HEADER TRANSCRIPTION 31-DEC-69 7UIO TITLE Mediator-PIC Early (Composite Model) COMPND MOL_ID: 35; COMPND 2 MOLECULE: Transcription initiation factor IIB; COMPND 3 CHAIN: AM, BM; EXPDTA ELECTRON MICROSCOPY DBREF 7UIO B 1 345 UNP P29055 TF2B_YEAST 1 345 SEQRES 1 BM 35 VAL LEU THR CYS PRO GLU CYS LYS VAL TYR PRO PRO LYS SEQRES 2 BM 35 ILE VAL GLU ARG PHE SER GLU GLY ASP VAL VAL CYS ALA SEQRES 3 BM 35 LEU CYS GLY LEU VAL LEU SER ASP LYS ATOM 1 N VAL B 21 260.617 13.537 95.370 1.00 9.64 ATOM 2 CA VAL B 21 261.907 14.087 95.770 1.00 9.64 ATOM 3 C VAL B 21 261.976 15.565 95.391 1.00 9.64 ATOM 4 O VAL B 21 261.542 15.960 94.310 1.00 9.64 ATOM 5 CB VAL B 21 263.068 13.287 95.138 1.00 9.64 ATOM 6 CG1 VAL B 21 262.938 13.249 93.623 1.00 9.64 ATOM 7 CG2 VAL B 21 264.410 13.863 95.562 1.00 9.64 ATOM 8 N LEU B 22 262.516 16.378 96.296 1.00 8.13 ATOM 9 CA LEU B 22 262.568 17.826 96.112 1.00 8.13 ATOM 10 C LEU B 22 263.949 18.312 96.521 1.00 8.13 ATOM 11 O LEU B 22 264.324 18.197 97.691 1.00 8.13 ATOM 12 CB LEU B 22 261.478 18.513 96.938 1.00 8.13 ATOM 13 CG LEU B 22 261.071 19.937 96.563 1.00 8.13 ATOM 14 CD1 LEU B 22 260.425 19.966 95.186 1.00 8.13 ATOM 15 CD2 LEU B 22 260.127 20.493 97.609 1.00 8.13 ATOM 16 N THR B 23 264.701 18.851 95.567 1.00 8.69 ATOM 17 CA THR B 23 266.082 19.262 95.794 1.00 8.69 ATOM 18 C THR B 23 266.297 20.685 95.305 1.00 8.69 ATOM 19 O THR B 23 265.657 21.137 94.355 1.00 8.69 ATOM 20 CB THR B 23 267.073 18.327 95.087 1.00 8.69 ATOM 21 OG1 THR B 23 266.718 18.202 93.707 1.00 8.69 ATOM 22 CG2 THR B 23 267.066 16.954 95.734 1.00 8.69 ATOM 23 N CYS B 24 267.219 21.379 95.963 1.00 8.52 ATOM 24 CA CYS B 24 267.586 22.723 95.542 1.00 8.52 ATOM 25 C CYS B 24 268.413 22.665 94.262 1.00 8.52 ATOM 26 O CYS B 24 269.407 21.936 94.211 1.00 8.52 ATOM 27 CB CYS B 24 268.380 23.428 96.640 1.00 8.52 ATOM 28 SG CYS B 24 268.812 25.130 96.245 1.00 8.52 ATOM 29 N PRO B 25 268.039 23.408 93.221 1.00 6.92 ATOM 30 CA PRO B 25 268.810 23.388 91.976 1.00 6.92 ATOM 31 C PRO B 25 270.034 24.293 91.971 1.00 6.92 ATOM 32 O PRO B 25 270.600 24.525 90.900 1.00 6.92 ATOM 33 CB PRO B 25 267.780 23.874 90.944 1.00 6.92 ATOM 34 CG PRO B 25 266.902 24.775 91.714 1.00 6.92 ATOM 35 CD PRO B 25 266.803 24.192 93.096 1.00 6.92 ATOM 36 N GLU B 26 270.445 24.812 93.114 1.00 6.92 ATOM 37 CA GLU B 26 271.626 25.664 93.180 1.00 6.92 ATOM 38 C GLU B 26 272.647 25.192 94.201 1.00 6.92 ATOM 39 