HEADER SPLICING 31-DEC-69 7ABG TITLE Human pre-Bact-1 spliceosome COMPND MOL_ID: 4; COMPND 2 MOLECULE: Splicing factor 3A subunit 2; COMPND 3 CHAIN: F; EXPDTA ELECTRON MICROSCOPY DBREF 7ABG F 1 464 UNP Q15428 SF3A2_HUMAN 1 464 SEQRES 1 F 49 TYR PHE MET LYS ASN HIS LEU GLY SER TYR GLU CYS LYS SEQRES 2 F 49 LEU CYS LEU THR LEU HIS ASN ASN GLU GLY SER TYR LEU SEQRES 3 F 49 ALA HIS THR GLN GLY LYS LYS HIS GLN THR ASN LEU ALA SEQRES 4 F 49 ARG ARG ALA ALA LYS GLU ALA LYS GLU ALA ATOM 1 N TYR F 45 248.243 249.973 264.474 1.00124.00 ATOM 2 CA TYR F 45 247.615 249.394 265.654 1.00124.00 ATOM 3 C TYR F 45 246.624 248.285 265.330 1.00124.00 ATOM 4 O TYR F 45 246.184 247.587 266.248 1.00124.00 ATOM 5 CB TYR F 45 246.898 250.476 266.465 1.00 99.99 ATOM 6 N PHE F 46 246.265 248.105 264.062 1.00156.71 ATOM 7 CA PHE F 46 245.308 247.069 263.690 1.00156.71 ATOM 8 C PHE F 46 245.996 245.708 263.675 1.00156.71 ATOM 9 O PHE F 46 247.000 245.519 262.981 1.00156.71 ATOM 10 CB PHE F 46 244.687 247.378 262.327 1.00 99.99 ATOM 11 N MET F 47 245.453 244.762 264.435 1.00187.03 ATOM 12 CA MET F 47 245.986 243.410 264.495 1.00187.03 ATOM 13 C MET F 47 244.846 242.417 264.334 1.00187.03 ATOM 14 O MET F 47 243.745 242.638 264.847 1.00187.03 ATOM 15 CB MET F 47 246.734 243.186 265.811 1.00 99.99 ATOM 16 N LYS F 48 245.116 241.328 263.625 1.00187.43 ATOM 17 CA LYS F 48 244.119 240.305 263.349 1.00187.43 ATOM 18 C LYS F 48 244.146 239.237 264.434 1.00187.43 ATOM 19 O LYS F 48 245.211 238.888 264.951 1.00187.43 ATOM 20 CB LYS F 48 244.358 239.682 261.972 1.00 99.99 ATOM 21 N ASN F 49 242.969 238.723 264.774 1.00145.21 ATOM 22 CA ASN F 49 242.831 237.666 265.760 1.00145.21 ATOM 23 C ASN F 49 242.842 236.311 265.060 1.00145.21 ATOM 24 O ASN F 49 242.907 236.220 263.830 1.00145.21 ATOM 25 CB ASN F 49 241.547 237.854 266.570 1.00 99.99 ATOM 26 N HIS F 50 242.774 235.240 265.845 1.00140.91 ATOM 27 CA HIS F 50 242.788 233.884 265.312 1.00140.91 ATOM 28 C HIS F 50 241.391 233.323 265.078 1.00140.91 ATOM 29 O HIS F 50 241.260 232.132 264.775 1.00140.91 ATOM 30 CB HIS F 50 243.554 232.947 266.247 1.00 99.99 ATOM 31 N LEU F 51 240.347 234.148 265.208 1.00133.86 ATOM 32 CA LEU F 51 238.983 233.678 265.005 1.00133.86 ATOM 33 C LEU F 51 238.205 234.544 264.020 1.00133.86 ATOM 34 O LEU F 51 236.971 234.467 263.994 1.00133.86 ATOM 35 CB LEU F 51 238.231 233.624 266.337 1.00 99.99 ATOM 36 N GLY F 52 238.879 235.361 263.218 1.00120.31 ATOM 37 CA GLY F 52 238.188 236.219 262.275 1.00120.31 ATOM 38 C GLY F 52 237.752 237.547 262.848 1.00120.31 ATOM 39 O GLY F 52 236.701 238.073 262.461 1.00120.31 ATOM 40 N SER F 53 238.533 238.108 263.767 1.00119.58 ATOM 41 CA SER F 53 238.214 239.381 264.394 1.00119.58 ATOM 42 C SER F 53 239.453 240.264 264.408 1.00119.58 