HEADER SPLICING 31-DEC-69 6J6Q TITLE Cryo-EM structure of the yeast B*-b2 complex at an average resolution TITLE 2 of 3.7 angstrom COMPND MOL_ID: 3; COMPND 2 MOLECULE: Pre-mRNA-splicing factor CWC21; COMPND 3 CHAIN: J; EXPDTA ELECTRON MICROSCOPY DBREF 6J6Q J 1 135 UNP Q03375 CWC21_YEAST 1 135 SEQRES 1 J 27 SER TYR ASN GLY ILE GLY LEU LYS SER ALA LYS GLY SER SEQRES 2 J 27 SER THR SER GLY HIS VAL GLN ARG SER LEU ALA SER ASN SEQRES 3 J 27 ASN ATOM 1 N SER J 2 289.788 318.362 257.945 1.00 46.73 ATOM 2 CA SER J 2 289.710 317.305 256.948 1.00 46.73 ATOM 3 C SER J 2 290.844 316.311 257.119 1.00 46.73 ATOM 4 O SER J 2 291.925 316.669 257.575 1.00 46.73 ATOM 5 CB SER J 2 289.744 317.895 255.544 1.00 46.73 ATOM 6 OG SER J 2 291.000 318.484 255.276 1.00 46.73 ATOM 7 N TYR J 3 290.589 315.068 256.713 1.00 41.71 ATOM 8 CA TYR J 3 291.513 313.945 256.869 1.00 41.71 ATOM 9 C TYR J 3 292.724 314.188 255.973 1.00 41.71 ATOM 10 O TYR J 3 292.824 313.706 254.846 1.00 41.71 ATOM 11 CB TYR J 3 290.796 312.649 256.503 1.00 41.71 ATOM 12 CG TYR J 3 291.560 311.366 256.721 1.00 41.71 ATOM 13 CD1 TYR J 3 291.556 310.732 257.949 1.00 41.71 ATOM 14 CD2 TYR J 3 292.277 310.782 255.687 1.00 41.71 ATOM 15 CE1 TYR J 3 292.249 309.558 258.139 1.00 41.71 ATOM 16 CE2 TYR J 3 292.979 309.623 255.869 1.00 41.71 ATOM 17 CZ TYR J 3 292.961 309.011 257.092 1.00 41.71 ATOM 18 OH TYR J 3 293.665 307.843 257.254 1.00 41.71 ATOM 19 N ASN J 4 293.677 314.955 256.484 1.00 43.60 ATOM 20 CA ASN J 4 294.821 315.366 255.678 1.00 43.60 ATOM 21 C ASN J 4 296.015 314.455 255.904 1.00 43.60 ATOM 22 O ASN J 4 297.158 314.908 255.986 1.00 43.60 ATOM 23 CB ASN J 4 295.175 316.820 255.958 1.00 43.60 ATOM 24 CG ASN J 4 294.122 317.777 255.443 1.00 43.60 ATOM 25 OD1 ASN J 4 293.558 317.574 254.373 1.00 43.60 ATOM 26 ND2 ASN J 4 293.855 318.831 256.201 1.00 43.60 ATOM 27 N GLY J 5 295.757 313.155 256.023 1.00 43.37 ATOM 28 CA GLY J 5 296.776 312.169 256.300 1.00 43.37 ATOM 29 C GLY J 5 296.881 311.798 257.755 1.00 43.37 ATOM 30 O GLY J 5 297.695 310.936 258.106 1.00 43.37 ATOM 31 N ILE J 6 296.061 312.404 258.601 1.00 41.46 ATOM 32 CA ILE J 6 296.149 312.295 260.045 1.00 41.46 ATOM 33 C ILE J 6 294.865 311.685 260.570 1.00 41.46 ATOM 34 O ILE J 6 293.819 311.730 259.919 1.00 41.46 ATOM 35 CB ILE J 6 296.385 313.671 260.677 1.00 41.46 ATOM 36 CG1 ILE J 6 295.289 314.602 260.196 1.00 41.46 ATOM 37 CG2 ILE J 6 297.735 314.218 260.292 1.00 41.46 ATOM 38 CD1 ILE J 6 295.285 315.890 260.866 1.00 41.46 ATOM 39 N GLY J 7 294.951 311.108 261.756 1.00 35.68 ATOM 40 CA GLY J 7 293.787 310.497 262.353 1.00 35.68 ATOM 41 C GLY J 7 293.795 308.993 262.227 1.00 35.68 ATOM 42 O GLY J 7 294.857 308.373 262.150 1.00 35.68 ATOM 43 N LEU J 8 292.616 