HEADER LIGASE 10-SEP-02 1IYW TITLE Preliminary Structure of Thermus thermophilus Ligand-Free Valyl-tRNA TITLE 2 Synthetase COMPND MOL_ID: 1; COMPND 2 MOLECULE: Valyl-tRNA Synthetase; COMPND 3 CHAIN: A, B; COMPND 4 EC: 6.1.1.9; COMPND 5 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 4.00 ANGSTORMS DBREF 1IYW B 1 862 UNP P96142 SYV_THETH 1 862 SEQRES 1 B 88 ALA TYR ARG ALA PRO ARG LEU VAL ASN TRP CYS PRO ARG SEQRES 2 B 88 CYS GLU THR THR LEU SER ASP LEU GLU VAL GLU THR CYS SEQRES 3 B 88 SER ARG CYS GLY THR PRO ILE GLU TYR ALA ILE PHE PRO SEQRES 4 B 88 GLN TRP TRP LEU ARG MET ARG PRO LEU ALA GLU GLU VAL SEQRES 5 B 88 LEU LYS GLY LEU ARG ARG GLY ASP ILE ALA PHE VAL PRO SEQRES 6 B 88 GLU ARG TRP LYS LYS VAL ASN MET ASP TRP LEU GLU ASN SEQRES 7 B 88 VAL LYS ASP TRP ASN ILE SER ARG GLN LEU ATOM 1 CA ALA B 166 119.071 154.615 -6.038 1.00 10.00 ATOM 2 CA TYR B 167 118.359 158.289 -5.332 1.00 30.49 ATOM 3 CA ARG B 168 120.086 161.608 -6.021 1.00 36.16 ATOM 4 CA ALA B 169 120.155 164.193 -3.222 1.00 45.85 ATOM 5 CA PRO B 170 122.618 167.030 -2.411 1.00 45.33 ATOM 6 CA ARG B 171 123.907 165.836 0.947 1.00 56.27 ATOM 7 CA LEU B 172 127.040 167.153 2.615 1.00 60.13 ATOM 8 CA VAL B 173 130.056 165.491 0.000 0.00 58.03 ATOM 9 CA ASN B 174 133.645 165.138 2.217 0.00 61.91 ATOM 10 CA TRP B 175 135.995 166.582 -0.402 0.00 57.70 ATOM 11 CA CYS B 176 139.641 166.891 -1.400 0.00 50.44 ATOM 12 CA PRO B 177 140.554 169.998 -3.437 0.00 47.93 ATOM 13 CA ARG B 178 143.760 168.064 -4.102 0.00 47.82 ATOM 14 CA CYS B 179 143.143 164.757 -5.813 0.00 44.26 ATOM 15 CA GLU B 180 139.889 166.551 -6.843 0.00 51.75 ATOM 16 CA THR B 181 137.221 163.987 -5.889 0.00 48.48 ATOM 17 CA THR B 182 134.600 163.060 -3.306 0.00 55.05 ATOM 18 CA LEU B 183 135.403 160.753 -0.392 0.00 57.92 ATOM 19 CA SER B 184 133.868 157.773 1.414 0.00 64.11 ATOM 20 CA ASP B 185 133.965 157.637 5.214 0.00 71.87 ATOM 21 CA LEU B 186 136.666 154.991 5.700 0.00 68.82 ATOM 22 CA GLU B 187 139.060 156.383 3.088 0.00 68.35 ATOM 23 CA VAL B 188 140.526 159.754 4.085 0.00 65.99 ATOM 24 CA GLU B 189 142.895 160.620 6.949 0.00 51.44 ATOM 25 CA THR B 343 144.911 166.180 5.038 0.00 56.59 ATOM 26 CA CYS B 344 144.692 164.514 1.618 0.00 49.29 ATOM 27 CA SER B 345 144.700 160.738 2.299 0.00 47.42 ATOM 28 CA ARG B 346 146.738 160.571 -0.902 0.00 56.64 ATOM 29 CA CYS B 347 148.808 163.765 -0.790 0.00 61.91 ATOM 30 CA GLY B 348 148.292 165.933 2.252 0.00 63.41 ATOM 31 CA THR B 349 147.055 169.420 1.387 0.00 60.96 ATOM 32 CA PRO B 350 144.213 170.333 3.864 0.00 62.42 ATOM 33 CA ILE B 351 140.631 169.371 3.063 0.00 62.26 ATOM 34 CA GLU B 352 137.689 171.702 2.854 0.00 63.02 ATOM 35 CA TYR B 353 134.002 170.742 2.922 0.00 54.76 ATOM 36 CA ALA B 354 130.859 171.678 1.036 0.00 38.05 ATOM 37 CA ILE B 355 127.670 170.257 -0.357 