ATOM 43 O SER F 53 240.558 239.834 264.067 1.00119.58 ATOM 44 CB SER F 53 237.679 239.162 265.811 1.00 99.99 ATOM 45 N TYR F 54 239.253 241.516 264.804 1.00132.42 ATOM 46 CA TYR F 54 240.326 242.490 264.914 1.00132.42 ATOM 47 C TYR F 54 240.583 242.815 266.379 1.00132.42 ATOM 48 O TYR F 54 239.693 242.688 267.226 1.00132.42 ATOM 49 CB TYR F 54 239.984 243.757 264.129 1.00 99.99 ATOM 50 N GLU F 55 241.811 243.234 266.671 1.00167.48 ATOM 51 CA GLU F 55 242.204 243.620 268.020 1.00167.48 ATOM 52 C GLU F 55 243.143 244.813 267.932 1.00167.48 ATOM 53 O GLU F 55 244.107 244.789 267.164 1.00167.48 ATOM 54 CB GLU F 55 242.861 242.443 268.744 1.00 99.99 ATOM 55 N CYS F 56 242.855 245.848 268.714 1.00162.37 ATOM 56 CA CYS F 56 243.646 247.071 268.702 1.00162.37 ATOM 57 C CYS F 56 244.830 246.915 269.648 1.00162.37 ATOM 58 O CYS F 56 244.652 246.575 270.822 1.00162.37 ATOM 59 CB CYS F 56 242.784 248.272 269.092 1.00 99.99 ATOM 60 N LYS F 57 246.036 247.160 269.135 1.00153.51 ATOM 61 CA LYS F 57 247.233 247.054 269.961 1.00153.51 ATOM 62 C LYS F 57 247.451 248.318 270.781 1.00153.51 ATOM 63 O LYS F 57 247.839 248.251 271.952 1.00153.51 ATOM 64 CB LYS F 57 248.460 246.772 269.091 1.00 99.99 ATOM 65 N LEU F 58 247.208 249.485 270.177 1.00142.36 ATOM 66 CA LEU F 58 247.395 250.742 270.895 1.00142.36 ATOM 67 C LEU F 58 246.279 250.990 271.899 1.00142.36 ATOM 68 O LEU F 58 246.540 251.475 273.006 1.00142.36 ATOM 69 CB LEU F 58 247.479 251.912 269.913 1.00 99.99 ATOM 70 N CYS F 59 245.035 250.665 271.538 1.00129.47 ATOM 71 CA CYS F 59 243.927 250.875 272.463 1.00129.47 ATOM 72 C CYS F 59 243.831 249.753 273.489 1.00129.47 ATOM 73 O CYS F 59 243.165 249.924 274.518 1.00129.47 ATOM 74 CB CYS F 59 242.607 250.996 271.700 1.00 99.99 ATOM 75 N LEU F 60 244.484 248.614 273.214 1.00120.00 ATOM 76 CA LEU F 60 244.514 247.422 274.078 1.00120.00 ATOM 77 C LEU F 60 243.109 246.898 274.371 1.00120.00 ATOM 78 O LEU F 60 242.802 246.459 275.481 1.00120.00 ATOM 79 CB LEU F 60 245.236 247.731 275.391 1.00 99.99 ATOM 80 N THR F 61 242.249 246.941 273.357 1.00149.15 ATOM 81 CA THR F 61 240.873 246.486 273.471 1.00149.15 ATOM 82 C THR F 61 240.527 245.585 272.294 1.00149.15 ATOM 83 O THR F 61 241.280 245.487 271.322 1.00149.15 ATOM 84 CB THR F 61 239.890 247.671 273.528 1.00 99.99 ATOM 85 N LEU F 62 239.379 244.924 272.395 1.00154.26 ATOM 86 CA LEU F 62 238.911 244.025 271.352 1.00154.26 ATOM 87 C LEU F 62 237.970 244.748 270.394 1.00154.26 ATOM 88 O LEU F 62 237.367 245.772 270.725 1.00154.26 ATOM 89 CB LEU F 62 238.213 242.809 271.964 1.00 99.99 ATOM 90 N HIS F 63 237.849 244.194 269.189 1.00124.00 ATOM 91 CA HIS F 63 236.938 244.717 268.182 1.00124.00 ATOM 92 C HIS F 63 236.068 243.578 267.683 1.00124.00 ATOM 93 O HIS F 63 236.585 242.533 