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 D 1 360 UNP P03023 LACI_ECOLI 1 360 SEQRES 1 D 167 SER LEU LEU ILE GLY VAL ALA THR SER SER LEU ALA LEU SEQRES 2 D 167 HIS ALA PRO SER GLN ILE VAL ALA ALA ILE LYS SER ARG SEQRES 3 D 167 ALA ASP GLN LEU GLY ALA SER VAL VAL VAL SER MET VAL SEQRES 4 D 167 GLU ARG SER GLY VAL GLU ALA CYS LYS THR ALA VAL HIS SEQRES 5 D 167 ASN LEU LEU ALA GLN ARG VAL SER GLY LEU ILE ILE ASN SEQRES 6 D 167 TYR PRO LEU ASP ASP GLN ASP ALA ILE ALA VAL GLU ALA SEQRES 7 D 167 ALA CYS THR ASN VAL PRO ALA LEU PHE LEU ASP VAL SER SEQRES 8 D 167 ASP GLN THR PRO ILE ASN SER ILE ILE GLN ASP PHE ARG SEQRES 9 D 167 LEU LEU GLY GLN THR SER VAL ASP ARG LEU LEU GLN LEU SEQRES 10 D 167 SER GLN GLY GLN ALA VAL LYS GLY ASN GLN LEU LEU PRO SEQRES 11 D 167 VAL SER LEU VAL LYS ARG LYS THR THR LEU ALA PRO ASN SEQRES 12 D 167 THR GLN THR ALA SER PRO ARG ALA LEU ALA ASP SER LEU SEQRES 13 D 167 MET GLN LEU ALA ARG GLN VAL SER ARG LEU GLU ATOM 1 CA SER D 61 38.044 36.168 16.701 1.00 15.00 ATOM 2 CA LEU D 62 41.692 35.575 17.524 1.00 15.00 ATOM 3 CA LEU D 63 40.905 32.806 19.964 1.00 15.00 ATOM 4 CA ILE D 64 44.067 30.945 19.032 1.00 15.00 ATOM 5 CA GLY D 65 42.957 27.569 20.253 1.00 15.00 ATOM 6 CA VAL D 66 46.233 25.758 20.609 1.00 15.00 ATOM 7 CA ALA D 67 47.147 22.302 21.611 1.00 15.00 ATOM 8 CA THR D 68 50.636 21.065 21.562 1.00 15.00 ATOM 9 CA SER D 69 52.576 18.295 23.221 1.00 15.00 ATOM 10 CA SER D 70 53.136 19.513 26.742 1.00 15.00 ATOM 11 CA LEU D 71 56.632 19.431 28.244 1.00 15.00 ATOM 12 CA ALA D 72 57.384 22.978 27.245 1.00 15.00 ATOM 13 CA LEU D 73 60.952 21.707 26.710 1.00 15.00 ATOM 14 CA HIS D 74 62.398 24.020 24.104 1.00 15.00 ATOM 15 CA ALA D 75 60.815 22.453 21.128 1.00 15.00 ATOM 16 CA PRO D 76 57.243 23.101 22.019 1.00 15.00 ATOM 17 CA SER D 77 57.867 25.955 24.373 1.00 15.00 ATOM 18 CA GLN D 78 59.851 28.198 22.155 1.00 15.00 ATOM 19 CA ILE D 79 57.126 27.648 19.616 1.00 15.00 ATOM 20 CA VAL D 80 54.213 28.096 21.937 1.00 15.00 ATOM 21 CA ALA D 81 55.858 31.261 23.143 1.00 15.00 ATOM 22 CA ALA D 82 56.345 32.380 19.577 1.00 15.00 ATOM 23 CA ILE D 83 52.741 32.227 18.639 1.00 15.00 ATOM 24 CA LYS D 84 51.548 33.574 21.931 1.00 15.00 ATOM 25 CA SER D 85 53.976 36.478 21.562 1.00 15.00 ATOM 26 CA ARG D 86 52.903 37.260 18.022 1.00 15.00 ATOM 27 CA ALA D 87 49.289 36.641 18.755 1.00 15.00 ATOM 28 CA ASP D 88 49.360 39.252 21.433 1.00 15.00 ATOM 29 CA GLN D 89 49.737 42.353 19.247 