HEADER SPLICING 31-DEC-69 6AH0 TITLE The Cryo-EM Structure of the Precusor of Human Pre-catalytic TITLE 2 Spliceosome (pre-B complex) COMPND MOL_ID: 32; COMPND 2 MOLECULE: Splicing factor 3B subunit 5; COMPND 3 CHAIN: 7; EXPDTA ELECTRON MICROSCOPY DBREF 6AH0 7 1 86 UNP Q9BWJ5 SF3B5_HUMAN 1 86 SEQRES 1 7 66 GLN SER LYS TYR ILE GLY THR GLY HIS ALA ASP THR THR SEQRES 2 7 66 LYS TRP GLU TRP LEU VAL ASN GLN HIS ARG ASP SER TYR SEQRES 3 7 66 CYS SER TYR MET GLY HIS PHE ASP LEU LEU ASN TYR PHE SEQRES 4 7 66 ALA ILE ALA GLU ASN GLU SER LYS ALA ARG VAL ARG PHE SEQRES 5 7 66 ASN LEU MET GLU LYS MET LEU GLN PRO CYS GLY PRO PRO SEQRES 6 7 66 ALA ATOM 1 N GLN 7 15 434.336 285.347 297.939 1.00111.30 ATOM 2 CA GLN 7 15 434.188 284.016 297.242 1.00148.21 ATOM 3 C GLN 7 15 435.533 283.278 297.041 1.00143.31 ATOM 4 O GLN 7 15 435.678 282.103 297.343 1.00 87.60 ATOM 5 N SER 7 16 436.504 284.004 296.498 1.00156.03 ATOM 6 CA SER 7 16 437.817 283.436 296.185 1.00135.49 ATOM 7 C SER 7 16 438.494 282.838 297.426 1.00138.94 ATOM 8 O SER 7 16 438.841 281.685 297.446 1.00102.24 ATOM 9 N LYS 7 17 438.660 283.642 298.465 1.00182.05 ATOM 10 CA LYS 7 17 439.222 283.168 299.737 1.00181.53 ATOM 11 C LYS 7 17 438.297 282.181 300.434 1.00128.73 ATOM 12 O LYS 7 17 438.648 281.686 301.484 1.00118.92 ATOM 13 N TYR 7 18 437.120 281.891 299.893 1.00 89.33 ATOM 14 CA TYR 7 18 436.328 280.782 300.385 1.00 80.69 ATOM 15 C TYR 7 18 436.535 279.584 299.477 1.00 99.32 ATOM 16 O TYR 7 18 436.040 279.583 298.352 1.00131.17 ATOM 17 N ILE 7 19 437.231 278.561 299.979 1.00108.36 ATOM 18 CA ILE 7 19 437.728 277.451 299.146 1.00104.76 ATOM 19 C ILE 7 19 436.612 276.607 298.570 1.00 70.13 ATOM 20 O ILE 7 19 435.528 276.626 299.074 1.00 55.25 ATOM 21 N GLY 7 20 436.891 275.965 297.453 1.00 67.06 ATOM 22 CA GLY 7 20 435.874 275.271 296.734 1.00 85.33 ATOM 23 C GLY 7 20 435.151 276.172 295.724 1.00102.76 ATOM 24 O GLY 7 20 434.374 275.690 294.889 1.00113.18 ATOM 25 N THR 7 21 435.409 277.468 295.775 1.00 99.41 ATOM 26 CA THR 7 21 434.933 278.359 294.728 1.00 82.37 ATOM 27 C THR 7 21 435.361 277.816 293.371 1.00 58.47 ATOM 28 O THR 7 21 436.487 277.392 293.182 1.00 44.20 ATOM 29 N GLY 7 22 434.438 277.804 292.448 1.00 62.40 ATOM 30 CA GLY 7 22 434.764 277.540 291.082 1.00 83.13 ATOM 31 C GLY 7 22 434.719 278.801 290.217 1.00116.45 ATOM 32 O GLY 7 22 434.346 279.903 290.636 1.00 97.50 ATOM 33 N HIS 7 23 435.091 278.598 288.961 1.00142.92 ATOM 34 CA HIS 7 23 434.910 279.579 287.892 1.00132.26 ATOM 35 C HIS 7 23 434.795 278.757 286.596 