HEADER SPLICING 31-DEC-69 5ZWN TITLE Cryo-EM structure of the yeast pre-B complex at an average resolution TITLE 2 of 3.3 angstrom (Part II: U1 snRNP region) COMPND MOL_ID: 20; COMPND 2 MOLECULE: Pre-mRNA-splicing ATP-dependent RNA helicase PRP28; COMPND 3 CHAIN: y; COMPND 4 EC: 3.6.4.13; EXPDTA ELECTRON MICROSCOPY DBREF 5ZWN y 1 588 UNP P23394 PRP28_YEAST 1 588 SEQRES 1 y 217 ASN TRP GLU GLU LEU ASN ILE ILE PRO ARG ASP LEU LEU SEQRES 2 y 217 ARG VAL ILE ILE GLN GLU LEU ARG PHE PRO SER PRO THR SEQRES 3 y 217 PRO ILE GLN ARG ILE THR ILE PRO ASN VAL CYS ASN MET SEQRES 4 y 217 LYS GLN TYR ARG ASP PHE LEU GLY VAL ALA SER THR GLY SEQRES 5 y 217 SER GLY LYS THR LEU ALA PHE VAL ILE PRO ILE LEU ILE SEQRES 6 y 217 LYS MET SER ARG SER PRO PRO ARG PRO PRO SER LEU LYS SEQRES 7 y 217 ILE ILE ASP GLY PRO LYS ALA LEU ILE LEU ALA PRO THR SEQRES 8 y 217 ARG GLU LEU VAL GLN GLN ILE GLN LYS GLU THR GLN LYS SEQRES 9 y 217 VAL THR LYS ILE TRP SER LYS GLU SER ASN TYR ASP CYS SEQRES 10 y 217 LYS VAL ILE SER ILE VAL GLY GLY HIS SER LEU GLU GLU SEQRES 11 y 217 ILE SER PHE SER LEU SER GLU GLY CYS ASP ILE LEU VAL SEQRES 12 y 217 ALA THR PRO GLY ARG LEU ILE ASP SER LEU GLU ASN HIS SEQRES 13 y 217 LEU LEU VAL MET LYS GLN VAL GLU THR LEU VAL LEU ASP SEQRES 14 y 217 GLU ALA ASP LYS MET ILE ASP LEU GLY PHE GLU ASP GLN SEQRES 15 y 217 VAL THR ASN ILE LEU THR LYS VAL ASP ILE ASN ALA ASP SEQRES 16 y 217 SER ALA VAL ASN ARG GLN THR LEU MET PHE THR ALA THR SEQRES 17 y 217 MET THR PRO VAL ILE GLU LYS ILE ALA ATOM 1 CA ASN y 173 155.369 279.528 182.562 1.00 19.97 ATOM 2 CA TRP y 174 154.552 282.602 180.408 1.00 23.21 ATOM 3 CA GLU y 175 156.083 285.263 182.656 1.00 30.19 ATOM 4 CA GLU y 176 159.581 284.256 183.829 1.00 25.50 ATOM 5 CA LEU y 177 161.781 284.649 180.786 1.00 28.82 ATOM 6 CA ASN y 178 160.469 287.988 179.591 1.00 28.21 ATOM 7 CA ILE y 179 160.400 286.756 175.982 1.00 23.54 ATOM 8 CA ILE y 180 156.804 287.880 175.688 1.00 22.37 ATOM 9 CA PRO y 181 156.234 291.594 176.262 1.00 21.68 ATOM 10 CA ARG y 182 153.744 292.677 178.927 1.00 30.02 ATOM 11 CA ASP y 183 150.931 293.951 176.680 1.00 32.29 ATOM 12 CA LEU y 184 150.997 290.836 174.526 1.00 30.94 ATOM 13 CA LEU y 185 151.110 288.655 177.664 1.00 27.85 ATOM 14 CA ARG y 186 148.138 290.528 179.098 1.00 31.50 ATOM 15 CA VAL y 187 146.223 289.806 175.915 1.00 33.06 ATOM 16 CA ILE y 188 147.132 286.117 176.051 1.00 28.34 ATOM 17 CA ILE y 189 146.185 285.620 179.685 1.00 31.55 ATOM 18 CA GLN y 190 143.290 288.040 180.302 1.00 43.71 ATOM 19 CA GLU y 191 141.880 288.177 176.757 1.00 40.87 ATOM 20 CA LEU y 192 142.558 284.833 175.013 1.00 36.09 ATOM 21 CA ARG y 193 142.116 283.155 178.434 1.00 40.69 ATOM 22 CA PHE y 194 145.363 281.114 178.510 1.00 31.40 ATOM 23 CA PRO y 195 146.979 