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 B 1 360 UNP P03023 LACI_ECOLI 1 360 SEQRES 1 B 131 PHE SER HIS GLU ASP GLY THR ARG LEU GLY VAL GLU HIS SEQRES 2 B 131 LEU VAL ALA LEU GLY HIS GLN GLN ILE ALA LEU LEU ALA SEQRES 3 B 131 GLY PRO LEU SER SER VAL SER ALA ARG LEU ARG LEU ALA SEQRES 4 B 131 GLY TRP HIS LYS TYR LEU THR ARG ASN GLN ILE GLN PRO SEQRES 5 B 131 ILE ALA GLU ARG GLU GLY ASP TRP SER ALA MET SER GLY SEQRES 6 B 131 PHE GLN GLN THR MET GLN MET LEU ASN GLU GLY ILE VAL SEQRES 7 B 131 PRO THR ALA MET LEU VAL ALA ASN ASP GLN MET ALA LEU SEQRES 8 B 131 GLY ALA MET ARG ALA ILE THR GLU SER GLY LEU ARG VAL SEQRES 9 B 131 GLY ALA ASP ILE SER VAL VAL GLY TYR ASP ASP THR GLU SEQRES 10 B 131 ASP SER SER CYS TYR ILE PRO PRO LEU THR THR ILE LYS SEQRES 11 B 131 GLN ATOM 1 CA PHE B 161 49.045 -17.814 46.776 1.00 15.00 ATOM 2 CA SER B 162 51.894 -16.494 48.825 1.00 15.00 ATOM 3 CA HIS B 163 54.306 -13.630 49.514 1.00 15.00 ATOM 4 CA GLU B 164 54.335 -10.696 52.008 1.00 15.00 ATOM 5 CA ASP B 165 57.045 -12.081 54.190 1.00 15.00 ATOM 6 CA GLY B 166 59.589 -12.901 51.502 1.00 15.00 ATOM 7 CA THR B 167 58.646 -9.435 50.334 1.00 15.00 ATOM 8 CA ARG B 168 61.145 -8.383 52.974 1.00 15.00 ATOM 9 CA LEU B 169 63.007 -11.579 53.758 1.00 15.00 ATOM 10 CA GLY B 170 65.399 -10.233 51.264 1.00 15.00 ATOM 11 CA VAL B 171 65.196 -6.668 52.573 1.00 15.00 ATOM 12 CA GLU B 172 65.490 -7.532 56.206 1.00 15.00 ATOM 13 CA HIS B 173 68.011 -10.328 56.029 1.00 15.00 ATOM 14 CA LEU B 174 70.014 -8.075 53.720 1.00 15.00 ATOM 15 CA VAL B 175 70.050 -5.141 56.061 1.00 15.00 ATOM 16 CA ALA B 176 70.789 -7.768 58.644 1.00 15.00 ATOM 17 CA LEU B 177 73.719 -8.699 56.441 1.00 15.00 ATOM 18 CA GLY B 178 74.725 -5.039 56.570 1.00 15.00 ATOM 19 CA HIS B 179 74.402 -4.444 52.880 1.00 15.00 ATOM 20 CA GLN B 180 72.104 -1.456 53.070 1.00 15.00 ATOM 21 CA GLN B 181 71.954 1.555 50.726 1.00 15.00 ATOM 22 CA ILE B 182 69.857 -0.330 48.214 1.00 15.00 ATOM 23 CA ALA B 183 68.350 0.340 44.871 1.00 15.00 ATOM 24 CA LEU B 184 65.756 -2.382 44.792 1.00 15.00 ATOM 25 CA LEU B 185 64.399 -3.630 41.492 1.00 15.00 ATOM 26 CA ALA B 186 60.839 -4.458 40.653 1.00 15.00 ATOM 27 CA GLY B 187 59.058 -5.634 37.583 1.00 15.00 ATOM 28 CA PRO B 188 56.328 -3.638 35.883 1.00 15.00 ATOM 29 CA LEU B 189 53.471 -1.984 37.617 1.00 15.00 ATOM 30 CA SER B 190 50.316 -3.295 35.891 1.00 15.00 ATOM 31 CA SER B 191 50.637 -6.631 37.558 1.00 15.00 ATOM 32 CA VAL B 192 49.886 -5.564 41.053 1.00 15.00 ATOM 33 CA SER B 193 52.070 -8.569 41.888 1.00 15.00 ATOM 34 CA ALA B 194 54.910 -6.349 40.743 1.00 15.00 ATOM 35 