HEADER THYMIDINE PHOSPHORYLASE 14-JUN-90 1TPT TITLE THREE-DIMENSIONAL STRUCTURE OF THYMIDINE PHOSPHORYLASE FROM TITLE 2 ESCHERICHIA COLI AT 2.8 ANGSTROMS RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: THYMIDINE PHOSPHORYLASE; COMPND 3 CHAIN: A; COMPND 4 EC: 2.4.2.4; COMPND 5 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.80 ANGSTORMS DBREF 1TPT A 1 440 UNP P07650 TYPH_ECOLI 1 441 SEQRES 1 A 105 THR ALA MET LEU THR LYS ALA VAL TYR ALA ASP THR GLU SEQRES 2 A 105 GLY PHE VAL SER GLU MET ASP THR ARG ALA LEU GLY MET SEQRES 3 A 105 ALA VAL VAL ALA MET GLY GLY GLY ARG ARG GLN ALA SER SEQRES 4 A 105 ASP THR ILE ASP TYR SER VAL GLY PHE THR ASP MET ALA SEQRES 5 A 105 ARG LEU GLY ASP GLN VAL ASP GLY GLN ARG PRO LEU ALA SEQRES 6 A 105 VAL ILE HIS ALA LYS ASP GLU ASN ASN TRP GLN GLU ALA SEQRES 7 A 105 ALA LYS ALA VAL LYS ALA ALA ILE LYS LEU ALA ASP LYS SEQRES 8 A 105 ALA PRO GLU SER THR PRO THR VAL TYR ARG ARG ILE SER SEQRES 9 A 105 GLU ATOM 1 CA THR A 336 5.360 62.683 17.064 1.00 0.00 ATOM 2 CA ALA A 337 4.243 62.723 13.412 1.00 0.00 ATOM 3 CA MET A 338 3.644 65.782 11.245 1.00 0.00 ATOM 4 CA LEU A 339 0.372 64.385 9.862 1.00 0.00 ATOM 5 CA THR A 340 -1.929 62.337 12.123 1.00 0.00 ATOM 6 CA LYS A 341 -5.466 61.685 10.827 1.00 0.00 ATOM 7 CA ALA A 342 -8.086 58.919 10.705 1.00 0.00 ATOM 8 CA VAL A 343 -8.898 56.352 7.958 1.00 0.00 ATOM 9 CA TYR A 344 -12.608 55.913 7.337 1.00 0.00 ATOM 10 CA ALA A 345 -13.952 53.080 5.245 1.00 0.00 ATOM 11 CA ASP A 346 -15.827 53.280 2.005 1.00 0.00 ATOM 12 CA THR A 347 -18.713 51.458 3.611 1.00 0.00 ATOM 13 CA GLU A 348 -20.549 50.779 6.811 1.00 0.00 ATOM 14 CA GLY A 349 -20.655 47.202 8.066 1.00 0.00 ATOM 15 CA PHE A 350 -18.660 45.153 10.597 1.00 0.00 ATOM 16 CA VAL A 351 -15.029 43.903 10.429 1.00 0.00 ATOM 17 CA SER A 352 -14.391 40.326 9.295 1.00 0.00 ATOM 18 CA GLU A 353 -10.800 39.767 8.154 1.00 0.00 ATOM 19 CA MET A 354 -7.501 41.523 8.728 1.00 0.00 ATOM 20 CA ASP A 355 -4.482 40.897 6.514 1.00 0.00 ATOM 21 CA THR A 356 -2.394 41.310 9.653 1.00 0.00 ATOM 22 CA ARG A 357 0.532 40.671 7.344 1.00 0.00 ATOM 23 CA ALA A 358 -0.479 43.611 5.150 1.00 0.00 ATOM 24 CA LEU A 359 -0.785 45.898 8.141 1.00 0.00 ATOM 25 CA GLY A 360 2.647 44.635 9.113 1.00 0.00 ATOM 26 CA MET A 361 4.256 45.832 5.859 1.00 0.00 ATOM 27 CA ALA A 362 2.261 49.090 5.501 1.00 0.00 ATOM 28 CA VAL A 363 4.030 50.194 8.708 1.00 0.00 ATOM 29 CA VAL A 364 7.275 49.303 7.006 1.00 0.00 ATOM 30 CA ALA A 365 6.251 51.139 3.854 1.00 0.00 ATOM 31 CA MET A 366 5.613 54.304 5.832 1.00 0.00 ATOM 32 CA GLY A 367 9.190 53.931 7.182 1.00 0.00 ATOM 33 CA GLY A 368 8.632 52.468 10.679 1.00 0.00 ATOM 34 CA GLY A 369 10.467 49.303 9.659 1.00 0.00 ATOM 35 CA ARG A 370 13.593 48.079 7.945 1.00 0.00 ATOM 36 CA ARG A 371 13.579 46.829 4.374 1.00 0.00 ATOM 37 CA GLN A 372 17.277 45.938 4.610 1.00 0.00 ATOM 38 CA ALA A 373 19.697 45.792 7.553 1.00 0.00 ATOM 39 CA SER A 374 21.054 49.290 6.845 1.00 0.00 ATOM 40 CA ASP A 375 17.702 51.112 6.709 1.00 0.00 ATOM 41 CA THR A 376 17.077 54.011 9.099 1.00 0.00 ATOM 42 CA ILE A 377 13.672 54.344 10.739 1.00 0.00 ATOM 43 CA ASP A 378 11.265 57.177 11.387 1.00 0.00 ATOM 44 CA TYR A 379 10.041 56.339 