281.448 181.935 1.00 21.62 ATOM 24 CA SER y 196 149.465 278.651 181.090 1.00 23.86 ATOM 25 CA PRO y 197 151.220 277.734 177.841 1.00 20.43 ATOM 26 CA THR y 198 150.572 274.359 176.175 1.00 14.25 ATOM 27 CA PRO y 199 153.437 271.838 175.689 1.00 15.99 ATOM 28 CA ILE y 200 154.011 272.797 172.031 1.00 17.77 ATOM 29 CA GLN y 201 153.991 276.504 172.981 1.00 16.15 ATOM 30 CA ARG y 202 156.405 275.723 175.854 1.00 15.47 ATOM 31 CA ILE y 203 158.974 274.175 173.543 1.00 11.63 ATOM 32 CA THR y 204 158.411 276.232 170.364 1.00 14.26 ATOM 33 CA ILE y 205 158.493 279.765 171.695 1.00 17.62 ATOM 34 CA PRO y 206 161.972 279.849 173.282 1.00 19.99 ATOM 35 CA ASN y 207 163.462 277.999 170.305 1.00 20.87 ATOM 36 CA VAL y 208 162.232 280.409 167.640 1.00 22.40 ATOM 37 CA CYS y 209 162.390 283.621 169.682 1.00 26.95 ATOM 38 CA ASN y 210 166.052 283.302 170.375 1.00 55.11 ATOM 39 CA MET y 211 168.224 286.224 169.494 1.00 82.59 ATOM 40 CA LYS y 212 170.942 285.550 168.483 1.00 72.81 ATOM 41 CA GLN y 213 169.800 282.863 165.986 1.00 60.98 ATOM 42 CA TYR y 214 166.344 282.951 164.348 1.00 44.35 ATOM 43 CA ARG y 215 166.383 279.156 164.201 1.00 29.08 ATOM 44 CA ASP y 216 164.195 276.887 162.055 1.00 25.96 ATOM 45 CA PHE y 217 161.790 274.564 163.828 1.00 19.05 ATOM 46 CA LEU y 218 159.969 271.299 163.129 1.00 19.38 ATOM 47 CA GLY y 219 157.282 270.344 165.640 1.00 20.27 ATOM 48 CA VAL y 220 155.432 267.027 165.754 1.00 22.09 ATOM 49 CA ALA y 221 152.105 267.600 167.516 1.00 28.92 ATOM 50 CA SER y 222 148.339 267.177 167.134 1.00 41.65 ATOM 51 CA THR y 223 145.569 269.663 166.627 1.00 50.57 ATOM 52 CA GLY y 224 144.519 271.082 168.911 1.00 41.89 ATOM 53 CA SER y 225 147.562 271.266 171.136 1.00 33.44 ATOM 54 CA GLY y 226 147.688 275.039 170.782 1.00 22.12 ATOM 55 CA LYS y 227 149.974 275.222 167.725 1.00 22.69 ATOM 56 CA THR y 228 148.524 278.445 166.354 1.00 16.90 ATOM 57 CA LEU y 229 149.775 280.668 169.179 1.00 18.01 ATOM 58 CA ALA y 230 152.979 278.658 169.224 1.00 20.19 ATOM 59 CA PHE y 231 153.819 280.206 165.845 1.00 15.90 ATOM 60 CA VAL y 232 151.770 283.448 165.943 1.00 19.60 ATOM 61 CA ILE y 233 153.350 284.708 169.183 1.00 16.47 ATOM 62 CA PRO y 234 156.837 284.546 167.618 1.00 14.66 ATOM 63 CA ILE y 235 155.617 286.294 164.431 1.00 15.74 ATOM 64 CA LEU y 236 154.107 289.208 166.369 1.00 18.72 ATOM 65 CA ILE y 237 157.112 289.568 168.690 1.00 20.09 ATOM 66 CA LYS y 238 159.372 289.672 165.625 1.00 24.82 ATOM 67 CA MET y 239 157.066 292.221 163.996 1.00 24.81 ATOM 68 CA SER y 240 157.103 294.492 167.017 1.00 26.93 ATOM 69 CA ARG y 241 160.887 294.845 166.702 1.00 28.31 ATOM 70 CA SER y 242 160.576 297.091 163.606 1.00 27.27 ATOM 71 CA PRO y 243 158.406 300.145 162.981 1.00 31.51 ATOM 72 CA PRO y 244 155.031 299.587 