267.275 1.00124.00 ATOM 94 CB HIS F 63 237.720 245.370 267.040 1.00 99.99 ATOM 95 N ASN F 64 234.748 243.779 267.721 1.00 87.45 ATOM 96 CA ASN F 64 233.827 242.705 267.360 1.00 87.45 ATOM 97 C ASN F 64 233.768 242.501 265.853 1.00 87.45 ATOM 98 O ASN F 64 233.769 241.361 265.375 1.00 87.45 ATOM 99 CB ASN F 64 232.427 242.996 267.902 1.00 99.99 ATOM 100 N ASN F 65 233.724 243.585 265.085 1.00 59.54 ATOM 101 CA ASN F 65 233.598 243.502 263.636 1.00 59.54 ATOM 102 C ASN F 65 234.680 244.372 263.007 1.00 59.54 ATOM 103 O ASN F 65 235.519 244.956 263.700 1.00 59.54 ATOM 104 CB ASN F 65 232.200 243.936 263.194 1.00 99.99 ATOM 105 N GLU F 66 234.661 244.452 261.674 1.00 56.45 ATOM 106 CA GLU F 66 235.634 245.273 260.963 1.00 56.45 ATOM 107 C GLU F 66 235.332 246.754 261.136 1.00 56.45 ATOM 108 O GLU F 66 236.239 247.595 261.089 1.00 56.45 ATOM 109 CB GLU F 66 235.659 244.909 259.477 1.00 99.99 ATOM 110 N GLY F 67 234.058 247.095 261.337 1.00 69.72 ATOM 111 CA GLY F 67 233.692 248.475 261.602 1.00 69.72 ATOM 112 C GLY F 67 234.060 248.950 262.990 1.00 69.72 ATOM 113 O GLY F 67 234.140 250.162 263.218 1.00 69.72 ATOM 114 N SER F 68 234.283 248.021 263.925 1.00 91.77 ATOM 115 CA SER F 68 234.656 248.412 265.279 1.00 91.77 ATOM 116 C SER F 68 236.098 248.897 265.341 1.00 91.77 ATOM 117 O SER F 68 236.396 249.887 266.019 1.00 91.77 ATOM 118 CB SER F 68 234.455 247.245 266.248 1.00 99.99 ATOM 119 N TYR F 69 237.006 248.215 264.641 1.00 92.79 ATOM 120 CA TYR F 69 238.395 248.654 264.596 1.00 92.79 ATOM 121 C TYR F 69 238.553 249.888 263.714 1.00 92.79 ATOM 122 O TYR F 69 239.482 250.680 263.900 1.00 92.79 ATOM 123 CB TYR F 69 239.298 247.527 264.093 1.00 99.99 ATOM 124 N LEU F 70 237.651 250.063 262.750 1.00107.93 ATOM 125 CA LEU F 70 237.661 251.227 261.874 1.00107.93 ATOM 126 C LEU F 70 237.025 252.455 262.516 1.00107.93 ATOM 127 O LEU F 70 237.075 253.540 261.927 1.00107.93 ATOM 128 CB LEU F 70 236.942 250.916 260.561 1.00 99.99 ATOM 129 N ALA F 71 236.433 252.312 263.699 1.00135.67 ATOM 130 CA ALA F 71 235.832 253.431 264.411 1.00135.67 ATOM 131 C ALA F 71 236.616 253.844 265.647 1.00135.67 ATOM 132 O ALA F 71 236.191 254.767 266.348 1.00135.67 ATOM 133 CB ALA F 71 234.390 253.094 264.812 1.00135.67 ATOM 134 N HIS F 72 237.726 253.135 265.879 1.00139.44 ATOM 135 CA HIS F 72 238.666 253.392 267.001 1.00139.44 ATOM 136 C HIS F 72 239.910 254.077 266.424 1.00139.44 ATOM 137 O HIS F 72 240.993 253.956 267.029 1.00139.44 ATOM 138 CB HIS F 72 239.005 252.085 267.730 1.00 99.99 ATOM 139 N THR F 73 239.744 254.722 265.265 1.00184.33 ATOM 140 CA THR F 73 240.833 255.476 264.588 1.00184.33 ATOM 141 C THR F 73 240.674 256.949 264.972 1.00184.33 ATOM 142 O THR F 73 241.639 257.530 265.508 1.00184.33 ATOM 143 CB THR F 73 240.789 