1.00111.06 ATOM 36 O HIS 7 23 434.967 277.526 286.579 1.00 67.44 ATOM 37 N ALA 7 24 434.508 279.428 285.503 1.00115.71 ATOM 38 CA ALA 7 24 434.138 278.692 284.318 1.00125.10 ATOM 39 C ALA 7 24 435.329 278.005 283.652 1.00108.38 ATOM 40 O ALA 7 24 435.181 277.266 282.697 1.00 90.12 ATOM 41 N ASP 7 25 436.513 278.306 284.150 1.00121.73 ATOM 42 CA ASP 7 25 437.741 277.678 283.684 1.00136.87 ATOM 43 C ASP 7 25 438.059 276.427 284.479 1.00126.37 ATOM 44 O ASP 7 25 439.148 275.829 284.342 1.00 90.85 ATOM 45 N THR 7 26 437.124 276.019 285.339 1.00113.84 ATOM 46 CA THR 7 26 437.391 274.970 286.275 1.00 99.10 ATOM 47 C THR 7 26 437.661 273.660 285.539 1.00 77.42 ATOM 48 O THR 7 26 436.910 273.216 284.714 1.00 61.20 ATOM 49 N THR 7 27 438.766 273.054 285.873 1.00 74.37 ATOM 50 CA THR 7 27 439.089 271.791 285.340 1.00 82.09 ATOM 51 C THR 7 27 438.295 270.696 285.994 1.00 63.51 ATOM 52 O THR 7 27 437.978 270.736 287.158 1.00 45.31 ATOM 53 N LYS 7 28 438.005 269.686 285.211 1.00 67.30 ATOM 54 CA LYS 7 28 437.519 268.417 285.696 1.00 63.12 ATOM 55 C LYS 7 28 438.256 267.993 286.945 1.00 52.20 ATOM 56 O LYS 7 28 437.669 267.832 288.027 1.00 59.93 ATOM 57 N TRP 7 29 439.541 267.821 286.808 1.00 48.22 ATOM 58 CA TRP 7 29 440.317 267.266 287.890 1.00 57.27 ATOM 59 C TRP 7 29 440.060 268.070 289.158 1.00 58.71 ATOM 60 O TRP 7 29 439.597 267.494 290.137 1.00 71.86 ATOM 61 N GLU 7 30 440.271 269.393 289.126 1.00 52.20 ATOM 62 CA GLU 7 30 440.152 270.140 290.367 1.00 59.81 ATOM 63 C GLU 7 30 438.779 269.947 291.023 1.00 57.84 ATOM 64 O GLU 7 30 438.676 269.669 292.213 1.00 53.98 ATOM 65 N TRP 7 31 437.730 270.062 290.242 1.00 55.69 ATOM 66 CA TRP 7 31 436.393 269.928 290.822 1.00 48.34 ATOM 67 C TRP 7 31 436.263 268.590 291.567 1.00 41.97 ATOM 68 O TRP 7 31 435.799 268.541 292.711 1.00 31.32 ATOM 69 N LEU 7 32 436.781 267.542 290.957 1.00 50.68 ATOM 70 CA LEU 7 32 436.598 266.283 291.619 1.00 59.70 ATOM 71 C LEU 7 32 437.471 266.162 292.854 1.00 59.99 ATOM 72 O LEU 7 32 437.047 265.585 293.869 1.00 61.03 ATOM 73 N VAL 7 33 438.689 266.683 292.781 1.00 51.97 ATOM 74 CA VAL 7 33 439.491 266.562 293.970 1.00 51.63 ATOM 75 C VAL 7 33 438.802 267.337 295.093 1.00 44.75 ATOM 76 O VAL 7 33 438.806 266.879 296.263 1.00 54.19 ATOM 77 N ASN 7 34 438.201 268.494 294.789 1.00 40.09 ATOM 78 CA ASN 7 34 437.479 269.193 295.796 1.00 45.59 ATOM 79 C ASN 7 34 436.527 268.266 296.488 1.00 51.91 ATOM 80 O ASN 7 34 436.551 268.043 297.739 1.00 44.87 ATOM 81 N GLN 7 35 435.634 267.710 295.701 1.00 57.01 ATOM 82 CA GLN 