161.360 1.00 29.44 ATOM 73 CA ARG y 245 155.079 299.778 157.568 1.00 24.62 ATOM 74 CA PRO y 246 152.761 302.175 155.712 1.00 21.77 ATOM 75 CA PRO y 247 150.273 300.340 153.418 1.00 20.00 ATOM 76 CA SER y 248 152.093 301.547 150.271 1.00 16.77 ATOM 77 CA LEU y 249 155.268 299.894 151.495 1.00 18.90 ATOM 78 CA LYS y 250 153.486 296.651 152.525 1.00 21.15 ATOM 79 CA ILE y 251 152.155 296.485 148.982 1.00 22.58 ATOM 80 CA ILE y 252 155.578 297.191 147.458 1.00 23.91 ATOM 81 CA ASP y 253 157.239 294.481 149.557 1.00 25.26 ATOM 82 CA GLY y 254 154.573 291.897 150.465 1.00 18.02 ATOM 83 CA PRO y 255 153.978 290.131 153.809 1.00 15.18 ATOM 84 CA LYS y 256 156.579 289.735 156.561 1.00 21.33 ATOM 85 CA ALA y 257 155.053 286.342 157.463 1.00 17.05 ATOM 86 CA LEU y 258 153.431 283.629 155.337 1.00 14.83 ATOM 87 CA ILE y 259 151.411 280.785 156.846 1.00 14.07 ATOM 88 CA LEU y 260 150.323 277.807 154.745 1.00 17.49 ATOM 89 CA ALA y 261 147.543 275.428 155.720 1.00 18.16 ATOM 90 CA PRO y 262 145.617 272.695 153.822 1.00 21.18 ATOM 91 CA THR y 263 142.015 273.776 154.329 1.00 19.10 ATOM 92 CA ARG y 264 139.813 276.849 154.429 1.00 20.07 ATOM 93 CA GLU y 265 138.737 275.931 157.967 1.00 28.83 ATOM 94 CA LEU y 266 142.254 276.005 159.361 1.00 19.95 ATOM 95 CA VAL y 267 143.271 279.178 157.441 1.00 16.72 ATOM 96 CA GLN y 268 140.225 280.981 158.784 1.00 19.89 ATOM 97 CA GLN y 269 140.838 279.730 162.305 1.00 22.17 ATOM 98 CA ILE y 270 144.425 280.983 162.177 1.00 22.51 ATOM 99 CA GLN y 271 143.362 284.374 160.862 1.00 21.46 ATOM 100 CA LYS y 272 140.690 284.702 163.579 1.00 23.61 ATOM 101 CA GLU y 273 143.063 283.783 166.442 1.00 22.82 ATOM 102 CA THR y 274 145.717 286.198 165.170 1.00 18.92 ATOM 103 CA GLN y 275 143.230 289.010 164.722 1.00 26.23 ATOM 104 CA LYS y 276 142.039 288.775 168.320 1.00 26.40 ATOM 105 CA VAL y 277 145.518 290.119 169.174 1.00 22.01 ATOM 106 CA THR y 278 146.229 292.424 166.227 1.00 28.77 ATOM 107 CA LYS y 279 142.906 294.248 166.651 1.00 29.40 ATOM 108 CA ILE y 280 143.903 295.233 170.156 1.00 34.50 ATOM 109 CA TRP y 281 147.441 296.014 169.103 1.00 32.57 ATOM 110 CA SER y 282 145.985 298.320 166.442 1.00 40.92 ATOM 111 CA LYS y 283 143.516 300.219 168.614 1.00 41.79 ATOM 112 CA GLU y 284 145.950 300.640 171.519 1.00 37.01 ATOM 113 CA SER y 285 149.104 301.508 169.546 1.00 37.62 ATOM 114 CA ASN y 286 150.206 302.744 166.140 1.00 30.80 ATOM 115 CA TYR y 287 150.666 299.227 164.892 1.00 37.63 ATOM 116 CA ASP y 288 148.283 298.544 162.122 1.00 45.96 ATOM 117 CA CYS y 289 148.967 294.918 161.329 1.00 35.97 ATOM 118 CA LYS y 290 146.901 293.377 158.580 1.00 25.32 ATOM 119 CA VAL y 291 146.181 289.663 158.557 1.00 17.89 ATOM 120 CA ILE y 292 144.861 288.510 155.213 1.00 18.62 ATOM 121 CA SER y 293 143.570 