O GLU B 26 273.851 25.309 93.952 1.00 6.92 ATOM 40 CB GLU B 26 271.218 27.109 93.491 1.00 6.92 ATOM 41 CG GLU B 26 270.510 27.805 92.345 1.00 6.92 ATOM 42 CD GLU B 26 269.942 29.148 92.742 1.00 6.92 ATOM 43 OE1 GLU B 26 270.326 29.658 93.816 1.00 6.92 ATOM 44 OE2 GLU B 26 269.115 29.694 91.984 1.00 6.92 ATOM 45 N CYS B 27 272.205 24.663 95.341 1.00 7.95 ATOM 46 CA CYS B 27 273.149 24.127 96.316 1.00 7.95 ATOM 47 C CYS B 27 273.672 22.763 95.896 1.00 7.95 ATOM 48 O CYS B 27 274.850 22.453 96.121 1.00 7.95 ATOM 49 CB CYS B 27 272.498 24.044 97.696 1.00 7.95 ATOM 50 SG CYS B 27 272.256 25.641 98.501 1.00 7.95 ATOM 51 N LYS B 28 272.822 21.942 95.280 1.00 7.24 ATOM 52 CA LYS B 28 273.203 20.617 94.791 1.00 7.24 ATOM 53 C LYS B 28 273.851 19.788 95.899 1.00 7.24 ATOM 54 O LYS B 28 274.930 19.214 95.733 1.00 7.24 ATOM 55 CB LYS B 28 274.125 20.728 93.578 1.00 7.24 ATOM 56 CG LYS B 28 273.591 21.628 92.481 1.00 7.24 ATOM 57 CD LYS B 28 274.675 21.971 91.477 1.00 7.24 ATOM 58 CE LYS B 28 274.105 22.729 90.291 1.00 7.24 ATOM 59 NZ LYS B 28 273.208 21.875 89.468 1.00 7.24 ATOM 60 N VAL B 29 273.183 19.735 97.047 1.00 15.25 ATOM 61 CA VAL B 29 273.678 19.035 98.224 1.00 15.25 ATOM 62 C VAL B 29 272.708 17.912 98.555 1.00 15.25 ATOM 63 O VAL B 29 271.495 18.137 98.655 1.00 15.25 ATOM 64 CB VAL B 29 273.842 19.989 99.424 1.00 15.25 ATOM 65 CG1 VAL B 29 273.926 19.205 100.722 1.00 15.25 ATOM 66 CG2 VAL B 29 275.071 20.857 99.240 1.00 15.25 ATOM 67 N TYR B 30 273.240 16.701 98.722 1.00 9.74 ATOM 68 CA TYR B 30 272.438 15.534 99.038 1.00 9.74 ATOM 69 C TYR B 30 272.885 14.947 100.370 1.00 9.74 ATOM 70 O TYR B 30 274.090 14.740 100.575 1.00 9.74 ATOM 71 CB TYR B 30 272.557 14.476 97.933 1.00 9.74 ATOM 72 CG TYR B 30 271.294 13.680 97.710 1.00 9.74 ATOM 73 CD1 TYR B 30 270.251 14.192 96.952 1.00 9.74 ATOM 74 CD2 TYR B 30 271.145 12.409 98.254 1.00 9.74 ATOM 75 CE1 TYR B 30 269.094 13.465 96.743 1.00 9.74 ATOM 76 CE2 TYR B 30 269.994 11.676 98.050 1.00 9.74 ATOM 77 CZ TYR B 30 268.973 12.207 97.292 1.00 9.74 ATOM 78 OH TYR B 30 267.822 11.479 97.089 1.00 9.74 ATOM 79 N PRO B 31 271.961 14.670 101.303 1.00 4.12 ATOM 80 CA PRO B 31 270.522 14.904 101.160 1.00 4.12 ATOM 81 C PRO B 31 270.153 16.372 101.343 1.00 4.12 ATOM 82 O PRO B 31 270.783 17.060 102.146 1.00 4.12 ATOM 83 CB PRO B 31 269.923 14.049 102.276 1.00 4.12 ATOM 84 CG PRO B 31 270.969 14.055 103.333 1.00 4.12 ATOM 85 CD