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 131 PHE SER HIS GLU ASP GLY THR ARG LEU GLY VAL GLU HIS SEQRES 2 D 131 LEU VAL ALA LEU GLY HIS GLN GLN ILE ALA LEU LEU ALA SEQRES 3 D 131 GLY PRO LEU SER SER VAL SER ALA ARG LEU ARG LEU ALA SEQRES 4 D 131 GLY TRP HIS LYS TYR LEU THR ARG ASN GLN ILE GLN PRO SEQRES 5 D 131 ILE ALA GLU ARG GLU GLY ASP TRP SER ALA MET SER GLY SEQRES 6 D 131 PHE GLN GLN THR MET GLN MET LEU ASN GLU GLY ILE VAL SEQRES 7 D 131 PRO THR ALA MET LEU VAL ALA ASN ASP GLN MET ALA LEU SEQRES 8 D 131 GLY ALA MET ARG ALA ILE THR GLU SER GLY LEU ARG VAL SEQRES 9 D 131 GLY ALA ASP ILE SER VAL VAL GLY TYR ASP ASP THR GLU SEQRES 10 D 131 ASP SER SER CYS TYR ILE PRO PRO LEU THR THR ILE LYS SEQRES 11 D 131 GLN ATOM 1 CA PHE D 161 57.617 23.829 8.554 1.00 15.00 ATOM 2 CA SER D 162 60.994 22.870 7.271 1.00 15.00 ATOM 3 CA HIS D 163 63.589 20.116 6.813 1.00 15.00 ATOM 4 CA GLU D 164 64.427 17.619 4.058 1.00 15.00 ATOM 5 CA ASP D 165 67.616 19.261 2.992 1.00 15.00 ATOM 6 CA GLY D 166 69.280 19.602 6.400 1.00 15.00 ATOM 7 CA THR D 167 68.170 16.055 6.730 1.00 15.00 ATOM 8 CA ARG D 168 71.342 15.410 4.806 1.00 15.00 ATOM 9 CA LEU D 169 73.208 18.659 5.087 1.00 15.00 ATOM 10 CA GLY D 170 74.856 16.907 7.931 1.00 15.00 ATOM 11 CA VAL D 171 75.181 13.635 6.127 1.00 15.00 ATOM 12 CA GLU D 172 76.489 15.042 2.889 1.00 15.00 ATOM 13 CA HIS D 173 78.781 17.749 4.143 1.00 15.00 ATOM 14 CA LEU D 174 80.079 15.200 6.588 1.00 15.00 ATOM 15 CA VAL D 175 80.887 12.669 3.933 1.00 15.00 ATOM 16 CA ALA D 176 82.179 15.659 2.119 1.00 15.00 ATOM 17 CA LEU D 177 84.329 16.151 5.170 1.00 15.00 ATOM 18 CA GLY D 178 85.482 12.583 4.778 1.00 15.00 ATOM 19 CA HIS D 179 84.143 11.468 8.098 1.00 15.00 ATOM 20 CA GLN D 180 82.118 8.534 6.824 1.00 15.00 ATOM 21 CA GLN D 181 81.454 5.188 8.571 1.00 15.00 ATOM 22 CA ILE D 182 78.678 6.671 10.624 1.00 15.00 ATOM 23 CA ALA D 183 76.312 5.511 13.231 1.00 15.00 ATOM 24 CA LEU D 184 73.635 8.183 12.958 1.00 15.00 ATOM 25 CA LEU D 185 71.349 8.941 15.887 1.00 15.00 ATOM 26 CA ALA D 186 67.709 9.680 15.804 1.00 15.00 ATOM 27 CA GLY D 187 65.054 10.399 18.346 1.00 15.00 ATOM 28 CA PRO D 188 62.032 8.158 18.887 1.00 15.00 ATOM 29 CA LEU D 189 59.880 6.788 16.153 1.00 15.00 ATOM 30 CA SER D 190 56.349 7.858 17.108 1.00 15.00 ATOM 31 CA SER D 191 56.974 11.391 16.116 1.00 15.00 ATOM 32 CA VAL D 192 57.272 10.842 12.440 1.00 15.00 ATOM 33 CA SER D 193 59.479 13.900 12.711 1.00 15.00 ATOM 34 CA ALA D 194 61.976 11.587 14.261 1.00 15.00 ATOM 35 CA ARG D 195 61.265 8.721 11.837 1.00 