285.088 154.215 1.00 16.11 ATOM 122 CA ILE y 294 143.473 283.587 150.745 1.00 16.03 ATOM 123 CA VAL y 295 141.560 280.357 150.128 1.00 15.24 ATOM 124 CA GLY y 296 140.547 278.353 147.041 1.00 16.74 ATOM 125 CA GLY y 297 137.060 279.848 147.042 1.00 18.92 ATOM 126 CA HIS y 298 138.331 283.429 146.654 1.00 20.36 ATOM 127 CA SER y 299 137.939 285.182 143.296 1.00 20.52 ATOM 128 CA LEU y 300 140.848 287.227 142.011 1.00 20.43 ATOM 129 CA GLU y 301 138.655 290.270 142.530 1.00 32.50 ATOM 130 CA GLU y 302 138.174 289.438 146.219 1.00 26.66 ATOM 131 CA ILE y 303 141.841 288.614 146.780 1.00 20.10 ATOM 132 CA SER y 304 142.713 291.914 145.152 1.00 28.08 ATOM 133 CA PHE y 305 140.337 293.854 147.360 1.00 25.58 ATOM 134 CA SER y 306 141.605 292.017 150.476 1.00 20.59 ATOM 135 CA LEU y 307 145.190 292.867 149.557 1.00 20.48 ATOM 136 CA SER y 308 144.401 296.487 148.664 1.00 26.13 ATOM 137 CA GLU y 309 145.740 298.032 151.900 1.00 29.74 ATOM 138 CA GLY y 310 148.716 295.696 152.091 1.00 22.45 ATOM 139 CA CYS y 311 149.405 292.613 154.130 1.00 19.06 ATOM 140 CA ASP y 312 151.729 291.771 157.031 1.00 20.62 ATOM 141 CA ILE y 313 150.717 288.254 157.834 1.00 16.23 ATOM 142 CA LEU y 314 149.294 286.194 154.984 1.00 14.24 ATOM 143 CA VAL y 315 147.493 282.940 155.762 1.00 13.76 ATOM 144 CA ALA y 316 146.801 280.930 152.602 1.00 17.85 ATOM 145 CA THR y 317 146.007 277.601 150.999 1.00 14.94 ATOM 146 CA PRO y 318 148.868 276.753 148.593 1.00 16.04 ATOM 147 CA GLY y 319 147.120 276.315 145.210 1.00 22.31 ATOM 148 CA ARG y 320 145.363 279.642 145.448 1.00 20.71 ATOM 149 CA LEU y 321 148.507 281.384 146.693 1.00 21.36 ATOM 150 CA ILE y 322 150.181 280.191 143.534 1.00 17.85 ATOM 151 CA ASP y 323 147.287 281.565 141.453 1.00 20.51 ATOM 152 CA SER y 324 147.632 284.887 143.267 1.00 20.29 ATOM 153 CA LEU y 325 151.345 285.171 142.585 1.00 20.57 ATOM 154 CA GLU y 326 150.986 284.041 138.971 1.00 26.89 ATOM 155 CA ASN y 327 148.470 286.871 138.487 1.00 23.00 ATOM 156 CA HIS y 328 150.756 289.429 140.110 1.00 29.50 ATOM 157 CA LEU y 329 148.307 290.216 142.932 1.00 24.39 ATOM 158 CA LEU y 330 151.151 290.390 145.474 1.00 20.15 ATOM 159 CA VAL y 331 154.877 289.845 145.895 1.00 15.52 ATOM 160 CA MET y 332 157.100 288.149 148.435 1.00 23.15 ATOM 161 CA LYS y 333 160.434 289.974 148.703 1.00 28.18 ATOM 162 CA GLN y 334 160.368 290.242 152.496 1.00 28.09 ATOM 163 CA VAL y 335 159.063 287.018 154.009 1.00 25.03 ATOM 164 CA GLU y 336 160.930 286.672 157.307 1.00 26.14 ATOM 165 CA THR y 337 158.819 283.856 158.746 1.00 20.16 ATOM 166 CA LEU y 338 157.288 280.976 156.882 1.00 19.53 ATOM 167 CA VAL y 339 154.987 278.480 158.567 1.00 16.89 ATOM 168 CA LEU y 340 153.814 275.192 157.126 1.00 22.17 ATOM 169 CA ASP y 341 150.909 274.068 159.347 