1.00 31.13 ATOM 38 CA PHE B 356 127.462 168.410 -3.672 1.00 19.05 ATOM 39 CA PRO B 357 124.921 166.730 -5.992 1.00 21.02 ATOM 40 CA GLN B 358 126.078 163.141 -5.311 1.00 27.92 ATOM 41 CA TRP B 359 124.064 159.934 -5.663 1.00 27.85 ATOM 42 CA TRP B 360 123.459 157.635 -2.699 1.00 34.76 ATOM 43 CA LEU B 361 122.172 154.057 -2.477 1.00 16.67 ATOM 44 CA ARG B 362 119.398 153.356 0.022 1.00 10.00 ATOM 45 CA MET B 363 121.446 150.736 1.925 1.00 10.00 ATOM 46 CA ARG B 364 119.100 150.994 4.872 1.00 10.00 ATOM 47 CA PRO B 365 116.648 148.377 3.550 1.00 10.00 ATOM 48 CA LEU B 366 119.064 146.601 1.199 1.00 10.00 ATOM 49 CA ALA B 367 121.323 145.939 4.161 1.00 10.00 ATOM 50 CA GLU B 368 118.277 144.117 5.493 1.00 14.20 ATOM 51 CA GLU B 369 117.567 141.258 3.085 1.00 10.00 ATOM 52 CA VAL B 370 121.032 139.889 3.696 1.00 10.00 ATOM 53 CA LEU B 371 120.807 140.131 7.483 1.00 12.13 ATOM 54 CA LYS B 372 117.939 137.634 7.642 1.00 28.20 ATOM 55 CA GLY B 373 120.058 135.645 5.232 1.00 12.59 ATOM 56 CA LEU B 374 123.165 135.384 7.377 1.00 10.00 ATOM 57 CA ARG B 375 120.585 134.767 10.068 1.00 21.53 ATOM 58 CA ARG B 376 119.237 131.612 8.335 1.00 27.82 ATOM 59 CA GLY B 377 122.645 129.936 8.422 1.00 21.88 ATOM 60 CA ASP B 378 122.721 130.488 4.661 1.00 18.90 ATOM 61 CA ILE B 379 126.379 131.595 4.891 1.00 21.89 ATOM 62 CA ALA B 380 128.941 130.669 7.587 1.00 33.02 ATOM 63 CA PHE B 381 132.415 132.117 8.271 1.00 33.97 ATOM 64 CA VAL B 382 135.744 130.377 8.936 1.00 10.58 ATOM 65 CA PRO B 383 137.060 132.266 11.961 1.00 32.38 ATOM 66 CA GLU B 384 133.444 132.096 13.064 1.00 28.17 ATOM 67 CA ARG B 385 134.074 135.281 14.949 1.00 27.51 ATOM 68 CA TRP B 386 133.067 137.352 11.951 1.00 18.60 ATOM 69 CA LYS B 387 129.487 136.177 11.734 1.00 12.94 ATOM 70 CA LYS B 388 128.397 139.033 13.979 1.00 10.00 ATOM 71 CA VAL B 389 131.129 141.355 12.739 1.00 10.00 ATOM 72 CA ASN B 390 129.535 141.090 9.317 1.00 10.00 ATOM 73 CA MET B 391 126.001 141.174 10.696 1.00 13.21 ATOM 74 CA ASP B 392 126.849 144.209 12.814 1.00 11.51 ATOM 75 CA TRP B 393 128.109 146.495 10.022 1.00 10.00 ATOM 76 CA LEU B 394 124.763 145.492 8.563 1.00 13.67 ATOM 77 CA GLU B 395 122.764 146.309 11.691 1.00 17.94 ATOM 78 CA ASN B 396 123.172 149.896 10.467 1.00 11.64 ATOM 79 CA VAL B 397 124.907 151.415 7.444 1.00 11.54 ATOM 80 CA LYS B 398 124.235 154.885 5.904 1.00 11.73 ATOM 81 CA ASP B 399 123.308 155.180 2.204 1.00 10.58 ATOM 82 CA TRP B 400 126.822 154.594 0.904 1.00 14.77 ATOM 83 CA ASN B 401 127.938 157.355 -1.478 1.00 18.07 ATOM 84 CA ILE B 402 128.278 156.074 -5.044 1.00 19.68 ATOM 85 CA SER B 403 129.047 159.419 -6.720 1.00 10.67 ATOM 86 CA ARG B 404 132.679 160.031 -7.610 1.00 13.01 ATOM 87 CA GLN B 405 134.733 162.271 -9.899 1.00 26.67 ATOM 88 CA LEU B 406 137.515 160.984 -12.180 1.00 13.17 TER