1.00 15.00 ATOM 30 CA LEU D 90 47.362 41.276 16.553 1.00 15.00 ATOM 31 CA GLY D 91 44.872 40.884 19.365 1.00 15.00 ATOM 32 CA ALA D 92 45.103 37.112 19.552 1.00 15.00 ATOM 33 CA SER D 93 44.423 35.097 22.628 1.00 15.00 ATOM 34 CA VAL D 94 46.075 31.759 23.369 1.00 15.00 ATOM 35 CA VAL D 95 44.205 28.746 24.677 1.00 15.00 ATOM 36 CA VAL D 96 46.753 26.120 25.395 1.00 15.00 ATOM 37 CA SER D 97 45.816 22.529 25.886 1.00 15.00 ATOM 38 CA MET D 98 49.007 20.681 26.555 1.00 15.00 ATOM 39 CA VAL D 99 48.158 17.156 25.371 1.00 15.00 ATOM 40 CA GLU D 100 48.767 14.149 27.659 1.00 15.00 ATOM 41 CA ARG D 101 51.022 11.861 25.658 1.00 15.00 ATOM 42 CA SER D 102 50.540 9.578 22.654 1.00 15.00 ATOM 43 CA GLY D 103 46.781 10.025 23.120 1.00 15.00 ATOM 44 CA VAL D 104 45.844 10.350 19.481 1.00 15.00 ATOM 45 CA GLU D 105 42.295 10.475 20.800 1.00 15.00 ATOM 46 CA ALA D 106 43.374 12.834 23.568 1.00 15.00 ATOM 47 CA CYS D 107 44.515 15.655 21.322 1.00 15.00 ATOM 48 CA LYS D 108 41.325 15.335 19.313 1.00 15.00 ATOM 49 CA THR D 109 39.369 15.522 22.469 1.00 15.00 ATOM 50 CA ALA D 110 41.554 18.359 23.723 1.00 15.00 ATOM 51 CA VAL D 111 40.598 20.154 20.582 1.00 15.00 ATOM 52 CA HIS D 112 37.011 19.780 21.622 1.00 15.00 ATOM 53 CA ASN D 113 37.652 22.054 24.586 1.00 15.00 ATOM 54 CA LEU D 114 38.945 24.576 22.091 1.00 15.00 ATOM 55 CA LEU D 115 35.991 24.178 19.772 1.00 15.00 ATOM 56 CA ALA D 116 33.747 24.523 22.783 1.00 15.00 ATOM 57 CA GLN D 117 35.347 27.879 23.122 1.00 15.00 ATOM 58 CA ARG D 118 34.399 28.688 19.501 1.00 15.00 ATOM 59 CA VAL D 119 38.089 29.076 18.775 1.00 15.00 ATOM 60 CA SER D 120 38.327 31.667 16.071 1.00 15.00 ATOM 61 CA GLY D 121 41.258 29.612 14.858 1.00 15.00 ATOM 62 CA LEU D 122 43.180 26.702 16.222 1.00 15.00 ATOM 63 CA ILE D 123 46.555 25.177 16.031 1.00 15.00 ATOM 64 CA ILE D 124 47.881 21.735 16.714 1.00 15.00 ATOM 65 CA ASN D 125 51.396 21.156 17.693 1.00 15.00 ATOM 66 CA TYR D 126 51.120 17.580 18.587 1.00 15.00 ATOM 67 CA PRO D 127 53.934 16.293 16.360 1.00 15.00 ATOM 68 CA LEU D 128 53.471 14.540 13.096 1.00 15.00 ATOM 69 CA ASP D 129 50.850 11.845 13.495 1.00 15.00 ATOM 70 CA ASP D 130 49.445 11.309 9.982 1.00 15.00 ATOM 71 CA GLN D 131 45.942 10.515 8.706 1.00 15.00 ATOM 72 CA ASP D 132 45.172 10.477 12.412 1.00 15.00 ATOM 73 CA ALA D 133 45.391 14.234 12.192 1.00 15.00 ATOM 74 CA ILE D 134 43.258 13.838 9.082 1.00 15.00 ATOM 75 CA ALA D 135 40.504 12.536 11.288 1.00 15.00 ATOM 76 CA