15.00 ATOM 36 CA LEU D 196 61.182 11.109 8.993 1.00 15.00 ATOM 37 CA ARG D 197 64.396 12.740 10.153 1.00 15.00 ATOM 38 CA LEU D 198 65.900 9.324 10.179 1.00 15.00 ATOM 39 CA ALA D 199 64.783 8.277 6.720 1.00 15.00 ATOM 40 CA GLY D 200 66.342 11.467 5.435 1.00 15.00 ATOM 41 CA TRP D 201 69.768 10.383 6.634 1.00 15.00 ATOM 42 CA HIS D 202 69.224 7.078 4.857 1.00 15.00 ATOM 43 CA LYS D 203 67.938 8.644 1.683 1.00 15.00 ATOM 44 CA TYR D 204 71.097 10.744 1.444 1.00 15.00 ATOM 45 CA LEU D 205 73.503 8.376 3.203 1.00 15.00 ATOM 46 CA THR D 206 72.560 5.664 0.788 1.00 15.00 ATOM 47 CA ARG D 207 72.267 8.385 -1.896 1.00 15.00 ATOM 48 CA ASN D 208 75.869 9.047 -0.972 1.00 15.00 ATOM 49 CA GLN D 209 76.338 5.248 -0.962 1.00 15.00 ATOM 50 CA ILE D 210 77.473 5.062 2.670 1.00 15.00 ATOM 51 CA GLN D 211 76.420 2.719 5.437 1.00 15.00 ATOM 52 CA PRO D 212 75.462 3.276 9.094 1.00 15.00 ATOM 53 CA ILE D 213 77.373 1.366 11.699 1.00 15.00 ATOM 54 CA ALA D 214 74.416 1.894 14.065 1.00 15.00 ATOM 55 CA GLU D 215 71.435 4.113 14.516 1.00 15.00 ATOM 56 CA ARG D 216 69.811 3.749 17.925 1.00 15.00 ATOM 57 CA GLU D 217 66.593 5.490 19.038 1.00 15.00 ATOM 58 CA GLY D 218 66.778 8.324 21.540 1.00 15.00 ATOM 59 CA ASP D 219 63.930 9.988 23.477 1.00 15.00 ATOM 60 CA TRP D 220 64.761 13.675 23.193 1.00 15.00 ATOM 61 CA SER D 221 65.964 13.814 26.794 1.00 15.00 ATOM 62 CA ALA D 222 69.198 15.581 27.693 1.00 15.00 ATOM 63 CA MET D 223 70.061 12.201 29.036 1.00 15.00 ATOM 64 CA SER D 224 69.189 10.468 25.748 1.00 15.00 ATOM 65 CA GLY D 225 72.635 10.983 24.305 1.00 15.00 ATOM 66 CA PHE D 226 74.659 9.529 27.137 1.00 15.00 ATOM 67 CA GLN D 227 73.188 6.108 27.825 1.00 15.00 ATOM 68 CA GLN D 228 72.753 5.508 24.143 1.00 15.00 ATOM 69 CA THR D 229 76.138 6.550 22.828 1.00 15.00 ATOM 70 CA MET D 230 77.720 5.097 25.937 1.00 15.00 ATOM 71 CA GLN D 231 76.360 1.598 25.784 1.00 15.00 ATOM 72 CA MET D 232 76.737 1.288 22.039 1.00 15.00 ATOM 73 CA LEU D 233 80.264 2.674 21.903 1.00 15.00 ATOM 74 CA ASN D 234 80.772 0.043 24.592 1.00 15.00 ATOM 75 CA GLU D 235 79.287 -2.425 22.158 1.00 15.00 ATOM 76 CA GLY D 236 82.180 -1.475 19.868 1.00 15.00 ATOM 77 CA ILE D 237 80.767 1.366 17.845 1.00 15.00 ATOM 78 CA VAL D 238 82.996 4.302 16.970 1.00 15.00 ATOM 79 CA PRO D 239 81.859 5.924 13.688 1.00 15.00 ATOM 80 CA THR D 240 83.843 8.878 12.490 1.00 15.00 ATOM 81 CA ALA D 241 80.652 10.700 13.416 1.00 15.00 ATOM 82 CA MET D 242 76.935 10.767 14.109 1.00 15.00 ATOM 83 CA LEU D 243 74.117 13.256 13.722 1.00 15.00 ATOM 84 CA VAL D 244 71.014 13.610 