308.395 262.191 1.00 37.98 ATOM 44 CA LEU J 8 292.488 306.953 262.188 1.00 37.98 ATOM 45 C LEU J 8 291.869 306.480 260.888 1.00 37.98 ATOM 46 O LEU J 8 291.204 307.236 260.179 1.00 37.98 ATOM 47 CB LEU J 8 291.623 306.472 263.343 1.00 37.98 ATOM 48 CG LEU J 8 292.211 306.656 264.725 1.00 37.98 ATOM 49 CD1 LEU J 8 291.163 306.337 265.751 1.00 37.98 ATOM 50 CD2 LEU J 8 293.412 305.765 264.896 1.00 37.98 ATOM 51 N LYS J 9 292.104 305.207 260.589 1.00 46.26 ATOM 52 CA LYS J 9 291.383 304.569 259.500 1.00 46.26 ATOM 53 C LYS J 9 289.917 304.412 259.858 1.00 46.26 ATOM 54 O LYS J 9 289.040 304.573 259.004 1.00 46.26 ATOM 55 CB LYS J 9 292.023 303.224 259.187 1.00 46.26 ATOM 56 CG LYS J 9 293.426 303.356 258.636 1.00 46.26 ATOM 57 CD LYS J 9 294.078 302.003 258.433 1.00 46.26 ATOM 58 CE LYS J 9 293.467 301.263 257.260 1.00 46.26 ATOM 59 NZ LYS J 9 293.777 301.929 255.966 1.00 46.26 ATOM 60 N SER J 10 289.638 304.118 261.121 1.00 43.04 ATOM 61 CA SER J 10 288.284 304.112 261.650 1.00 43.04 ATOM 62 C SER J 10 288.375 304.261 263.156 1.00 43.04 ATOM 63 O SER J 10 289.428 304.054 263.758 1.00 43.04 ATOM 64 CB SER J 10 287.527 302.833 261.291 1.00 43.04 ATOM 65 OG SER J 10 286.244 302.835 261.889 1.00 43.04 ATOM 66 N ALA J 11 287.245 304.610 263.761 1.00 44.07 ATOM 67 CA ALA J 11 287.134 304.663 265.208 1.00 44.07 ATOM 68 C ALA J 11 286.416 303.442 265.752 1.00 44.07 ATOM 69 O ALA J 11 285.953 303.454 266.892 1.00 44.07 ATOM 70 CB ALA J 11 286.419 305.939 265.643 1.00 44.07 ATOM 71 N LYS J 12 286.308 302.388 264.952 1.00 41.53 ATOM 72 CA LYS J 12 285.580 301.206 265.385 1.00 41.53 ATOM 73 C LYS J 12 286.404 300.377 266.358 1.00 41.53 ATOM 74 O LYS J 12 286.026 300.208 267.520 1.00 41.53 ATOM 75 CB LYS J 12 285.167 300.390 264.165 1.00 41.53 ATOM 76 CG LYS J 12 284.427 299.113 264.447 1.00 41.53 ATOM 77 CD LYS J 12 283.840 298.597 263.158 1.00 41.53 ATOM 78 CE LYS J 12 283.198 297.258 263.332 1.00 41.53 ATOM 79 NZ LYS J 12 284.244 296.230 263.394 1.00 41.53 ATOM 80 N GLY J 13 287.544 299.877 265.918 1.00 39.63 ATOM 81 CA GLY J 13 288.339 299.067 266.810 1.00 39.63 ATOM 82 C GLY J 13 289.282 299.839 267.698 1.00 39.63 ATOM 83 O GLY J 13 290.104 299.232 268.388 1.00 39.63 ATOM 84 N SER J 14 289.181 301.161 267.714 1.00 39.92 ATOM 85 CA SER J 14 290.171 301.992 268.373 1.00 39.92 ATOM 86 C SER J 14 289.890 302.229 269.839 1.00 39.92 ATOM 87 O SER J 14 290.810 302.622 270.564 1.00 39.92 ATOM 88 CB SER J 14 290.256 303.347 267.686 1.00 39.92 ATOM 89 OG SER J 14 291.151 304.192 268.379 1.00 39.92 ATOM 90 N SER J 15 288.639 302.052 270.265 1.00 37.55 ATOM 91 CA SER J 15 288.136 302.361 271.605 1.00 37.55 ATOM 92 C SER J 15 288.326 303.824 271.992 1.00 37.55 ATOM 93 O SER J 15 288.376 