CA ARG B 195 53.562 -3.215 42.386 1.00 15.00 ATOM 36 CA LEU B 196 52.617 -5.171 45.444 1.00 15.00 ATOM 37 CA ARG B 197 56.039 -6.829 45.530 1.00 15.00 ATOM 38 CA LEU B 198 57.550 -3.386 45.393 1.00 15.00 ATOM 39 CA ALA B 199 55.450 -1.893 48.195 1.00 15.00 ATOM 40 CA GLY B 200 56.552 -4.787 50.368 1.00 15.00 ATOM 41 CA TRP B 201 60.166 -3.763 50.051 1.00 15.00 ATOM 42 CA HIS B 202 59.187 -0.232 51.057 1.00 15.00 ATOM 43 CA LYS B 203 57.053 -1.423 53.904 1.00 15.00 ATOM 44 CA TYR B 204 59.986 -3.307 55.356 1.00 15.00 ATOM 45 CA LEU B 205 62.755 -1.139 53.993 1.00 15.00 ATOM 46 CA THR B 206 61.185 1.894 55.601 1.00 15.00 ATOM 47 CA ARG B 207 60.136 -0.424 58.490 1.00 15.00 ATOM 48 CA ASN B 208 63.862 -1.047 58.767 1.00 15.00 ATOM 49 CA GLN B 209 64.305 2.735 58.312 1.00 15.00 ATOM 50 CA ILE B 210 66.442 2.412 55.137 1.00 15.00 ATOM 51 CA GLN B 211 66.235 4.257 51.867 1.00 15.00 ATOM 52 CA PRO B 212 66.379 3.126 48.193 1.00 15.00 ATOM 53 CA ILE B 213 68.972 4.702 45.988 1.00 15.00 ATOM 54 CA ALA B 214 66.792 3.717 43.043 1.00 15.00 ATOM 55 CA GLU B 215 64.068 1.350 42.064 1.00 15.00 ATOM 56 CA ARG B 216 63.487 1.062 38.318 1.00 15.00 ATOM 57 CA GLU B 217 60.703 -0.958 36.694 1.00 15.00 ATOM 58 CA GLY B 218 61.614 -4.051 34.750 1.00 15.00 ATOM 59 CA ASP B 219 59.474 -6.062 32.349 1.00 15.00 ATOM 60 CA TRP B 220 60.144 -9.623 33.436 1.00 15.00 ATOM 61 CA SER B 221 62.318 -10.227 30.363 1.00 15.00 ATOM 62 CA ALA B 222 65.668 -12.035 30.707 1.00 15.00 ATOM 63 CA MET B 223 66.878 -8.829 29.195 1.00 15.00 ATOM 64 CA SER B 224 65.114 -6.665 31.757 1.00 15.00 ATOM 65 CA GLY B 225 68.006 -6.845 34.153 1.00 15.00 ATOM 66 CA PHE B 226 70.773 -5.753 31.858 1.00 15.00 ATOM 67 CA GLN B 227 69.543 -2.552 30.293 1.00 15.00 ATOM 68 CA GLN B 228 68.110 -1.419 33.574 1.00 15.00 ATOM 69 CA THR B 229 70.955 -2.099 35.935 1.00 15.00 ATOM 70 CA MET B 230 73.370 -1.073 33.210 1.00 15.00 ATOM 71 CA GLN B 231 72.045 2.344 32.413 1.00 15.00 ATOM 72 CA MET B 232 71.331 3.243 36.029 1.00 15.00 ATOM 73 CA LEU B 233 74.649 2.030 37.362 1.00 15.00 ATOM 74 CA ASN B 234 75.915 4.245 34.545 1.00 15.00 ATOM 75 CA GLU B 235 73.806 7.001 36.050 1.00 15.00 ATOM 76 CA GLY B 236 75.921 6.510 39.207 1.00 15.00 ATOM 77 CA ILE B 237 74.009 3.926 41.145 1.00 15.00 ATOM 78 CA VAL B 238 75.852 1.210 43.031 1.00 15.00 ATOM 79 CA PRO B 239 73.825 0.055 46.079 1.00 15.00 ATOM 80 CA THR B 240 75.350 -2.590 48.229 1.00 15.00 ATOM 81 CA ALA B 241 72.555 -4.640 46.687 1.00 15.00 ATOM 82 CA MET B 242 69.148 -4.909 45.049 1.00 15.00 ATOM 83 CA LEU B 243 66.365 -7.444 44.960 1.00 15.00 ATOM 84 CA VAL B 