PRO B 31 272.297 14.100 102.619 1.00 4.12 ATOM 86 N PRO B 32 269.149 16.845 100.604 1.00 7.49 ATOM 87 CA PRO B 32 268.779 18.260 100.692 1.00 7.49 ATOM 88 C PRO B 32 268.237 18.617 102.066 1.00 7.49 ATOM 89 O PRO B 32 267.580 17.817 102.733 1.00 7.49 ATOM 90 CB PRO B 32 267.698 18.410 99.613 1.00 7.49 ATOM 91 CG PRO B 32 267.148 17.040 99.436 1.00 7.49 ATOM 92 CD PRO B 32 268.280 16.095 99.686 1.00 7.49 ATOM 93 N LYS B 33 268.535 19.843 102.491 1.00 5.00 ATOM 94 CA LYS B 33 268.024 20.391 103.739 1.00 5.00 ATOM 95 C LYS B 33 266.902 21.362 103.404 1.00 5.00 ATOM 96 O LYS B 33 267.109 22.322 102.652 1.00 5.00 ATOM 97 CB LYS B 33 269.134 21.083 104.529 1.00 5.00 ATOM 98 CG LYS B 33 268.705 21.609 105.880 1.00 5.00 ATOM 99 CD LYS B 33 269.910 21.961 106.733 1.00 5.00 ATOM 100 CE LYS B 33 269.513 22.807 107.929 1.00 5.00 ATOM 101 NZ LYS B 33 268.502 22.124 108.779 1.00 5.00 ATOM 102 N ILE B 34 265.716 21.113 103.954 1.00 5.24 ATOM 103 CA ILE B 34 264.499 21.811 103.559 1.00 5.24 ATOM 104 C ILE B 34 263.671 22.109 104.801 1.00 5.24 ATOM 105 O ILE B 34 263.545 21.266 105.693 1.00 5.24 ATOM 106 CB ILE B 34 263.689 20.972 102.546 1.00 5.24 ATOM 107 CG1 ILE B 34 264.327 21.053 101.156 1.00 5.24 ATOM 108 CG2 ILE B 34 262.239 21.394 102.514 1.00 5.24 ATOM 109 CD1 ILE B 34 263.657 20.174 100.142 1.00 5.24 ATOM 110 N VAL B 35 263.107 23.316 104.859 1.00 3.90 ATOM 111 CA VAL B 35 262.216 23.721 105.934 1.00 3.90 ATOM 112 C VAL B 35 260.919 24.205 105.307 1.00 3.90 ATOM 113 O VAL B 35 260.942 24.965 104.330 1.00 3.90 ATOM 114 CB VAL B 35 262.838 24.826 106.811 1.00 3.90 ATOM 115 CG1 VAL B 35 261.861 25.273 107.878 1.00 3.90 ATOM 116 CG2 VAL B 35 264.128 24.333 107.443 1.00 3.90 ATOM 117 N GLU B 36 259.790 23.766 105.851 1.00 11.31 ATOM 118 CA GLU B 36 258.488 24.195 105.359 1.00 11.31 ATOM 119 C GLU B 36 257.973 25.339 106.221 1.00 11.31 ATOM 120 O GLU B 36 257.966 25.250 107.453 1.00 11.31 ATOM 121 CB GLU B 36 257.491 23.029 105.329 1.00 11.31 ATOM 122 CG GLU B 36 256.990 22.541 106.679 1.00 11.31 ATOM 123 CD GLU B 36 255.912 21.488 106.556 1.00 11.31 ATOM 124 OE1 GLU B 36 256.189 20.420 105.962 1.00 11.31 ATOM 125 OE2 GLU B 36 254.788 21.721 107.048 1.00 11.31 ATOM 126 N ARG B 37 257.597 26.436 105.567 1.00 13.22 ATOM 127 CA ARG B 37 256.987 27.587 106.222 1.00 13.22 ATOM 128 C ARG B 37 255.483 27.440 106.040 1.00 13.22 ATOM 129 O ARG B 37 254.938 27.756 104.981 1.00 13.22 