7 35 434.602 267.009 296.389 1.00 59.98 ATOM 83 C GLN 7 35 435.140 265.812 297.131 1.00 46.92 ATOM 84 O GLN 7 35 434.609 265.472 298.175 1.00 40.83 ATOM 85 N HIS 7 36 436.214 265.191 296.671 1.00 45.61 ATOM 86 CA HIS 7 36 436.938 264.268 297.552 1.00 51.35 ATOM 87 C HIS 7 36 437.176 264.871 298.919 1.00 43.16 ATOM 88 O HIS 7 36 436.631 264.400 299.917 1.00 37.10 ATOM 89 N ARG 7 37 438.004 265.908 298.966 1.00 41.44 ATOM 90 CA ARG 7 37 438.416 266.387 300.262 1.00 38.59 ATOM 91 C ARG 7 37 437.158 266.566 301.110 1.00 50.58 ATOM 92 O ARG 7 37 437.037 266.014 302.227 1.00 59.66 ATOM 93 N ASP 7 38 436.171 267.289 300.586 1.00 58.98 ATOM 94 CA ASP 7 38 434.999 267.576 301.399 1.00 77.44 ATOM 95 C ASP 7 38 434.296 266.309 301.872 1.00 50.86 ATOM 96 O ASP 7 38 433.848 266.214 303.027 1.00 41.34 ATOM 97 N SER 7 39 434.259 265.329 301.008 1.00 38.24 ATOM 98 CA SER 7 39 433.860 264.010 301.484 1.00 36.71 ATOM 99 C SER 7 39 434.610 263.667 302.751 1.00 28.74 ATOM 100 O SER 7 39 434.033 263.209 303.743 1.00 28.77 ATOM 101 N TYR 7 40 435.897 263.928 302.757 1.00 25.64 ATOM 102 CA TYR 7 40 436.641 263.543 303.919 1.00 30.89 ATOM 103 C TYR 7 40 436.248 264.335 305.146 1.00 28.81 ATOM 104 O TYR 7 40 435.715 263.739 306.100 1.00 30.68 ATOM 105 N CYS 7 41 436.397 265.636 305.126 1.00 41.72 ATOM 106 CA CYS 7 41 436.066 266.380 306.382 1.00 65.92 ATOM 107 C CYS 7 41 434.651 266.117 306.867 1.00 53.52 ATOM 108 O CYS 7 41 434.365 266.291 308.073 1.00 46.31 ATOM 109 N SER 7 42 433.818 265.650 305.946 1.00 38.01 ATOM 110 CA SER 7 42 432.621 265.037 306.450 1.00 35.05 ATOM 111 C SER 7 42 432.905 263.740 307.220 1.00 24.91 ATOM 112 O SER 7 42 432.509 263.589 308.376 1.00 19.71 ATOM 113 N TYR 7 43 433.656 262.827 306.606 1.00 21.80 ATOM 114 CA TYR 7 43 433.841 261.522 307.248 1.00 21.05 ATOM 115 C TYR 7 43 434.508 261.653 308.608 1.00 18.08 ATOM 116 O TYR 7 43 434.133 261.012 309.529 1.00 17.11 ATOM 117 N MET 7 44 435.505 262.497 308.703 1.00 24.47 ATOM 118 CA MET 7 44 436.024 262.837 310.059 1.00 27.75 ATOM 119 C MET 7 44 434.894 263.443 310.890 1.00 19.53 ATOM 120 O MET 7 44 434.854 263.265 312.052 1.00 2.00 ATOM 121 N GLY 7 45 434.002 264.211 310.252 1.00 24.47 ATOM 122 CA GLY 7 45 432.958 264.856 311.010 1.00 26.31 ATOM 123 C GLY 7 45 432.002 263.935 311.615 1.00 25.70 ATOM 124 O GLY 7 45 431.870 263.883 312.809 1.00 21.27 ATOM 125 N HIS 7 46 431.302 263.215 310.775 1.00 28.71 ATOM 126 CA HIS 7 46 430.055 262.534 311.263 1.00 28.31 ATOM 127 C HIS 7 46 430.326 261.246 311.913 1.00 23.17 ATOM 128 O