304.149 273.179 1.00 37.55 ATOM 94 CB SER J 15 288.755 301.451 272.666 1.00 37.55 ATOM 95 OG SER J 15 288.396 300.105 272.439 1.00 37.55 ATOM 96 N THR J 16 288.441 304.712 271.012 1.00 39.02 ATOM 97 CA THR J 16 288.394 306.154 271.191 1.00 39.02 ATOM 98 C THR J 16 287.254 306.684 270.336 1.00 39.02 ATOM 99 O THR J 16 286.595 305.935 269.620 1.00 39.02 ATOM 100 CB THR J 16 289.700 306.830 270.772 1.00 39.02 ATOM 101 OG1 THR J 16 289.843 306.732 269.353 1.00 39.02 ATOM 102 CG2 THR J 16 290.877 306.160 271.397 1.00 39.02 ATOM 103 N SER J 17 287.065 307.995 270.360 1.00 39.68 ATOM 104 CA SER J 17 286.109 308.607 269.455 1.00 39.68 ATOM 105 C SER J 17 286.714 308.924 268.103 1.00 39.68 ATOM 106 O SER J 17 285.974 309.068 267.128 1.00 39.68 ATOM 107 CB SER J 17 285.552 309.890 270.062 1.00 39.68 ATOM 108 OG SER J 17 286.566 310.870 270.149 1.00 39.68 ATOM 109 N GLY J 18 288.033 309.014 268.019 1.00 38.00 ATOM 110 CA GLY J 18 288.675 309.426 266.795 1.00 38.00 ATOM 111 C GLY J 18 288.707 310.916 266.592 1.00 38.00 ATOM 112 O GLY J 18 289.002 311.370 265.483 1.00 38.00 ATOM 113 N HIS J 19 288.417 311.690 267.628 1.00 37.40 ATOM 114 CA HIS J 19 288.375 313.137 267.513 1.00 37.40 ATOM 115 C HIS J 19 289.789 313.678 267.395 1.00 37.40 ATOM 116 O HIS J 19 290.616 313.472 268.286 1.00 37.40 ATOM 117 CB HIS J 19 287.666 313.741 268.718 1.00 37.40 ATOM 118 CG HIS J 19 287.604 315.232 268.688 1.00 37.40 ATOM 119 ND1 HIS J 19 286.776 315.923 267.833 1.00 37.40 ATOM 120 CD2 HIS J 19 288.269 316.164 269.405 1.00 37.40 ATOM 121 CE1 HIS J 19 286.939 317.219 268.021 1.00 37.40 ATOM 122 NE2 HIS J 19 287.834 317.392 268.974 1.00 37.40 ATOM 123 N VAL J 20 290.069 314.357 266.291 1.00 35.48 ATOM 124 CA VAL J 20 291.381 314.916 266.009 1.00 35.48 ATOM 125 C VAL J 20 291.273 316.426 266.093 1.00 35.48 ATOM 126 O VAL J 20 290.343 317.015 265.536 1.00 35.48 ATOM 127 CB VAL J 20 291.886 314.480 264.625 1.00 35.48 ATOM 128 CG1 VAL J 20 293.244 315.073 264.335 1.00 35.48 ATOM 129 CG2 VAL J 20 291.935 312.985 264.543 1.00 35.48 ATOM 130 N GLN J 21 292.200 317.050 266.797 1.00 29.03 ATOM 131 CA GLN J 21 292.270 318.497 266.841 1.00 29.03 ATOM 132 C GLN J 21 293.710 318.932 266.652 1.00 29.03 ATOM 133 O GLN J 21 294.638 318.244 267.081 1.00 29.03 ATOM 134 CB GLN J 21 291.688 319.029 268.141 1.00 29.03 ATOM 135 CG GLN J 21 292.325 318.486 269.384 1.00 29.03 ATOM 136 CD GLN J 21 291.577 318.909 270.614 1.00 29.03 ATOM 137 OE1 GLN J 21 290.626 319.679 270.534 1.00 29.03 ATOM 138 NE2 GLN J 21 291.988 318.398 271.762 1.00 29.03 ATOM 139 N ARG J 22 293.883 320.061 265.978 1.00 29.74 ATOM 140 CA ARG J 22 295.210 320.531 265.623 1.00 29.74 ATOM 141 C ARG J 22 295.947 321.037 266.849 1.00 29.74 ATOM 142 O ARG J 22 