ATOM 130 CB ARG B 37 257.506 28.890 105.622 1.00 13.22 ATOM 131 CG ARG B 37 259.015 29.047 105.689 1.00 13.22 ATOM 132 CD ARG B 37 259.550 28.652 107.052 1.00 13.22 ATOM 133 NE ARG B 37 259.515 29.756 107.998 1.00 13.22 ATOM 134 CZ ARG B 37 258.972 29.687 109.208 1.00 13.22 ATOM 135 NH1 ARG B 37 259.008 30.755 109.999 1.00 13.22 ATOM 136 NH2 ARG B 37 258.394 28.581 109.642 1.00 13.22 ATOM 137 N PHE B 38 254.818 26.927 107.079 1.00 20.20 ATOM 138 CA PHE B 38 253.385 26.670 106.989 1.00 20.20 ATOM 139 C PHE B 38 252.594 27.970 107.000 1.00 20.20 ATOM 140 O PHE B 38 251.643 28.127 106.225 1.00 20.20 ATOM 141 CB PHE B 38 252.949 25.759 108.136 1.00 20.20 ATOM 142 CG PHE B 38 251.536 25.275 108.022 1.00 20.20 ATOM 143 CD1 PHE B 38 250.999 24.953 106.786 1.00 20.20 ATOM 144 CD2 PHE B 38 250.747 25.135 109.152 1.00 20.20 ATOM 145 CE1 PHE B 38 249.695 24.506 106.678 1.00 20.20 ATOM 146 CE2 PHE B 38 249.443 24.689 109.049 1.00 20.20 ATOM 147 CZ PHE B 38 248.918 24.373 107.812 1.00 20.20 ATOM 148 N SER B 39 252.974 28.913 107.859 1.00 13.47 ATOM 149 CA SER B 39 252.260 30.178 107.976 1.00 13.47 ATOM 150 C SER B 39 252.376 31.041 106.732 1.00 13.47 ATOM 151 O SER B 39 251.641 32.024 106.614 1.00 13.47 ATOM 152 CB SER B 39 252.763 30.950 109.194 1.00 13.47 ATOM 153 OG SER B 39 254.169 31.121 109.141 1.00 13.47 ATOM 154 N GLU B 40 253.274 30.708 105.808 1.00 12.65 ATOM 155 CA GLU B 40 253.358 31.393 104.527 1.00 12.65 ATOM 156 C GLU B 40 253.053 30.499 103.340 1.00 12.65 ATOM 157 O GLU B 40 253.043 30.990 102.209 1.00 12.65 ATOM 158 CB GLU B 40 254.750 32.007 104.329 1.00 12.65 ATOM 159 CG GLU B 40 254.956 33.328 105.039 1.00 12.65 ATOM 160 CD GLU B 40 255.478 33.156 106.448 1.00 12.65 ATOM 161 OE1 GLU B 40 255.511 32.008 106.935 1.00 12.65 ATOM 162 OE2 GLU B 40 255.849 34.173 107.070 1.00 12.65 ATOM 163 N GLY B 41 252.801 29.210 103.562 1.00 8.46 ATOM 164 CA GLY B 41 252.549 28.297 102.468 1.00 8.46 ATOM 165 C GLY B 41 253.722 28.181 101.517 1.00 8.46 ATOM 166 O GLY B 41 253.549 28.302 100.302 1.00 8.46 ATOM 167 N ASP B 42 254.923 27.967 102.056 1.00 10.53 ATOM 168 CA ASP B 42 256.129 27.907 101.244 1.00 10.53 ATOM 169 C ASP B 42 257.017 26.752 101.691 1.00 10.53 ATOM 170 O ASP B 42 256.914 26.257 102.811 1.00 10.53 ATOM 171 CB ASP B 42 256.912 29.223 101.314 1.00 10.53 ATOM 172 CG ASP B 42 256.551 30.171 100.194 1.00 10.53 ATOM 173 OD1 ASP B 42 256.090 29.694 99.142 1.00 