HEADER TRANSCRIPTION/DNA 03-JAN-96 1LBG TITLE LACTOSE OPERON REPRESSOR BOUND TO 21-BASE PAIR SYMMETRIC OPERATOR TITLE 2 DNA, ALPHA CARBONS ONLY COMPND MOL_ID: 2; COMPND 2 MOLECULE: PROTEIN (LACTOSE OPERON REPRESSOR); COMPND 3 CHAIN: A, B, C, D; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 4.80 ANGSTORMS DBREF 1LBG C 1 360 UNP P03023 LACI_ECOLI 1 360 SEQRES 1 C 131 PHE SER HIS GLU ASP GLY THR ARG LEU GLY VAL GLU HIS SEQRES 2 C 131 LEU VAL ALA LEU GLY HIS GLN GLN ILE ALA LEU LEU ALA SEQRES 3 C 131 GLY PRO LEU SER SER VAL SER ALA ARG LEU ARG LEU ALA SEQRES 4 C 131 GLY TRP HIS LYS TYR LEU THR ARG ASN GLN ILE GLN PRO SEQRES 5 C 131 ILE ALA GLU ARG GLU GLY ASP TRP SER ALA MET SER GLY SEQRES 6 C 131 PHE GLN GLN THR MET GLN MET LEU ASN GLU GLY ILE VAL SEQRES 7 C 131 PRO THR ALA MET LEU VAL ALA ASN ASP GLN MET ALA LEU SEQRES 8 C 131 GLY ALA MET ARG ALA ILE THR GLU SER GLY LEU ARG VAL SEQRES 9 C 131 GLY ALA ASP ILE SER VAL VAL GLY TYR ASP ASP THR GLU SEQRES 10 C 131 ASP SER SER CYS TYR ILE PRO PRO LEU THR THR ILE LYS SEQRES 11 C 131 GLN ATOM 1 CA PHE C 161 58.394 28.850 46.944 1.00 15.00 ATOM 2 CA SER C 162 61.800 28.024 48.296 1.00 15.00 ATOM 3 CA HIS C 163 65.411 29.142 48.797 1.00 15.00 ATOM 4 CA GLU C 164 67.347 30.916 51.592 1.00 15.00 ATOM 5 CA ASP C 165 69.266 27.929 52.767 1.00 15.00 ATOM 6 CA GLY C 166 70.528 26.777 49.369 1.00 15.00 ATOM 7 CA THR C 167 71.362 30.410 49.065 1.00 15.00 ATOM 8 CA ARG C 168 74.416 29.421 51.051 1.00 15.00 ATOM 9 CA LEU C 169 74.442 25.663 50.800 1.00 15.00 ATOM 10 CA GLY C 170 76.790 26.336 47.984 1.00 15.00 ATOM 11 CA VAL C 171 78.656 29.049 49.831 1.00 15.00 ATOM 12 CA GLU C 172 79.000 27.217 53.088 1.00 15.00 ATOM 13 CA HIS C 173 79.658 23.734 51.858 1.00 15.00 ATOM 14 CA LEU C 174 82.135 25.290 49.478 1.00 15.00 ATOM 15 CA VAL C 175 84.057 27.107 52.139 1.00 15.00 ATOM 16 CA ALA C 176 83.705 23.862 53.982 1.00 15.00 ATOM 17 CA LEU C 177 85.357 22.313 50.963 1.00 15.00 ATOM 18 CA GLY C 178 88.123 24.862 51.383 1.00 15.00 ATOM 19 CA HIS C 179 87.572 26.503 48.042 1.00 15.00 ATOM 20 CA GLN C 180 87.193 30.052 49.305 1.00 15.00 ATOM 21 CA GLN C 181 88.327 33.278 47.568 1.00 15.00 ATOM 22 CA ILE C 182 85.223 33.346 45.442 1.00 15.00 ATOM 23 CA ALA C 183 83.793 35.516 42.764 1.00 15.00 ATOM 24 CA LEU C 184 80.169 34.481 42.951 1.00 15.00 ATOM 25 CA LEU C 185 77.856 34.946 39.964 1.00 15.00 ATOM 26 CA ALA C 186 74.319 36.111 40.002 1.00 15.00 ATOM 27 CA GLY C 187 71.738 36.791 37.423 1.00 15.00 ATOM 28 CA PRO C 188 70.207 40.224 36.796 1.00 15.00 ATOM 29 CA LEU C 189 68.942 42.516 39.447 1.00 15.00 ATOM 30 CA SER C 190 65.372 43.300 38.393 1.00 15.00 ATOM 31 CA SER C 191 64.176 39.911 39.410 