HIS 7 46 430.668 260.236 311.236 1.00 16.54 ATOM 129 N PHE 7 47 430.328 261.298 313.207 1.00 31.89 ATOM 130 CA PHE 7 47 430.970 260.255 313.985 1.00 55.12 ATOM 131 C PHE 7 47 430.577 258.905 313.458 1.00 66.42 ATOM 132 O PHE 7 47 431.423 258.046 313.143 1.00 63.53 ATOM 133 N ASP 7 48 429.254 258.735 313.310 1.00 71.10 ATOM 134 CA ASP 7 48 428.753 257.452 312.849 1.00 78.57 ATOM 135 C ASP 7 48 429.362 257.072 311.548 1.00 55.79 ATOM 136 O ASP 7 48 430.087 256.085 311.529 1.00 56.70 ATOM 137 N LEU 7 49 429.133 257.851 310.506 1.00 43.47 ATOM 138 CA LEU 7 49 429.661 257.498 309.219 1.00 46.22 ATOM 139 C LEU 7 49 431.032 256.956 309.335 1.00 44.23 ATOM 140 O LEU 7 49 431.389 255.894 308.760 1.00 48.25 ATOM 141 N LEU 7 50 431.818 257.596 310.178 1.00 49.75 ATOM 142 CA LEU 7 50 433.133 257.086 310.406 1.00 59.72 ATOM 143 C LEU 7 50 433.066 255.674 310.919 1.00 43.49 ATOM 144 O LEU 7 50 433.633 254.726 310.314 1.00 32.10 ATOM 145 N ASN 7 51 432.332 255.510 312.009 1.00 36.35 ATOM 146 CA ASN 7 51 432.257 254.175 312.589 1.00 34.80 ATOM 147 C ASN 7 51 431.817 253.150 311.573 1.00 28.21 ATOM 148 O ASN 7 51 432.315 252.046 311.556 1.00 24.98 ATOM 149 N TYR 7 52 430.935 253.538 310.695 1.00 27.55 ATOM 150 CA TYR 7 52 430.576 252.668 309.621 1.00 30.69 ATOM 151 C TYR 7 52 431.817 252.182 308.935 1.00 26.84 ATOM 152 O TYR 7 52 432.074 250.945 308.897 1.00 28.20 ATOM 153 N PHE 7 53 432.644 253.095 308.431 1.00 24.83 ATOM 154 CA PHE 7 53 433.806 252.629 307.706 1.00 25.82 ATOM 155 C PHE 7 53 434.567 251.687 308.564 1.00 26.83 ATOM 156 O PHE 7 53 434.877 250.559 308.163 1.00 29.82 ATOM 157 N ALA 7 54 434.862 252.108 309.767 1.00 28.86 ATOM 158 CA ALA 7 54 435.677 251.276 310.640 1.00 36.53 ATOM 159 C ALA 7 54 435.211 249.866 310.724 1.00 28.06 ATOM 160 O ALA 7 54 436.017 248.943 310.621 1.00 20.60 ATOM 161 N ILE 7 55 433.910 249.691 310.935 1.00 28.02 ATOM 162 CA ILE 7 55 433.384 248.372 310.959 1.00 31.66 ATOM 163 C ILE 7 55 433.755 247.655 309.682 1.00 29.77 ATOM 164 O ILE 7 55 434.400 246.601 309.735 1.00 28.97 ATOM 165 N ALA 7 56 433.383 248.210 308.549 1.00 34.03 ATOM 166 CA ALA 7 56 433.500 247.457 307.325 1.00 41.19 ATOM 167 C ALA 7 56 434.904 246.969 307.175 1.00 50.57 ATOM 168 O ALA 7 56 435.183 245.802 307.417 1.00 54.46 ATOM 169 N GLU 7 57 435.819 247.862 306.852 1.00 66.50 ATOM 170 CA GLU 7 57 437.219 247.522 306.775 1.00 83.46 ATOM 171 C GLU 7 57 437.821 247.669 308.170 1.00 73.49 ATOM 172 O GLU 7 57 437.862 248.737 308.750 1.00 51.34 ATOM 173 N ASN 7 58 438.299 246.559 308.687 