10.53 ATOM 174 OD2 ASP B 42 256.728 31.394 100.366 1.00 10.53 ATOM 175 N VAL B 43 257.884 26.321 100.781 1.00 6.82 ATOM 176 CA VAL B 43 258.935 25.350 101.074 1.00 6.82 ATOM 177 C VAL B 43 260.259 26.005 100.705 1.00 6.82 ATOM 178 O VAL B 43 260.448 26.425 99.559 1.00 6.82 ATOM 179 CB VAL B 43 258.729 24.034 100.308 1.00 6.82 ATOM 180 CG1 VAL B 43 259.959 23.164 100.414 1.00 6.82 ATOM 181 CG2 VAL B 43 257.516 23.298 100.844 1.00 6.82 ATOM 182 N VAL B 44 261.173 26.086 101.671 1.00 5.23 ATOM 183 CA VAL B 44 262.348 26.943 101.568 1.00 5.23 ATOM 184 C VAL B 44 263.593 26.121 101.873 1.00 5.23 ATOM 185 O VAL B 44 263.636 25.392 102.873 1.00 5.23 ATOM 186 CB VAL B 44 262.237 28.142 102.524 1.00 5.23 ATOM 187 CG1 VAL B 44 263.581 28.794 102.742 1.00 5.23 ATOM 188 CG2 VAL B 44 261.247 29.146 101.981 1.00 5.23 ATOM 189 N CYS B 45 264.601 26.232 101.009 1.00 5.54 ATOM 190 CA CYS B 45 265.906 25.655 101.298 1.00 5.54 ATOM 191 C CYS B 45 266.562 26.413 102.445 1.00 5.54 ATOM 192 O CYS B 45 266.554 27.643 102.471 1.00 5.54 ATOM 193 CB CYS B 45 266.790 25.703 100.054 1.00 5.54 ATOM 194 SG CYS B 45 268.413 24.941 100.252 1.00 5.54 ATOM 195 N ALA B 46 267.139 25.677 103.389 1.00 4.48 ATOM 196 CA ALA B 46 267.657 26.291 104.603 1.00 4.48 ATOM 197 C ALA B 46 269.061 26.848 104.444 1.00 4.48 ATOM 198 O ALA B 46 269.640 27.307 105.434 1.00 4.48 ATOM 199 CB ALA B 46 267.640 25.281 105.752 1.00 4.48 ATOM 200 N LEU B 47 269.624 26.815 103.238 1.00 5.95 ATOM 201 CA LEU B 47 270.980 27.283 103.001 1.00 5.95 ATOM 202 C LEU B 47 271.034 28.528 102.126 1.00 5.95 ATOM 203 O LEU B 47 271.625 29.534 102.526 1.00 5.95 ATOM 204 CB LEU B 47 271.809 26.162 102.367 1.00 5.95 ATOM 205 CG LEU B 47 271.714 24.797 103.055 1.00 5.95 ATOM 206 CD1 LEU B 47 272.333 23.715 102.193 1.00 5.95 ATOM 207 CD2 LEU B 47 272.370 24.836 104.423 1.00 5.95 ATOM 208 N CYS B 48 270.435 28.487 100.942 1.00 15.25 ATOM 209 CA CYS B 48 270.392 29.648 100.063 1.00 15.25 ATOM 210 C CYS B 48 269.124 30.474 100.221 1.00 15.25 ATOM 211 O CYS B 48 269.000 31.512 99.565 1.00 15.25 ATOM 212 CB CYS B 48 270.529 29.214 98.603 1.00 15.25 ATOM 213 SG CYS B 48 269.494 27.806 98.162 1.00 15.25 ATOM 214 N GLY B 49 268.181 30.034 101.052 1.00 6.37 ATOM 215 CA GLY B 49 266.935 30.745 101.210 1.00 6.37 ATOM 216 C GLY B 49 265.991 30.664 100.038 1.00 6.37 ATOM 217 O GLY B 49 264.957 31.337 100.049 1.00 6.37 ATOM 218 N LEU B 50 266.299 