255.270 263.068 1.00 99.99 ATOM 144 N GLN F 74 239.493 257.516 264.705 1.00199.59 ATOM 145 CA GLN F 74 239.187 258.917 265.098 1.00199.59 ATOM 146 C GLN F 74 239.062 258.922 266.625 1.00199.59 ATOM 147 O GLN F 74 239.518 259.893 267.261 1.00199.59 ATOM 148 CB GLN F 74 237.894 259.390 264.432 1.00 99.99 ATOM 149 N GLY F 75 238.460 257.859 267.168 1.00207.06 ATOM 150 CA GLY F 75 238.316 257.672 268.625 1.00207.06 ATOM 151 C GLY F 75 239.472 256.851 269.174 1.00207.06 ATOM 152 O GLY F 75 240.419 256.603 268.399 1.00207.06 ATOM 153 N LYS F 76 239.393 256.430 270.445 1.00191.63 ATOM 154 CA LYS F 76 240.475 255.636 271.097 1.00191.63 ATOM 155 C LYS F 76 241.806 256.352 270.848 1.00191.63 ATOM 156 O LYS F 76 242.697 255.749 270.216 1.00191.63 ATOM 157 CB LYS F 76 240.499 254.207 270.547 1.00 99.99 ATOM 158 N LYS F 77 241.905 257.596 271.325 1.00189.03 ATOM 159 CA LYS F 77 243.077 258.484 271.100 1.00189.03 ATOM 160 C LYS F 77 244.367 257.939 271.727 1.00189.03 ATOM 161 O LYS F 77 245.119 258.761 272.286 1.00189.03 ATOM 162 CB LYS F 77 242.780 259.892 271.625 1.00 99.99 ATOM 163 N HIS F 78 244.632 256.630 271.649 1.00163.74 ATOM 164 CA HIS F 78 245.909 256.178 272.183 1.00163.74 ATOM 165 C HIS F 78 247.107 256.823 271.497 1.00163.74 ATOM 166 O HIS F 78 248.229 256.684 271.994 1.00163.74 ATOM 167 CB HIS F 78 246.029 254.657 272.070 1.00 99.99 ATOM 168 N GLN F 79 246.900 257.510 270.371 1.00134.98 ATOM 169 CA GLN F 79 248.005 258.176 269.689 1.00134.98 ATOM 170 C GLN F 79 248.494 259.390 270.469 1.00134.98 ATOM 171 O GLN F 79 249.688 259.712 270.426 1.00134.98 ATOM 172 CB GLN F 79 247.589 258.597 268.278 1.00 99.99 ATOM 173 N THR F 80 247.600 260.069 271.183 1.00112.66 ATOM 174 CA THR F 80 247.983 261.183 272.038 1.00112.66 ATOM 175 C THR F 80 248.675 260.735 273.318 1.00112.66 ATOM 176 O THR F 80 249.389 261.534 273.931 1.00112.66 ATOM 177 CB THR F 80 246.766 262.042 272.425 1.00 99.99 ATOM 178 N ASN F 81 248.479 259.484 273.733 1.00100.21 ATOM 179 CA ASN F 81 249.164 258.933 274.893 1.00100.21 ATOM 180 C ASN F 81 250.559 258.421 274.567 1.00100.21 ATOM 181 O ASN F 81 251.281 258.010 275.482 1.00100.21 ATOM 182 CB ASN F 81 248.344 257.800 275.511 1.00 99.99 ATOM 183 N LEU F 82 250.954 258.432 273.293 1.00 80.53 ATOM 184 CA LEU F 82 252.297 258.031 272.893 1.00 80.53 ATOM 185 C LEU F 82 253.313 259.156 273.027 1.00 80.53 ATOM 186 O LEU F 82 254.497 258.936 272.742 1.00 80.53 ATOM 187 CB LEU F 82 252.296 257.522 271.451 1.00 99.99 ATOM 188 N ALA F 83 252.882 260.347 273.457 1.00 61.62 ATOM 189 CA ALA F 83 253.808 261.464 273.628 1.00 61.62 ATOM 190 C ALA F 83 254.771 261.227 274.784 1.00 61.62 ATOM 191 O ALA F 83 255.922 261.671 274.730 1.00 61.62 ATOM 192 CB ALA F 83 253.031 262.762 273.842 1.00 61.62 ATOM 193 N ARG F 