50.00 ATOM 14 CA VAL q 931 265.951 362.380 225.962 1.00 50.00 ATOM 15 CA LEU q 932 263.597 360.525 223.678 1.00 50.00 ATOM 16 CA SER q 933 262.672 363.762 221.981 1.00 50.00 ATOM 17 CA LEU q 934 266.264 364.834 221.580 1.00 50.00 ATOM 18 CA LYS q 935 267.097 361.443 220.105 1.00 50.00 ATOM 19 CA ALA q 936 264.158 361.769 217.748 1.00 50.00 ATOM 20 CA MET q 937 265.623 365.145 216.882 1.00 50.00 ATOM 21 CA GLY q 938 268.756 363.325 215.843 1.00 50.00 ATOM 22 CA ILE q 939 270.875 364.741 218.623 1.00 50.00 ATOM 23 CA ASN q 940 273.707 362.307 219.281 1.00 50.00 ATOM 24 CA ASP q 941 275.687 364.221 221.871 1.00 50.00 ATOM 25 CA LEU q 942 273.169 364.777 224.624 1.00 50.00 ATOM 26 CA LEU q 943 275.710 366.142 227.057 1.00 50.00 ATOM 27 CA SER q 944 276.892 368.792 224.604 1.00 50.00 ATOM 28 CA PHE q 945 273.399 369.953 223.659 1.00 50.00 ATOM 29 CA ASP q 946 273.465 373.722 223.800 1.00 50.00 ATOM 30 CA PHE q 947 270.987 374.289 226.594 1.00 50.00 ATOM 31 CA GLY q 948 269.312 368.860 238.031 1.00 50.00 ATOM 32 CA SER q 949 271.379 369.475 234.895 1.00 50.00 ATOM 33 CA PRO q 950 270.630 369.012 231.154 1.00 50.00 ATOM 34 CA MET q 951 273.317 366.326 230.629 1.00 50.00 ATOM 35 CA GLU q 952 272.440 364.349 233.773 1.00 50.00 ATOM 36 CA THR q 953 268.702 364.151 232.997 1.00 50.00 ATOM 37 CA LEU q 954 269.417 363.289 229.352 1.00 50.00 ATOM 38 CA ILE q 955 271.709 360.391 230.335 1.00 50.00 ATOM 39 CA THR q 956 269.084 359.144 232.829 1.00 50.00 ATOM 40 CA ALA q 957 266.372 359.315 230.131 1.00 50.00 ATOM 41 CA MET q 958 268.585 357.391 227.666 1.00 50.00 ATOM 42 CA GLU q 959 269.187 354.654 230.257 1.00 50.00 ATOM 43 CA GLN q 960 265.410 354.420 230.815 1.00 50.00 ATOM 44 CA LEU q 961 264.813 354.021 227.055 1.00 50.00 ATOM 45 CA TYR q 962 267.326 351.166 226.907 1.00 50.00 ATOM 46 CA THR q 963 265.738 349.316 229.858 1.00 50.00 ATOM 47 CA LEU q 964 262.264 349.767 228.289 1.00 50.00 ATOM 48 CA GLY q 965 263.478 348.144 225.051 1.00 50.00 ATOM 49 CA ALA q 966 263.168 351.372 223.057 1.00 50.00 ATOM 50 CA LEU q 967 266.907 351.324 222.255 1.00 50.00 ATOM 51 CA ASP q 968 269.072 348.314 221.359 1.00 50.00 ATOM 52 CA ASP q 969 272.642 347.414 222.407 1.00 50.00 ATOM 53 CA GLU q 970 274.069 349.847 219.806 1.00 50.00 ATOM 54 CA GLY q 971 271.809 352.697 221.004 1.00 50.00 ATOM 55 CA LEU q 972 269.592 352.657 217.906 1.00 50.00 ATOM 56 CA LEU q 973 265.793 352.920 218.029 1.00 50.00 ATOM 57 CA THR q 974 264.058 349.542 217.904 1.00 50.00 ATOM 58 CA ARG q 975 260.675 348.833 216.282 1.00 50.00 ATOM 59 CA LEU q 976 259.189 349.256 219.770 1.00 50.00 ATOM 60 CA GLY q 977 261.045 352.566 220.210 1.00 50.00 ATOM 61 CA ARG q 978 259.869 353.826 216.798 1.00 50.00 ATOM 62 CA ARG q 979 256.263 352.996 217.676 1.00 50.00 ATOM 63 CA MET q 980 256.530 354.545 221.161 1.00 50.00 ATOM 64 CA ALA q 981 257.898 357.734 219.568 1.00 50.00 ATOM 65 CA GLU q 982 254.628 358.327 217.704 1.00 50.00 ATOM 66 CA PHE q 983 252.760 358.979 220.970 1.00 50.00 ATOM 67 CA PRO q 984 252.959 362.242 222.974 1.00 50.00 ATOM 68 CA LEU q 985 253.140 360.440 226.336 1.00 50.00 ATOM 69 CA GLU q 986 