295.379 321.740 267.684 1.00 29.74 ATOM 143 CB ARG J 22 295.109 321.638 264.580 1.00 29.74 ATOM 144 CG ARG J 22 296.449 322.148 264.127 1.00 29.74 ATOM 145 CD ARG J 22 296.352 323.188 263.041 1.00 29.74 ATOM 146 NE ARG J 22 297.679 323.705 262.721 1.00 29.74 ATOM 147 CZ ARG J 22 298.519 323.133 261.863 1.00 29.74 ATOM 148 NH1 ARG J 22 298.174 322.021 261.227 1.00 29.74 ATOM 149 NH2 ARG J 22 299.707 323.675 261.636 1.00 29.74 ATOM 150 N SER J 23 297.215 320.656 266.965 1.00 30.75 ATOM 151 CA SER J 23 298.064 321.144 268.042 1.00 30.75 ATOM 152 C SER J 23 298.308 322.633 267.878 1.00 30.75 ATOM 153 O SER J 23 299.024 323.058 266.967 1.00 30.75 ATOM 154 CB SER J 23 299.389 320.399 268.056 1.00 30.75 ATOM 155 OG SER J 23 300.260 320.972 269.010 1.00 30.75 ATOM 156 N LEU J 24 297.745 323.425 268.782 1.00 30.27 ATOM 157 CA LEU J 24 298.017 324.852 268.813 1.00 30.27 ATOM 158 C LEU J 24 299.430 325.167 269.279 1.00 30.27 ATOM 159 O LEU J 24 299.888 326.296 269.091 1.00 30.27 ATOM 160 CB LEU J 24 297.005 325.559 269.714 1.00 30.27 ATOM 161 CG LEU J 24 295.649 325.961 269.125 1.00 30.27 ATOM 162 CD1 LEU J 24 294.724 324.795 268.864 1.00 30.27 ATOM 163 CD2 LEU J 24 294.972 326.939 270.048 1.00 30.27 ATOM 164 N ALA J 25 300.128 324.200 269.871 1.00 37.39 ATOM 165 CA ALA J 25 301.483 324.433 270.342 1.00 37.39 ATOM 166 C ALA J 25 302.485 324.436 269.199 1.00 37.39 ATOM 167 O ALA J 25 303.441 325.218 269.212 1.00 37.39 ATOM 168 CB ALA J 25 301.859 323.373 271.370 1.00 37.39 ATOM 169 N SER J 26 302.286 323.579 268.204 1.00 38.03 ATOM 170 CA SER J 26 303.236 323.431 267.106 1.00 38.03 ATOM 171 C SER J 26 302.866 324.420 266.015 1.00 38.03 ATOM 172 O SER J 26 301.953 324.172 265.225 1.00 38.03 ATOM 173 CB SER J 26 303.219 322.013 266.561 1.00 38.03 ATOM 174 OG SER J 26 302.003 321.775 265.877 1.00 38.03 ATOM 175 N ASN J 27 303.560 325.532 265.970 1.00 48.51 ATOM 176 CA ASN J 27 303.291 326.503 264.920 1.00 48.51 ATOM 177 C ASN J 27 304.534 326.956 264.169 1.00 48.51 ATOM 178 O ASN J 27 304.467 327.158 262.955 1.00 48.51 ATOM 179 CB ASN J 27 302.557 327.708 265.520 1.00 48.51 ATOM 180 CG ASN J 27 303.271 328.289 266.718 1.00 48.51 ATOM 181 OD1 ASN J 27 304.346 327.831 267.105 1.00 48.51 ATOM 182 ND2 ASN J 27 302.674 329.310 267.315 1.00 48.51 ATOM 183 N ASN J 28 305.661 327.116 264.853 1.00 54.59 ATOM 184 CA ASN J 28 306.872 327.630 264.219 1.00 54.59 ATOM 185 C ASN J 28 308.109 326.877 264.685 1.00 54.59 ATOM 186 O ASN J 28 309.020 327.468 265.266 1.00 54.59 ATOM 187 CB ASN J 28 307.042 329.122 264.510 1.00 54.59 ATOM 188 CG ASN J 28 306.044 329.980 263.762 1.00 54.59 ATOM 189 OD1 ASN J 28 305.788 329.763 262.578 1.00 54.59 ATOM 190 ND2 ASN J 28 305.472 330.960 264.451 1.00 54.59 TER