1.00 94.52 ATOM 174 CA ASN 7 58 438.549 246.427 310.094 1.00129.85 ATOM 175 C ASN 7 58 439.846 247.151 310.419 1.00139.65 ATOM 176 O ASN 7 58 440.935 246.756 309.954 1.00134.56 ATOM 177 N GLU 7 59 439.724 248.219 311.211 1.00124.20 ATOM 178 CA GLU 7 59 440.871 248.975 311.734 1.00111.76 ATOM 179 C GLU 7 59 440.466 249.668 313.027 1.00 70.54 ATOM 180 O GLU 7 59 439.439 249.382 313.629 1.00 64.42 ATOM 181 N SER 7 60 441.296 250.564 313.475 1.00 60.62 ATOM 182 CA SER 7 60 440.866 251.479 314.518 1.00 65.62 ATOM 183 C SER 7 60 440.009 252.533 313.932 1.00 70.57 ATOM 184 O SER 7 60 440.060 252.775 312.717 1.00 92.01 ATOM 185 N LYS 7 61 439.237 253.215 314.760 1.00 60.27 ATOM 186 CA LYS 7 61 438.810 254.535 314.349 1.00 57.23 ATOM 187 C LYS 7 61 440.043 255.323 313.855 1.00 66.55 ATOM 188 O LYS 7 61 440.062 255.904 312.752 1.00 58.92 ATOM 189 N ALA 7 62 441.076 255.337 314.694 1.00 61.91 ATOM 190 CA ALA 7 62 442.217 256.138 314.391 1.00 60.68 ATOM 191 C ALA 7 62 442.778 255.838 313.028 1.00 41.89 ATOM 192 O ALA 7 62 442.684 256.670 312.122 1.00 31.26 ATOM 193 N ARG 7 63 443.295 254.639 312.848 1.00 43.82 ATOM 194 CA ARG 7 63 443.906 254.307 311.574 1.00 59.85 ATOM 195 C ARG 7 63 443.044 254.708 310.424 1.00 56.70 ATOM 196 O ARG 7 63 443.552 255.096 309.376 1.00 74.02 ATOM 197 N VAL 7 64 441.739 254.649 310.593 1.00 47.91 ATOM 198 CA VAL 7 64 440.891 255.273 309.632 1.00 45.83 ATOM 199 C VAL 7 64 441.288 256.735 309.489 1.00 32.45 ATOM 200 O VAL 7 64 441.907 257.104 308.489 1.00 27.17 ATOM 201 N ARG 7 65 440.995 257.553 310.510 1.00 28.33 ATOM 202 CA ARG 7 65 441.184 258.972 310.320 1.00 32.43 ATOM 203 C ARG 7 65 442.573 259.259 309.762 1.00 43.80 ATOM 204 O ARG 7 65 442.740 260.061 308.834 1.00 43.61 ATOM 205 N PHE 7 66 443.579 258.591 310.316 1.00 60.58 ATOM 206 CA PHE 7 66 444.940 258.756 309.819 1.00 70.18 ATOM 207 C PHE 7 66 445.016 258.514 308.314 1.00 62.00 ATOM 208 O PHE 7 66 445.342 259.419 307.549 1.00 46.00 ATOM 209 N ASN 7 67 444.633 257.322 307.879 1.00 61.27 ATOM 210 CA ASN 7 67 444.600 257.020 306.455 1.00 53.55 ATOM 211 C ASN 7 67 443.958 258.117 305.707 1.00 48.73 ATOM 212 O ASN 7 67 444.519 258.622 304.725 1.00 59.60 ATOM 213 N LEU 7 68 442.776 258.528 306.132 1.00 53.59 ATOM 214 CA LEU 7 68 442.088 259.560 305.388 1.00 67.94 ATOM 215 C LEU 7 68 442.993 260.789 305.226 1.00 54.27 ATOM 216 O LEU 7 68 443.257 261.259 304.114 1.00 40.67 ATOM 217 N MET 7 69 443.506 261.263 306.334 1.00 53.83 ATOM 218 CA MET 7 69 444.305 262.431 306.293 1.00 68.97 ATOM 219 C MET 7 69 