244 64.000 -8.239 42.173 1.00 15.00 ATOM 85 CA ALA B 245 61.011 -10.488 41.383 1.00 15.00 ATOM 86 CA ASN B 246 61.589 -12.889 38.487 1.00 15.00 ATOM 87 CA ASP B 247 65.015 -14.262 39.234 1.00 15.00 ATOM 88 CA GLN B 248 65.417 -14.748 35.471 1.00 15.00 ATOM 89 CA MET B 249 64.860 -11.123 34.541 1.00 15.00 ATOM 90 CA ALA B 250 67.020 -10.167 37.437 1.00 15.00 ATOM 91 CA LEU B 251 69.735 -12.243 35.780 1.00 15.00 ATOM 92 CA GLY B 252 70.364 -9.354 33.447 1.00 15.00 ATOM 93 CA ALA B 253 71.734 -7.550 36.451 1.00 15.00 ATOM 94 CA MET B 254 74.520 -10.122 36.704 1.00 15.00 ATOM 95 CA ARG B 255 75.621 -9.468 33.157 1.00 15.00 ATOM 96 CA ALA B 256 75.402 -5.816 34.151 1.00 15.00 ATOM 97 CA ILE B 257 77.601 -5.622 37.231 1.00 15.00 ATOM 98 CA THR B 258 79.986 -8.176 35.813 1.00 15.00 ATOM 99 CA GLU B 259 80.200 -6.913 32.209 1.00 15.00 ATOM 100 CA SER B 260 79.956 -3.356 33.603 1.00 15.00 ATOM 101 CA GLY B 261 83.053 -4.508 35.428 1.00 15.00 ATOM 102 CA LEU B 262 82.501 -5.457 39.061 1.00 15.00 ATOM 103 CA ARG B 263 81.498 -8.331 41.321 1.00 15.00 ATOM 104 CA VAL B 264 77.828 -9.040 41.942 1.00 15.00 ATOM 105 CA GLY B 265 76.940 -10.130 45.423 1.00 15.00 ATOM 106 CA ALA B 266 80.417 -9.341 46.693 1.00 15.00 ATOM 107 CA ASP B 267 80.419 -5.775 45.402 1.00 15.00 ATOM 108 CA ILE B 268 76.669 -5.316 44.959 1.00 15.00 ATOM 109 CA SER B 269 74.615 -8.102 46.531 1.00 15.00 ATOM 110 CA VAL B 270 71.301 -8.976 44.983 1.00 15.00 ATOM 111 CA VAL B 271 68.456 -11.470 44.959 1.00 15.00 ATOM 112 CA GLY B 272 65.603 -12.582 42.842 1.00 15.00 ATOM 113 CA TYR B 273 62.251 -14.076 43.532 1.00 15.00 ATOM 114 CA ASP B 274 60.501 -17.241 42.338 1.00 15.00 ATOM 115 CA ASP B 275 63.506 -19.637 41.996 1.00 15.00 ATOM 116 CA THR B 276 64.025 -21.265 38.611 1.00 15.00 ATOM 117 CA GLU B 277 66.560 -24.075 38.213 1.00 15.00 ATOM 118 CA ASP B 278 68.345 -21.701 35.769 1.00 15.00 ATOM 119 CA SER B 279 69.150 -19.549 38.803 1.00 15.00 ATOM 120 CA SER B 280 70.488 -22.548 40.674 1.00 15.00 ATOM 121 CA CYS B 281 73.000 -22.779 37.835 1.00 15.00 ATOM 122 CA TYR B 282 73.560 -19.059 37.474 1.00 15.00 ATOM 123 CA ILE B 283 77.121 -17.802 37.587 1.00 15.00 ATOM 124 CA PRO B 284 76.387 -16.451 41.030 1.00 15.00 ATOM 125 CA PRO B 285 74.013 -19.080 42.416 1.00 15.00 ATOM 126 CA LEU B 286 71.139 -16.807 43.351 1.00 15.00 ATOM 127 CA THR B 287 70.299 -16.165 46.922 1.00 15.00 ATOM 128 CA THR B 288 66.593 -15.609 46.347 1.00 15.00 ATOM 129 CA ILE B 289 63.129 -16.819 47.226 1.00 15.00 ATOM 130 CA LYS B 290 60.429 -19.008 45.670 1.00 15.00 ATOM 131 CA GLN B 291 56.654 -19.473 45.303 1.00 15.00 TER