1.00 15.00 ATOM 32 CA VAL C 192 64.639 40.247 43.119 1.00 15.00 ATOM 33 CA SER C 193 65.002 36.507 42.901 1.00 15.00 ATOM 34 CA ALA C 194 68.334 37.319 41.390 1.00 15.00 ATOM 35 CA ARG C 195 69.095 40.148 43.779 1.00 15.00 ATOM 36 CA LEU C 196 67.779 38.141 46.616 1.00 15.00 ATOM 37 CA ARG C 197 69.805 35.115 45.539 1.00 15.00 ATOM 38 CA LEU C 198 72.833 37.356 45.571 1.00 15.00 ATOM 39 CA ALA C 199 72.285 38.826 49.019 1.00 15.00 ATOM 40 CA GLY C 200 72.040 35.286 50.361 1.00 15.00 ATOM 41 CA TRP C 201 75.564 34.542 49.233 1.00 15.00 ATOM 42 CA HIS C 202 76.713 37.682 50.981 1.00 15.00 ATOM 43 CA LYS C 203 74.731 36.971 54.093 1.00 15.00 ATOM 44 CA TYR C 204 76.417 33.620 54.395 1.00 15.00 ATOM 45 CA LEU C 205 79.696 34.493 52.698 1.00 15.00 ATOM 46 CA THR C 206 80.191 37.334 55.123 1.00 15.00 ATOM 47 CA ARG C 207 78.564 35.104 57.794 1.00 15.00 ATOM 48 CA ASN C 208 81.419 32.733 56.982 1.00 15.00 ATOM 49 CA GLN C 209 83.682 35.821 56.987 1.00 15.00 ATOM 50 CA ILE C 210 84.824 35.430 53.374 1.00 15.00 ATOM 51 CA GLN C 211 85.055 37.942 50.585 1.00 15.00 ATOM 52 CA PRO C 212 84.055 37.914 46.867 1.00 15.00 ATOM 53 CA ILE C 213 86.712 38.584 44.311 1.00 15.00 ATOM 54 CA ALA C 214 83.962 39.520 41.904 1.00 15.00 ATOM 55 CA GLU C 215 80.270 39.099 41.396 1.00 15.00 ATOM 56 CA ARG C 216 79.088 40.187 37.953 1.00 15.00 ATOM 57 CA GLU C 217 75.494 40.245 36.790 1.00 15.00 ATOM 58 CA GLY C 218 74.306 37.722 34.235 1.00 15.00 ATOM 59 CA ASP C 219 71.063 37.652 32.233 1.00 15.00 ATOM 60 CA TRP C 220 70.005 34.024 32.533 1.00 15.00 ATOM 61 CA SER C 221 71.035 33.299 28.973 1.00 15.00 ATOM 62 CA ALA C 222 72.957 30.146 28.139 1.00 15.00 ATOM 63 CA MET C 223 75.437 32.662 26.808 1.00 15.00 ATOM 64 CA SER C 224 75.432 34.608 30.077 1.00 15.00 ATOM 65 CA GLY C 225 78.113 32.471 31.548 1.00 15.00 ATOM 66 CA PHE C 226 80.684 32.703 28.796 1.00 15.00 ATOM 67 CA GLN C 227 81.112 36.399 28.123 1.00 15.00 ATOM 68 CA GLN C 228 80.959 37.190 31.804 1.00 15.00 ATOM 69 CA THR C 229 83.372 34.624 33.168 1.00 15.00 ATOM 70 CA MET C 230 85.520 35.055 30.094 1.00 15.00 ATOM 71 CA GLN C 231 86.039 38.770 30.229 1.00 15.00 ATOM 72 CA MET C 232 86.434 38.898 33.991 1.00 15.00 ATOM 73 CA LEU C 233 88.813 35.941 34.186 1.00 15.00 ATOM 74 CA ASN C 234 90.655 37.975 31.518 1.00 15.00 ATOM 75 CA GLU C 235 90.507 40.901 33.943 1.00 15.00 ATOM 76 CA GLY C 236 92.490 38.622 36.301 1.00 15.00 ATOM 77 CA ILE C 237 89.822 36.856 38.272 1.00 15.00 ATOM 78 CA VAL C 238 90.290 33.219 39.175 1.00 15.00 ATOM 79 CA PRO C 239 88.434 32.369 42.417 1.00 15.00 ATOM 80 CA THR C 240 88.666 28.844 43.668 1.00 15.00 ATOM 81 CA ALA C 241 85.035 28.846 42.617 1.00 15.00 ATOM 82 CA