255.968 359.861 228.826 1.00 50.00 ATOM 70 CA PRO q 987 258.061 356.803 227.784 1.00 50.00 ATOM 71 CA MET q 988 256.741 354.315 230.376 1.00 50.00 ATOM 72 CA LEU q 989 253.177 355.093 229.215 1.00 50.00 ATOM 73 CA CYS q 990 254.248 354.698 225.558 1.00 50.00 ATOM 74 CA LYS q 991 255.805 351.324 226.376 1.00 50.00 ATOM 75 CA MET q 992 252.706 349.922 228.066 1.00 50.00 ATOM 76 CA LEU q 993 250.491 351.163 225.202 1.00 50.00 ATOM 77 CA ILE q 994 252.586 349.402 222.531 1.00 50.00 ATOM 78 CA MET q 995 252.889 346.230 224.637 1.00 50.00 ATOM 79 CA SER q 996 249.097 346.147 225.075 1.00 50.00 ATOM 80 CA VAL q 997 248.941 345.598 221.297 1.00 50.00 ATOM 81 CA HIS q 998 251.089 342.457 221.695 1.00 50.00 ATOM 82 CA LEU q 999 249.261 341.414 224.867 1.00 50.00 ATOM 83 CA GLY q1000 245.821 341.864 223.283 1.00 50.00 ATOM 84 CA CYS q1001 244.432 344.563 225.576 1.00 50.00 ATOM 85 CA SER q1002 244.946 347.826 223.660 1.00 50.00 ATOM 86 CA GLU q1003 241.227 348.674 223.957 1.00 50.00 ATOM 87 CA GLU q1004 241.593 348.771 227.743 1.00 50.00 ATOM 88 CA MET q1005 245.057 350.375 227.663 1.00 50.00 ATOM 89 CA LEU q1006 243.952 353.302 225.477 1.00 50.00 ATOM 90 CA THR q1007 241.330 354.028 228.142 1.00 50.00 ATOM 91 CA ILE q1008 243.768 353.562 231.046 1.00 50.00 ATOM 92 CA VAL q1009 246.419 355.800 229.452 1.00 50.00 ATOM 93 CA SER q1010 243.779 358.495 228.846 1.00 50.00 ATOM 94 CA MET q1011 242.463 358.231 232.420 1.00 50.00 ATOM 95 CA LEU q1012 246.025 358.557 233.776 1.00 50.00 ATOM 96 CA SER q1013 246.447 361.730 231.684 1.00 50.00 ATOM 97 CA VAL q1014 243.691 363.686 233.505 1.00 50.00 ATOM 98 CA GLN q1015 243.553 365.205 237.009 1.00 50.00 ATOM 99 CA ASN q1016 240.683 364.812 239.502 1.00 50.00 ATOM 100 CA VAL q1017 238.357 362.013 238.393 1.00 50.00 ATOM 101 CA PHE q1018 236.684 361.457 241.772 1.00 50.00 ATOM 102 CA TYR q1019 235.593 364.187 244.144 1.00 50.00 ATOM 103 CA ARG q1020 235.059 363.730 247.856 1.00 50.00 ATOM 104 CA PRO q1021 232.994 366.449 249.594 1.00 50.00 ATOM 105 CA LYS q1022 233.700 366.813 253.334 1.00 50.00 ATOM 106 CA ASP q1023 230.044 366.135 254.245 1.00 50.00 ATOM 107 CA LYS q1024 229.569 363.208 251.835 1.00 50.00 ATOM 108 CA GLN q1025 232.816 361.296 252.460 1.00 50.00 ATOM 109 CA ALA q1026 231.310 357.913 253.396 1.00 50.00 ATOM 110 CA LEU q1027 228.866 358.145 250.481 1.00 50.00 ATOM 111 CA ALA q1028 231.536 359.278 247.999 1.00 50.00 ATOM 112 CA ASP q1029 233.789 356.423 249.165 1.00 50.00 ATOM 113 CA GLN q1030 230.863 354.004 248.920 1.00 50.00 ATOM 114 CA LYS q1031 230.122 355.078 245.334 1.00 50.00 ATOM 115 CA LYS q1032 233.841 354.875 244.482 1.00 50.00 ATOM 116 CA ALA q1033 234.247 351.393 246.036 1.00 50.00 ATOM 117 CA LYS q1034 231.619 350.097 243.592 1.00 50.00 ATOM 118 CA PHE q1035 234.189 350.727 240.829 1.00 50.00 ATOM 119 CA HIS q1036 237.032 349.146 242.848 1.00 50.00 ATOM 120 CA GLN q1037 238.717 346.238 241.083 1.00 50.00 ATOM 121 CA THR q1038 240.603 343.553 243.010 1.00 50.00 ATOM 122 CA GLU q1039 243.665 344.051 240.767 1.00 50.00 ATOM 123 CA GLY q1040 244.018 347.730 241.713 1.00 50.00 ATOM 124 CA ASP q1041 243.857 