84 254.330 260.506 275.821 1.00 57.90 ATOM 194 CA ARG F 84 255.224 260.168 276.924 1.00 57.90 ATOM 195 C ARG F 84 256.299 259.181 276.480 1.00 57.90 ATOM 196 O ARG F 84 257.468 259.314 276.864 1.00 57.90 ATOM 197 CB ARG F 84 254.432 259.589 278.098 1.00 99.99 ATOM 198 N ARG F 85 255.930 258.202 275.649 1.00 60.67 ATOM 199 CA ARG F 85 256.918 257.274 275.109 1.00 60.67 ATOM 200 C ARG F 85 257.852 257.959 274.117 1.00 60.67 ATOM 201 O ARG F 85 259.034 257.606 274.038 1.00 60.67 ATOM 202 CB ARG F 85 256.226 256.087 274.436 1.00 99.99 ATOM 203 N ALA F 86 257.344 258.941 273.367 1.00 61.44 ATOM 204 CA ALA F 86 258.201 259.699 272.459 1.00 61.44 ATOM 205 C ALA F 86 259.162 260.610 273.215 1.00 61.44 ATOM 206 O ALA F 86 260.288 260.831 272.759 1.00 61.44 ATOM 207 CB ALA F 86 257.347 260.516 271.489 1.00 61.44 ATOM 208 N ALA F 87 258.739 261.144 274.363 1.00 60.39 ATOM 209 CA ALA F 87 259.640 261.945 275.181 1.00 60.39 ATOM 210 C ALA F 87 260.647 261.076 275.924 1.00 60.39 ATOM 211 O ALA F 87 261.774 261.516 276.182 1.00 60.39 ATOM 212 CB ALA F 87 258.842 262.795 276.169 1.00 60.39 ATOM 213 N LYS F 88 260.260 259.847 276.282 1.00 54.71 ATOM 214 CA LYS F 88 261.205 258.934 276.919 1.00 54.71 ATOM 215 C LYS F 88 262.217 258.388 275.920 1.00 54.71 ATOM 216 O LYS F 88 263.370 258.132 276.287 1.00 54.71 ATOM 217 CB LYS F 88 260.463 257.779 277.593 1.00 99.99 ATOM 218 N GLU F 89 261.811 258.203 274.661 1.00 58.02 ATOM 219 CA GLU F 89 262.744 257.717 273.650 1.00 58.02 ATOM 220 C GLU F 89 263.695 258.819 273.199 1.00 58.02 ATOM 221 O GLU F 89 264.883 258.566 272.969 1.00 58.02 ATOM 222 CB GLU F 89 261.985 257.153 272.447 1.00 99.99 ATOM 223 N ALA F 90 263.193 260.046 273.066 1.00 51.57 ATOM 224 CA ALA F 90 264.007 261.180 272.647 1.00 51.57 ATOM 225 C ALA F 90 263.705 262.366 273.549 1.00 51.57 ATOM 226 O ALA F 90 262.551 262.797 273.646 1.00 51.57 ATOM 227 CB ALA F 90 263.741 261.545 271.183 1.00 51.57 ATOM 228 N LYS F 91 264.744 262.895 274.200 1.00 48.16 ATOM 229 CA LYS F 91 264.560 264.009 275.122 1.00 48.16 ATOM 230 C LYS F 91 264.333 265.332 274.404 1.00 48.16 ATOM 231 O LYS F 91 263.825 266.277 275.018 1.00 48.16 ATOM 232 CB LYS F 91 265.766 264.138 276.054 1.00 99.99 ATOM 233 N GLU F 92 264.694 265.426 273.127 1.00 33.77 ATOM 234 CA GLU F 92 264.524 266.641 272.347 1.00 33.77 ATOM 235 C GLU F 92 263.248 266.566 271.520 1.00 33.77 ATOM 236 O GLU F 92 262.723 265.484 271.243 1.00 33.77 ATOM 237 CB GLU F 92 265.737 266.872 271.443 1.00 99.99 ATOM 238 N ALA F 93 262.754 267.736 271.131 1.00 29.42 ATOM 239 CA ALA F 93 261.533 267.828 270.339 1.00 29.42 ATOM 240 C ALA F 93 261.833 267.692 268.851 1.00 29.42 ATOM 241 O ALA F 93 261.859 266.585 268.310 1.00 29.42 ATOM 242 CB ALA F 93 260.817 269.140 270.620 1.00 29.42 TER