14.938 1.00 0.00 ATOM 45 CA SER A 380 6.969 58.640 14.735 1.00 0.00 ATOM 46 CA VAL A 381 5.094 56.698 12.056 1.00 0.00 ATOM 47 CA GLY A 382 2.607 53.878 12.683 1.00 0.00 ATOM 48 CA PHE A 383 -0.984 53.014 13.378 1.00 0.00 ATOM 49 CA THR A 384 -2.993 54.264 16.315 1.00 0.00 ATOM 50 CA ASP A 385 -6.570 53.918 17.563 1.00 0.00 ATOM 51 CA MET A 386 -7.036 50.700 15.620 1.00 0.00 ATOM 52 CA ALA A 387 -10.374 48.891 15.019 1.00 0.00 ATOM 53 CA ARG A 388 -10.786 45.180 15.802 1.00 0.00 ATOM 54 CA LEU A 389 -13.021 42.334 14.648 1.00 0.00 ATOM 55 CA GLY A 390 -16.785 42.613 15.174 1.00 0.00 ATOM 56 CA ASP A 391 -16.492 46.364 15.626 1.00 0.00 ATOM 57 CA GLN A 392 -19.152 48.119 13.547 1.00 0.00 ATOM 58 CA VAL A 393 -17.210 50.686 11.569 1.00 0.00 ATOM 59 CA ASP A 394 -19.591 53.386 10.537 1.00 0.00 ATOM 60 CA GLY A 395 -19.125 57.097 9.902 1.00 0.00 ATOM 61 CA GLN A 396 -17.795 58.174 13.271 1.00 0.00 ATOM 62 CA ARG A 397 -15.601 55.155 13.824 1.00 0.00 ATOM 63 CA PRO A 398 -12.382 54.942 11.866 1.00 0.00 ATOM 64 CA LEU A 399 -10.693 51.737 10.780 1.00 0.00 ATOM 65 CA ALA A 400 -7.661 53.227 12.467 1.00 0.00 ATOM 66 CA VAL A 401 -5.905 56.591 12.737 1.00 0.00 ATOM 67 CA ILE A 402 -2.567 56.964 10.982 1.00 0.00 ATOM 68 CA HIS A 403 0.532 58.892 12.042 1.00 0.00 ATOM 69 CA ALA A 404 2.620 59.890 8.991 1.00 0.00 ATOM 70 CA LYS A 405 5.426 62.098 7.634 1.00 0.00 ATOM 71 CA ASP A 406 4.056 63.627 4.415 1.00 0.00 ATOM 72 CA GLU A 407 0.532 63.388 2.869 1.00 0.00 ATOM 73 CA ASN A 408 1.942 60.941 0.257 1.00 0.00 ATOM 74 CA ASN A 409 3.059 58.626 3.071 1.00 0.00 ATOM 75 CA TRP A 410 -0.519 58.919 4.360 1.00 0.00 ATOM 76 CA GLN A 411 -2.195 58.227 0.992 1.00 0.00 ATOM 77 CA GLU A 412 -0.399 54.902 0.412 1.00 0.00 ATOM 78 CA ALA A 413 -0.998 53.865 4.016 1.00 0.00 ATOM 79 CA ALA A 414 -4.775 54.503 3.989 1.00 0.00 ATOM 80 CA LYS A 415 -4.948 52.828 0.648 1.00 0.00 ATOM 81 CA ALA A 416 -2.806 50.128 2.315 1.00 0.00 ATOM 82 CA VAL A 417 -5.041 49.875 5.407 1.00 0.00 ATOM 83 CA LYS A 418 -8.140 50.048 3.267 1.00 0.00 ATOM 84 CA ALA A 419 -7.328 46.710 1.519 1.00 0.00 ATOM 85 CA ALA A 420 -6.291 44.515 4.482 1.00 0.00 ATOM 86 CA ILE A 421 -9.549 44.781 6.379 1.00 0.00 ATOM 87 CA LYS A 422 -12.768 43.305 4.968 1.00 0.00 ATOM 88 CA LEU A 423 -16.186 44.568 6.190 1.00 0.00 ATOM 89 CA ALA A 424 -19.219 42.307 6.507 1.00 0.00 ATOM 90 CA ASP A 425 -22.916 42.613 7.195 1.00 0.00 ATOM 91 CA LYS A 426 -22.477 39.860 9.713 1.00 0.00 ATOM 92 CA ALA A 427 -20.296 40.139 12.798 1.00 0.00 ATOM 93 CA PRO A 428 -17.343 37.772 12.467 1.00 0.00 ATOM 94 CA GLU A 429 -16.904 34.646 14.560 1.00 0.00 ATOM 95 CA SER A 430 -15.415 35.431 18.016 1.00 0.00 ATOM 96 CA THR A 431 -12.037 33.662 18.076 1.00 0.00 ATOM 97 CA PRO A 432 -10.002 32.931 21.202 1.00 0.00 ATOM 98 CA THR A 433 -7.036 35.139 21.992 1.00 0.00 ATOM 99 CA VAL A 434 -5.307 32.186 23.699 1.00 0.00 ATOM 100 CA TYR A 435 -5.852 28.741 22.174 1.00 0.00 ATOM 101 CA ARG A 436 -3.804 26.055 24.023 1.00 0.00 ATOM 102 CA ARG A 437 -1.011 25.696 26.608 1.00 0.00 ATOM 103 CA ILE A 438 1.716 23.368 25.299 1.00 0.00 ATOM 104 CA SER A 439 3.551 22.131 28.316 1.00 0.00 ATOM 105 CA GLU A 440 6.038 19.657 29.687 1.00 0.00 TER