29.859 99.026 1.00 4.75 ATOM 219 CA LEU B 50 265.466 29.793 97.836 1.00 4.75 ATOM 220 C LEU B 50 264.132 29.125 98.144 1.00 4.75 ATOM 221 O LEU B 50 264.049 28.200 98.955 1.00 4.75 ATOM 222 CB LEU B 50 266.192 29.036 96.724 1.00 4.75 ATOM 223 CG LEU B 50 265.493 28.960 95.371 1.00 4.75 ATOM 224 CD1 LEU B 50 265.053 30.332 94.920 1.00 4.75 ATOM 225 CD2 LEU B 50 266.399 28.333 94.335 1.00 4.75 ATOM 226 N VAL B 51 263.081 29.600 97.478 1.00 3.41 ATOM 227 CA VAL B 51 261.721 29.108 97.687 1.00 3.41 ATOM 228 C VAL B 51 261.428 28.059 96.626 1.00 3.41 ATOM 229 O VAL B 51 261.506 28.339 95.424 1.00 3.41 ATOM 230 CB VAL B 51 260.706 30.260 97.628 1.00 3.41 ATOM 231 CG1 VAL B 51 259.313 29.727 97.366 1.00 3.41 ATOM 232 CG2 VAL B 51 260.751 31.070 98.912 1.00 3.41 ATOM 233 N LEU B 52 261.076 26.851 97.067 1.00 4.00 ATOM 234 CA LEU B 52 260.958 25.707 96.162 1.00 4.00 ATOM 235 C LEU B 52 259.535 25.526 95.644 1.00 4.00 ATOM 236 O LEU B 52 259.303 25.540 94.431 1.00 4.00 ATOM 237 CB LEU B 52 261.435 24.436 96.871 1.00 4.00 ATOM 238 CG LEU B 52 262.919 24.395 97.233 1.00 4.00 ATOM 239 CD1 LEU B 52 263.248 23.149 98.032 1.00 4.00 ATOM 240 CD2 LEU B 52 263.777 24.483 95.985 1.00 4.00 ATOM 241 N SER B 53 258.572 25.346 96.548 1.00 1.71 ATOM 242 CA SER B 53 257.176 25.154 96.181 1.00 1.71 ATOM 243 C SER B 53 256.293 26.046 97.035 1.00 1.71 ATOM 244 O SER B 53 256.504 26.169 98.245 1.00 1.71 ATOM 245 CB SER B 53 256.756 23.692 96.351 1.00 1.71 ATOM 246 OG SER B 53 256.561 23.374 97.717 1.00 1.71 ATOM 247 N ASP B 54 255.294 26.656 96.409 1.00 1.76 ATOM 248 CA ASP B 54 254.397 27.582 97.083 1.00 1.76 ATOM 249 C ASP B 54 253.000 26.986 97.210 1.00 1.76 ATOM 250 O ASP B 54 252.650 26.017 96.527 1.00 1.76 ATOM 251 CB ASP B 54 254.326 28.917 96.339 1.00 1.76 ATOM 252 CG ASP B 54 253.949 28.757 94.883 1.00 1.76 ATOM 253 OD1 ASP B 54 253.839 27.605 94.417 1.00 1.76 ATOM 254 OD2 ASP B 54 253.758 29.783 94.200 1.00 1.76 ATOM 255 N LYS B 55 252.215 27.580 98.105 1.00 1.50 ATOM 256 CA LYS B 55 250.815 27.210 98.303 1.00 1.50 ATOM 257 C LYS B 55 250.652 25.744 98.677 1.00 1.50 ATOM 258 O LYS B 55 250.284 25.421 99.807 1.00 1.50 ATOM 259 CB LYS B 55 250.003 27.532 97.046 1.00 1.50 ATOM 260 CG LYS B 55 250.222 28.946 96.531 1.00 1.50 ATOM 261 CD LYS B 55 249.318 29.263 95.359 1.00 1.50 ATOM 262 CE LYS B 55 249.476 28.243 94.251 1.00 1.50 ATOM 263 NZ LYS B 55 250.811 28.338 93.604 1.00 1.50 TER