VAL D 136 41.650 15.028 13.864 1.00 15.00 ATOM 77 CA GLU D 137 41.364 17.618 11.206 1.00 15.00 ATOM 78 CA ALA D 138 37.960 16.304 10.373 1.00 15.00 ATOM 79 CA ALA D 139 36.268 16.993 13.730 1.00 15.00 ATOM 80 CA CYS D 140 37.512 20.503 13.363 1.00 15.00 ATOM 81 CA THR D 141 35.118 21.077 10.499 1.00 15.00 ATOM 82 CA ASN D 142 35.797 24.608 11.701 1.00 15.00 ATOM 83 CA VAL D 143 38.767 26.976 11.142 1.00 15.00 ATOM 84 CA PRO D 144 41.240 24.143 10.550 1.00 15.00 ATOM 85 CA ALA D 145 44.190 24.395 12.852 1.00 15.00 ATOM 86 CA LEU D 146 47.663 23.958 11.694 1.00 15.00 ATOM 87 CA PHE D 147 48.995 20.699 12.998 1.00 15.00 ATOM 88 CA LEU D 148 52.132 22.534 12.036 1.00 15.00 ATOM 89 CA ASP D 149 54.460 19.600 12.115 1.00 15.00 ATOM 90 CA VAL D 150 53.093 16.521 10.422 1.00 15.00 ATOM 91 CA SER D 151 53.889 14.185 7.543 1.00 15.00 ATOM 92 CA ASP D 152 55.761 16.149 4.845 1.00 15.00 ATOM 93 CA GLN D 153 52.808 15.510 2.741 1.00 15.00 ATOM 94 CA THR D 154 49.744 13.916 4.016 1.00 15.00 ATOM 95 CA PRO D 155 47.112 15.682 1.825 1.00 15.00 ATOM 96 CA ILE D 156 46.326 18.507 4.166 1.00 15.00 ATOM 97 CA ASN D 157 46.712 22.148 5.104 1.00 15.00 ATOM 98 CA SER D 158 48.695 23.133 8.132 1.00 15.00 ATOM 99 CA ILE D 159 51.747 21.641 6.487 1.00 15.00 ATOM 100 CA ILE D 160 54.044 24.392 7.496 1.00 15.00 ATOM 101 CA GLN D 291 64.415 25.228 12.397 1.00 15.00 ATOM 102 CA ASP D 292 63.116 28.737 13.194 1.00 15.00 ATOM 103 CA PHE D 293 60.355 27.999 15.623 1.00 15.00 ATOM 104 CA ARG D 294 59.700 31.664 16.032 1.00 15.00 ATOM 105 CA LEU D 295 58.832 31.725 12.413 1.00 15.00 ATOM 106 CA LEU D 296 57.109 28.391 12.507 1.00 15.00 ATOM 107 CA GLY D 297 54.801 29.733 15.103 1.00 15.00 ATOM 108 CA GLN D 298 54.405 33.300 14.071 1.00 15.00 ATOM 109 CA THR D 299 53.934 32.264 10.516 1.00 15.00 ATOM 110 CA SER D 300 51.159 29.890 11.292 1.00 15.00 ATOM 111 CA VAL D 301 49.459 32.569 13.309 1.00 15.00 ATOM 112 CA ASP D 302 49.171 34.808 10.326 1.00 15.00 ATOM 113 CA ARG D 303 48.545 31.882 8.062 1.00 15.00 ATOM 114 CA LEU D 304 45.805 30.837 10.400 1.00 15.00 ATOM 115 CA LEU D 305 44.459 34.333 10.088 1.00 15.00 ATOM 116 CA GLN D 306 45.058 33.452 6.465 1.00 15.00 ATOM 117 CA LEU D 307 41.843 31.614 5.917 1.00 15.00 ATOM 118 CA SER D 308 39.799 32.781 8.825 1.00 15.00 ATOM 119 CA GLN D 309 39.997 36.389 7.750 1.00 15.00 ATOM 120 CA GLY D 310 42.521 35.635 5.045 1.00 15.00 ATOM 121 CA GLN D 311 40.348 33.509 2.767 1.00 15.00 ATOM 122 CA ALA