MET C 242 81.754 30.638 41.871 1.00 15.00 ATOM 83 CA LEU C 243 78.091 29.847 42.174 1.00 15.00 ATOM 84 CA VAL C 244 75.293 31.072 40.017 1.00 15.00 ATOM 85 CA ALA C 245 71.527 30.819 39.684 1.00 15.00 ATOM 86 CA ASN C 246 70.317 29.297 36.424 1.00 15.00 ATOM 87 CA ASP C 247 72.555 26.305 36.049 1.00 15.00 ATOM 88 CA GLN C 248 72.065 26.710 32.255 1.00 15.00 ATOM 89 CA MET C 249 73.343 30.258 32.039 1.00 15.00 ATOM 90 CA ALA C 250 76.085 29.293 34.418 1.00 15.00 ATOM 91 CA LEU C 251 77.003 26.709 31.814 1.00 15.00 ATOM 92 CA GLY C 252 78.705 29.431 29.829 1.00 15.00 ATOM 93 CA ALA C 253 81.269 29.499 32.620 1.00 15.00 ATOM 94 CA MET C 254 82.289 25.960 31.725 1.00 15.00 ATOM 95 CA ARG C 255 83.071 26.929 28.163 1.00 15.00 ATOM 96 CA ALA C 256 84.933 29.847 29.693 1.00 15.00 ATOM 97 CA ILE C 257 87.326 28.139 32.112 1.00 15.00 ATOM 98 CA THR C 258 87.760 25.275 29.721 1.00 15.00 ATOM 99 CA GLU C 259 88.079 27.214 26.445 1.00 15.00 ATOM 100 CA SER C 260 89.948 29.928 28.352 1.00 15.00 ATOM 101 CA GLY C 261 92.184 26.984 29.126 1.00 15.00 ATOM 102 CA LEU C 262 91.871 25.491 32.586 1.00 15.00 ATOM 103 CA ARG C 263 89.827 23.004 34.580 1.00 15.00 ATOM 104 CA VAL C 264 86.437 23.921 36.021 1.00 15.00 ATOM 105 CA GLY C 265 85.668 22.486 39.425 1.00 15.00 ATOM 106 CA ALA C 266 89.201 21.207 39.833 1.00 15.00 ATOM 107 CA ASP C 267 90.859 24.533 39.149 1.00 15.00 ATOM 108 CA ILE C 268 87.890 26.826 39.759 1.00 15.00 ATOM 109 CA SER C 269 84.967 25.016 41.395 1.00 15.00 ATOM 110 CA VAL C 270 81.453 26.243 40.658 1.00 15.00 ATOM 111 CA VAL C 271 77.768 25.500 41.046 1.00 15.00 ATOM 112 CA GLY C 272 74.453 26.449 39.607 1.00 15.00 ATOM 113 CA TYR C 273 70.969 26.592 40.912 1.00 15.00 ATOM 114 CA ASP C 274 67.644 25.087 39.739 1.00 15.00 ATOM 115 CA ASP C 275 68.868 21.771 38.259 1.00 15.00 ATOM 116 CA THR C 276 67.961 21.028 34.677 1.00 15.00 ATOM 117 CA GLU C 277 68.597 17.580 33.169 1.00 15.00 ATOM 118 CA ASP C 278 70.951 19.379 30.732 1.00 15.00 ATOM 119 CA SER C 279 73.205 20.024 33.710 1.00 15.00 ATOM 120 CA SER C 280 73.056 16.364 34.687 1.00 15.00 ATOM 121 CA CYS C 281 74.614 15.745 31.304 1.00 15.00 ATOM 122 CA TYR C 282 76.972 18.711 31.365 1.00 15.00 ATOM 123 CA ILE C 283 80.617 18.095 30.730 1.00 15.00 ATOM 124 CA PRO C 284 81.258 18.636 34.391 1.00 15.00 ATOM 125 CA PRO C 285 78.138 17.180 35.974 1.00 15.00 ATOM 126 CA LEU C 286 77.023 20.219 37.957 1.00 15.00 ATOM 127 CA THR C 287 77.180 20.148 41.703 1.00 15.00 ATOM 128 CA THR C 288 74.232 22.482 42.137 1.00 15.00 ATOM 129 CA ILE C 289 70.809 22.882 43.763 1.00 15.00 ATOM 130 CA LYS C 290 67.191 22.766 42.667 1.00 15.00 ATOM 131 CA GLN C 291 63.723 24.234 43.267 1.00 15.00 TER