15.822 1.00 15.00 ATOM 85 CA ALA D 245 67.860 15.675 16.060 1.00 15.00 ATOM 86 CA ASN D 246 67.481 17.624 19.304 1.00 15.00 ATOM 87 CA ASP D 247 70.924 19.081 19.786 1.00 15.00 ATOM 88 CA GLN D 248 70.236 18.999 23.554 1.00 15.00 ATOM 89 CA MET D 249 69.569 15.290 23.762 1.00 15.00 ATOM 90 CA ALA D 250 72.496 14.745 21.454 1.00 15.00 ATOM 91 CA LEU D 251 74.516 16.559 24.108 1.00 15.00 ATOM 92 CA GLY D 252 74.577 13.335 26.050 1.00 15.00 ATOM 93 CA ALA D 253 76.829 12.011 23.322 1.00 15.00 ATOM 94 CA MET D 254 79.469 14.552 24.271 1.00 15.00 ATOM 95 CA ARG D 255 79.553 13.362 27.863 1.00 15.00 ATOM 96 CA ALA D 256 79.758 9.938 26.311 1.00 15.00 ATOM 97 CA ILE D 257 82.723 10.255 24.013 1.00 15.00 ATOM 98 CA THR D 258 84.481 12.521 26.448 1.00 15.00 ATOM 99 CA GLU D 259 83.717 10.646 29.691 1.00 15.00 ATOM 100 CA SER D 260 84.039 7.353 27.816 1.00 15.00 ATOM 101 CA GLY D 261 87.455 8.824 27.040 1.00 15.00 ATOM 102 CA LEU D 262 88.002 10.264 23.613 1.00 15.00 ATOM 103 CA ARG D 263 87.524 13.454 21.645 1.00 15.00 ATOM 104 CA VAL D 264 84.177 14.276 20.125 1.00 15.00 ATOM 105 CA GLY D 265 84.254 15.893 16.705 1.00 15.00 ATOM 106 CA ALA D 266 87.988 15.287 16.415 1.00 15.00 ATOM 107 CA ASP D 267 87.800 11.578 17.085 1.00 15.00 ATOM 108 CA ILE D 268 84.094 11.089 16.397 1.00 15.00 ATOM 109 CA SER D 269 82.459 14.110 14.727 1.00 15.00 ATOM 110 CA VAL D 270 78.798 14.728 15.388 1.00 15.00 ATOM 111 CA VAL D 271 75.958 17.190 14.956 1.00 15.00 ATOM 112 CA GLY D 272 72.562 17.983 16.290 1.00 15.00 ATOM 113 CA TYR D 273 69.504 19.589 14.887 1.00 15.00 ATOM 114 CA ASP D 274 67.357 22.550 15.983 1.00 15.00 ATOM 115 CA ASP D 275 70.019 24.872 17.519 1.00 15.00 ATOM 116 CA THR D 276 69.511 25.960 21.119 1.00 15.00 ATOM 117 CA GLU D 277 71.731 28.644 22.646 1.00 15.00 ATOM 118 CA ASP D 278 72.792 25.918 25.088 1.00 15.00 ATOM 119 CA SER D 279 74.522 24.246 22.151 1.00 15.00 ATOM 120 CA SER D 280 76.221 27.495 21.239 1.00 15.00 ATOM 121 CA CYS D 281 77.817 27.292 24.655 1.00 15.00 ATOM 122 CA TYR D 282 78.409 23.532 24.612 1.00 15.00 ATOM 123 CA ILE D 283 81.879 22.266 25.341 1.00 15.00 ATOM 124 CA PRO D 284 82.268 21.467 21.668 1.00 15.00 ATOM 125 CA PRO D 285 80.247 24.298 20.053 1.00 15.00 ATOM 126 CA LEU D 286 77.831 22.215 17.988 1.00 15.00 ATOM 127 CA THR D 287 78.106 22.142 14.259 1.00 15.00 ATOM 128 CA THR D 288 74.394 21.554 13.754 1.00 15.00 ATOM 129 CA ILE D 289 71.270 22.873 12.037 1.00 15.00 ATOM 130 CA LYS D 290 68.162 24.794 13.078 1.00 15.00 ATOM 131 CA GLN D 291 64.415 25.228 12.397 1.00 15.00 TER