D 312 42.993 33.025 0.022 1.00 15.00 ATOM 123 CA VAL D 313 43.873 29.357 0.744 1.00 15.00 ATOM 124 CA LYS D 314 46.846 27.121 1.453 1.00 15.00 ATOM 125 CA GLY D 315 47.773 23.621 2.517 1.00 15.00 ATOM 126 CA ASN D 316 51.384 22.514 2.495 1.00 15.00 ATOM 127 CA GLN D 317 54.172 24.959 3.260 1.00 15.00 ATOM 128 CA LEU D 318 57.853 24.332 3.606 1.00 15.00 ATOM 129 CA LEU D 319 60.496 26.668 4.921 1.00 15.00 ATOM 130 CA PRO D 320 64.327 26.976 5.385 1.00 15.00 ATOM 131 CA VAL D 321 66.653 25.013 7.536 1.00 15.00 ATOM 132 CA SER D 322 70.199 26.416 7.379 1.00 15.00 ATOM 133 CA LEU D 323 73.260 24.687 8.747 1.00 15.00 ATOM 134 CA VAL D 324 75.903 25.967 11.189 1.00 15.00 ATOM 135 CA LYS D 325 79.649 25.379 11.306 1.00 15.00 ATOM 136 CA ARG D 326 81.337 24.634 14.644 1.00 15.00 ATOM 137 CA LYS D 327 83.565 22.245 16.589 1.00 15.00 ATOM 138 CA THR D 328 81.777 18.925 16.142 1.00 15.00 ATOM 139 CA THR D 329 82.512 18.269 12.566 1.00 15.00 ATOM 140 CA LEU D 330 86.218 18.658 11.798 1.00 15.00 ATOM 141 CA ALA D 331 88.898 16.060 11.133 1.00 15.00 ATOM 142 CA PRO D 332 88.354 12.253 11.248 1.00 15.00 ATOM 143 CA ASN D 333 91.462 10.119 10.912 1.00 15.00 ATOM 144 CA THR D 334 91.371 8.227 14.211 1.00 15.00 ATOM 145 CA GLN D 335 95.148 8.374 14.692 1.00 15.00 ATOM 146 CA THR D 336 95.739 4.640 15.460 1.00 15.00 ATOM 147 CA ALA D 337 96.082 5.451 19.137 1.00 15.00 ATOM 148 CA SER D 338 96.368 1.736 19.526 1.00 15.00 ATOM 149 CA PRO D 339 100.146 1.725 19.989 1.00 15.00 ATOM 150 CA ARG D 340 102.037 1.979 23.239 1.00 15.00 ATOM 151 CA ALA D 341 100.218 5.275 23.608 1.00 15.00 ATOM 152 CA LEU D 342 97.481 4.003 25.921 1.00 15.00 ATOM 153 CA ALA D 343 99.208 1.887 28.476 1.00 15.00 ATOM 154 CA ASP D 344 101.636 4.712 29.257 1.00 15.00 ATOM 155 CA SER D 345 98.505 6.615 30.007 1.00 15.00 ATOM 156 CA LEU D 346 98.194 4.380 33.103 1.00 15.00 ATOM 157 CA MET D 347 101.924 3.812 33.447 1.00 15.00 ATOM 158 CA GLN D 348 101.773 7.327 34.794 1.00 15.00 ATOM 159 CA LEU D 349 98.411 6.911 36.346 1.00 15.00 ATOM 160 CA ALA D 350 100.400 4.204 38.127 1.00 15.00 ATOM 161 CA ARG D 351 102.211 6.978 39.944 1.00 15.00 ATOM 162 CA GLN D 352 98.808 8.807 40.265 1.00 15.00 ATOM 163 CA VAL D 353 97.763 5.485 41.650 1.00 15.00 ATOM 164 CA SER D 354 100.780 5.376 43.928 1.00 15.00 ATOM 165 CA ARG D 355 99.879 8.976 44.701 1.00 15.00 ATOM 166 CA LEU D 356 96.804 7.699 46.555 1.00 15.00 ATOM 167 CA GLU D 357 98.818 6.634 49.583 1.00 15.00 TER