1.00 22.06 ATOM 170 CA GLU y 342 149.512 270.518 159.284 1.00 23.92 ATOM 171 CA ALA y 343 152.109 269.674 156.669 1.00 21.77 ATOM 172 CA ASP y 344 151.370 265.964 156.724 1.00 26.77 ATOM 173 CA LYS y 345 147.788 266.707 155.728 1.00 24.73 ATOM 174 CA MET y 346 148.942 269.074 152.997 1.00 20.68 ATOM 175 CA ILE y 347 150.990 266.219 151.639 1.00 25.28 ATOM 176 CA ASP y 348 148.151 263.729 152.003 1.00 24.55 ATOM 177 CA LEU y 349 145.762 265.974 150.062 1.00 17.71 ATOM 178 CA GLY y 350 148.371 266.070 147.289 1.00 21.29 ATOM 179 CA PHE y 351 149.923 269.515 147.778 1.00 22.76 ATOM 180 CA GLU y 352 153.619 268.602 148.045 1.00 22.82 ATOM 181 CA ASP y 353 154.593 270.158 144.694 1.00 24.35 ATOM 182 CA GLN y 354 152.641 273.384 145.334 1.00 22.29 ATOM 183 CA VAL y 355 154.271 273.764 148.736 1.00 26.15 ATOM 184 CA THR y 356 157.717 273.079 147.292 1.00 25.62 ATOM 185 CA ASN y 357 157.047 275.550 144.495 1.00 23.68 ATOM 186 CA ILE y 358 156.113 278.176 147.043 1.00 26.15 ATOM 187 CA LEU y 359 159.199 277.573 149.217 1.00 23.67 ATOM 188 CA THR y 360 161.304 277.876 146.086 1.00 28.37 ATOM 189 CA LYS y 361 159.585 281.134 144.950 1.00 30.70 ATOM 190 CA VAL y 362 159.883 282.678 148.413 1.00 30.43 ATOM 191 CA ASP y 363 163.562 281.880 148.522 1.00 34.77 ATOM 192 CA ILE y 364 164.147 283.081 144.932 1.00 33.31 ATOM 193 CA ASN y 365 162.456 286.459 145.300 1.00 29.89 ATOM 194 CA ALA y 366 163.815 287.322 148.747 1.00 32.03 ATOM 195 CA ASP y 367 165.846 290.499 149.063 1.00 38.11 ATOM 196 CA SER y 368 169.498 289.932 149.890 1.00 51.40 ATOM 197 CA ALA y 369 169.289 291.073 153.510 1.00 62.98 ATOM 198 CA VAL y 370 166.263 288.933 154.363 1.00 47.71 ATOM 199 CA ASN y 371 166.783 286.034 156.767 1.00 49.30 ATOM 200 CA ARG y 372 163.876 283.593 156.330 1.00 36.96 ATOM 201 CA GLN y 373 162.938 281.490 159.335 1.00 27.97 ATOM 202 CA THR y 374 160.901 278.348 158.667 1.00 20.29 ATOM 203 CA LEU y 375 158.634 276.507 161.088 1.00 21.42 ATOM 204 CA MET y 376 156.825 273.318 160.185 1.00 22.42 ATOM 205 CA PHE y 377 154.122 271.520 162.125 1.00 22.13 ATOM 206 CA THR y 378 152.826 268.028 161.544 1.00 25.07 ATOM 207 CA ALA y 379 150.875 265.379 163.414 1.00 29.46 ATOM 208 CA THR y 380 153.169 262.579 162.176 1.00 28.56 ATOM 209 CA MET y 381 156.634 262.109 160.736 1.00 36.29 ATOM 210 CA THR y 382 157.113 260.713 157.219 1.00 36.10 ATOM 211 CA PRO y 383 159.920 260.399 154.681 1.00 34.49 ATOM 212 CA VAL y 384 158.384 263.231 152.622 1.00 35.21 ATOM 213 CA ILE y 385 158.323 265.605 155.569 1.00 36.87 ATOM 214 CA GLU y 386 161.868 264.523 156.359 1.00 34.34 ATOM 215 CA LYS y 387 162.861 265.345 152.775 1.00 32.43 ATOM 216 CA ILE y 388 161.317 268.820 152.925 1.00 33.63 ATOM 217 CA ALA y 389 163.110 269.465 156.216 1.00 32.24 TER