351.334 240.570 1.00 50.00 ATOM 125 CA HIS q1042 244.519 351.137 236.811 1.00 50.00 ATOM 126 CA LEU q1043 241.692 348.613 236.320 1.00 50.00 ATOM 127 CA THR q1044 239.513 350.768 238.602 1.00 50.00 ATOM 128 CA LEU q1045 240.116 353.744 236.263 1.00 50.00 ATOM 129 CA LEU q1046 239.080 351.497 233.376 1.00 50.00 ATOM 130 CA ALA q1047 235.924 350.459 235.283 1.00 50.00 ATOM 131 CA VAL q1048 234.979 354.114 235.892 1.00 50.00 ATOM 132 CA TYR q1049 235.309 355.113 232.215 1.00 50.00 ATOM 133 CA ASN q1050 233.463 352.030 230.944 1.00 50.00 ATOM 134 CA SER q1051 230.589 352.579 233.405 1.00 50.00 ATOM 135 CA TRP q1052 230.321 356.228 232.326 1.00 50.00 ATOM 136 CA LYS q1053 230.090 355.040 228.710 1.00 50.00 ATOM 137 CA ASN q1054 227.572 352.297 229.584 1.00 50.00 ATOM 138 CA ASN q1055 225.435 354.875 231.410 1.00 50.00 ATOM 139 CA LYS q1056 225.329 357.005 228.231 1.00 50.00 ATOM 140 CA PHE q1057 227.927 359.663 229.207 1.00 50.00 ATOM 141 CA SER q1058 225.413 361.185 231.625 1.00 50.00 ATOM 142 CA ASN q1059 226.234 364.273 233.698 1.00 50.00 ATOM 143 CA PRO q1060 223.561 363.395 236.318 1.00 50.00 ATOM 144 CA TRP q1061 225.182 359.930 236.566 1.00 50.00 ATOM 145 CA CYS q1062 228.563 361.586 237.203 1.00 50.00 ATOM 146 CA TYR q1063 226.981 363.737 239.933 1.00 50.00 ATOM 147 CA GLU q1064 225.357 360.671 241.545 1.00 50.00 ATOM 148 CA ASN q1065 228.666 358.781 241.629 1.00 50.00 ATOM 149 CA PHE q1066 230.883 361.722 242.694 1.00 50.00 ATOM 150 CA ILE q1067 232.775 361.726 239.405 1.00 50.00 ATOM 151 CA GLN q1068 234.029 364.842 237.620 1.00 50.00 ATOM 152 CA ALA q1069 232.289 364.816 234.229 1.00 50.00 ATOM 153 CA ARG q1070 234.806 367.347 232.849 1.00 50.00 ATOM 154 CA SER q1071 237.747 365.016 233.577 1.00 50.00 ATOM 155 CA LEU q1072 236.050 362.101 231.802 1.00 50.00 ATOM 156 CA ARG q1073 235.328 364.327 228.797 1.00 50.00 ATOM 157 CA ARG q1074 239.017 365.297 228.627 1.00 50.00 ATOM 158 CA ALA q1075 239.931 361.593 228.998 1.00 50.00 ATOM 159 CA GLN q1076 237.518 360.844 226.131 1.00 50.00 ATOM 160 CA ASP q1077 239.182 363.490 223.928 1.00 50.00 ATOM 161 CA ILE q1078 242.637 362.090 224.704 1.00 50.00 ATOM 162 CA ARG q1079 241.490 358.517 223.959 1.00 50.00 ATOM 163 CA LYS q1080 240.214 359.569 220.510 1.00 50.00 ATOM 164 CA GLN q1081 243.559 361.249 219.810 1.00 50.00 ATOM 165 CA MET q1082 245.518 358.160 220.925 1.00 50.00 ATOM 166 CA LEU q1083 243.228 355.870 218.897 1.00 50.00 ATOM 167 CA GLY q1084 243.825 358.027 215.809 1.00 50.00 ATOM 168 CA ILE q1085 247.581 357.504 216.221 1.00 50.00 ATOM 169 CA MET q1086 247.069 353.742 216.671 1.00 50.00 ATOM 170 CA ASP q1087 245.044 353.641 213.443 1.00 50.00 ATOM 171 CA ARG q1088 247.494 355.763 211.406 1.00 50.00 ATOM 172 CA HIS q1089 250.347 353.344 212.155 1.00 50.00 ATOM 173 CA LYS q1090 248.254 350.145 211.937 1.00 50.00 ATOM 174 CA LEU q1091 248.582 349.273 215.632 1.00 50.00 ATOM 175 CA ASP q1092 245.800 346.768 216.360 1.00 50.00 ATOM 176 CA VAL q1093 243.131 347.690 218.905 1.00 50.00 ATOM 177 CA VAL q1094 241.674 344.652 220.706 1.00 50.00 ATOM 178 CA SER q1095 239.983 343.920 224.037 1.00 50.00 TER