445.600 262.221 305.500 1.00 75.98 ATOM 220 O MET 7 69 446.334 263.161 305.231 1.00 78.95 ATOM 221 N GLU 7 70 445.913 260.986 305.159 1.00 91.49 ATOM 222 CA GLU 7 70 446.880 260.775 304.092 1.00101.98 ATOM 223 C GLU 7 70 446.263 261.040 302.751 1.00 66.80 ATOM 224 O GLU 7 70 446.791 261.802 301.981 1.00 50.27 ATOM 225 N LYS 7 71 445.119 260.434 302.485 1.00 58.71 ATOM 226 CA LYS 7 71 444.526 260.508 301.185 1.00 55.71 ATOM 227 C LYS 7 71 444.044 261.864 300.846 1.00 55.95 ATOM 228 O LYS 7 71 443.666 262.085 299.703 1.00 75.46 ATOM 229 N MET 7 72 444.079 262.788 301.782 1.00 62.41 ATOM 230 CA MET 7 72 443.580 264.138 301.544 1.00 69.52 ATOM 231 C MET 7 72 444.145 264.874 300.351 1.00 50.12 ATOM 232 O MET 7 72 443.424 265.333 299.508 1.00 38.22 ATOM 233 N LEU 7 73 445.439 265.023 300.313 1.00 43.92 ATOM 234 CA LEU 7 73 445.992 265.761 299.223 1.00 54.14 ATOM 235 C LEU 7 73 446.036 264.981 297.876 1.00 45.26 ATOM 236 O LEU 7 73 446.017 265.513 296.811 1.00 32.20 ATOM 237 N GLN 7 74 446.101 263.718 297.984 1.00 64.80 ATOM 238 CA GLN 7 74 446.351 262.920 296.836 1.00107.84 ATOM 239 C GLN 7 74 445.172 262.774 295.894 1.00101.09 ATOM 240 O GLN 7 74 445.358 262.894 294.685 1.00157.67 ATOM 241 N PRO 7 75 443.963 262.560 296.426 1.00 76.64 ATOM 242 CA PRO 7 75 443.028 261.627 295.794 1.00 75.88 ATOM 243 C PRO 7 75 442.930 261.870 294.307 1.00 83.55 ATOM 244 O PRO 7 75 443.009 263.021 293.811 1.00 69.71 ATOM 245 N CYS 7 76 442.744 260.757 293.606 1.00 98.70 ATOM 246 CA CYS 7 76 442.835 260.671 292.177 1.00107.36 ATOM 247 C CYS 7 76 444.253 260.532 291.707 1.00117.66 ATOM 248 O CYS 7 76 444.485 260.042 290.628 1.00123.51 ATOM 249 N GLY 7 77 445.224 260.862 292.543 1.00140.18 ATOM 250 CA GLY 7 77 446.612 260.803 292.123 1.00141.85 ATOM 251 C GLY 7 77 447.006 262.132 291.474 1.00163.69 ATOM 252 O GLY 7 77 446.250 263.127 291.487 1.00140.49 ATOM 253 N PRO 7 78 448.188 262.165 290.873 1.00144.08 ATOM 254 CA PRO 7 78 448.789 263.428 290.423 1.00113.76 ATOM 255 C PRO 7 78 447.902 264.170 289.456 1.00 99.14 ATOM 256 O PRO 7 78 446.984 263.603 288.876 1.00 94.85 ATOM 257 N PRO 7 79 448.149 265.459 289.279 1.00123.86 ATOM 258 CA PRO 7 79 447.294 266.239 288.362 1.00163.69 ATOM 259 C PRO 7 79 447.578 265.864 286.891 1.00178.30 ATOM 260 O PRO 7 79 448.243 264.868 286.618 1.00153.83 ATOM 261 N ALA 7 80 447.090 266.672 285.951 1.00174.23 ATOM 262 CA ALA 7 80 447.464 266.540 284.555 1.00154.69 ATOM 263 C ALA 7 80 447.969 267.884 283.998 1.00128.07 ATOM 264 O ALA 7 80 449.148 268.032 283.663 1.00 82.57 TER