HEADER RIBOSOME 30-MAR-01 4V42 TITLE Crystal structure of the ribosome at 5.5 A resolution. COMPND MOL_ID: 23; COMPND 2 MOLECULE: 30S RIBOSOMAL PROTEIN S20; COMPND 3 CHAIN: AW; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 5.50 ANGSTORMS DBREF 4V42 A 1 106 GB 11125386 CAC15067 1 106 SEQRES 1 AW 99 ARG ASN LEU SER ALA LEU LYS ARG HIS ARG GLN SER LEU SEQRES 2 AW 99 LYS ARG ARG LEU ARG ASN LYS ALA LYS LYS SER ALA ILE SEQRES 3 AW 99 LYS THR LEU SER LYS LYS ALA VAL GLN LEU ALA GLN GLU SEQRES 4 AW 99 GLY LYS ALA GLU GLU ALA LEU LYS ILE MET ARG LYS ALA SEQRES 5 AW 99 GLU SER LEU ILE ASP LYS ALA ALA LYS GLY SER THR LEU SEQRES 6 AW 99 HIS LYS ASN ALA ALA ALA ARG ARG LYS SER ARG LEU MET SEQRES 7 AW 99 ARG LYS VAL ARG GLN LEU LEU GLU ALA ALA GLY ALA PRO SEQRES 8 AW 99 LEU ILE GLY GLY GLY LEU SER ALA ATOM 1 CA ARG A 8 -57.711 141.419 349.076 1.00 0.00 ATOM 2 CA ASN A 9 -58.711 140.938 352.709 1.00 0.00 ATOM 3 CA LEU A 10 -58.627 137.439 354.198 1.00 0.00 ATOM 4 CA SER A 11 -59.966 138.508 357.595 1.00 0.00 ATOM 5 CA ALA A 12 -57.966 135.631 359.088 1.00 0.00 ATOM 6 CA LEU A 13 -55.118 138.218 359.200 1.00 0.00 ATOM 7 CA LYS A 14 -56.382 138.097 362.749 1.00 0.00 ATOM 8 CA ARG A 15 -54.096 135.082 363.079 1.00 0.00 ATOM 9 CA HIS A 16 -51.030 137.183 362.437 1.00 0.00 ATOM 10 CA ARG A 17 -52.575 139.800 364.683 1.00 0.00 ATOM 11 CA GLN A 18 -52.643 137.255 367.513 1.00 0.00 ATOM 12 CA SER A 19 -49.320 135.646 366.669 1.00 0.00 ATOM 13 CA LEU A 20 -47.647 138.917 367.548 1.00 0.00 ATOM 14 CA LYS A 21 -49.300 138.972 370.940 1.00 0.00 ATOM 15 CA ARG A 22 -48.455 135.377 371.800 1.00 0.00 ATOM 16 CA ARG A 23 -44.957 136.072 370.540 1.00 0.00 ATOM 17 CA LEU A 24 -44.687 138.932 372.981 1.00 0.00 ATOM 18 CA ARG A 25 -46.313 136.954 375.777 1.00 0.00 ATOM 19 CA ASN A 26 -43.870 134.054 375.303 1.00 0.00 ATOM 20 CA LYS A 27 -40.805 136.174 374.808 1.00 0.00 ATOM 21 CA ALA A 28 -41.578 137.738 378.206 1.00 0.00 ATOM 22 CA LYS A 29 -41.870 134.451 380.043 1.00 0.00 ATOM 23 CA LYS A 30 -38.590 133.072 378.776 1.00 0.00 ATOM 24 CA SER A 31 -36.481 136.148 379.436 1.00 0.00 ATOM 25 CA ALA A 32 -37.678 136.065 383.053 1.00 0.00 ATOM 26 CA ILE A 33 -36.784 132.395 383.127 1.00 0.00 ATOM 27 CA LYS A 34 -33.237 132.915 381.856 1.00 0.00 ATOM 28 CA THR A 35 -32.648 135.845 384.181 1.00 0.00 ATOM 29 CA LEU A 36 -33.645 133.879 387.253 1.00 0.00 ATOM 30 CA SER A 37 -31.779 130.778 386.081 1.00 0.00 ATOM 31 CA LYS A 38 -28.461 132.616 385.853 1.00 0.00 ATOM 32 CA LYS A 39 -29.278 134.633 388.960 1.00 0.00 ATOM 33 CA ALA A 40 -29.544 131.319 390.782 1.00 0.00 ATOM 34 CA VAL A 41 -26.608 129.559 389.108 1.00 0.00 ATOM 35 CA GLN A 42 -24.522 132.599 389.913 1.00 0.00 ATOM 36 CA LEU A 43 -25.567 132.576 393.588 1.00 0.00 ATOM 37 CA ALA A 44 -24.734 128.887 393.931 1.00 0.00 ATOM 38 CA GLN A 45 -21.652 129.824 391.948 1.00 0.00 ATOM 39 CA GLU A 46 -20.433 132.166 394.713 1.00 0.00 ATOM 40 CA GLY A 47 -21.306 129.443 397.214 1.00 0.00 ATOM 41 CA LYS A 48 -24.262 131.260 398.860 1.00 0.00 ATOM 42 CA ALA A 49 -26.509 128.324 399.790 1.00 0.00 ATOM 43 CA GLU A 50 -29.843 129.805 400.916 1.00 0.00 ATOM 44 CA GLU A 51 -30.552 132.548 398.380 1.00 0.00 ATOM 45 CA ALA A 52 -29.123 130.374 395.591 1.00 0.00 ATOM 46 CA LEU A 53 -31.826 127.768 396.195 1.00 0.00 ATOM 47 CA LYS A 54 -34.543 130.332 397.027 1.00 0.00 ATOM 48 CA ILE A 55 -34.108 131.787 393.586 1.00 0.00 ATOM 49 CA MET A 56 -33.714 128.365 391.997 1.00 0.00 ATOM 50 CA ARG A 57 -37.200 127.401 393.267 1.00 0.00 ATOM 51 CA LYS A 58 -38.641 130.457 391.484 1.00 0.00 ATOM 52 CA ALA A 59 -36.829 129.468 388.327 1.00 0.00 ATOM 53 CA GLU A 60 -38.183 125.945 388.695 1.00 0.00 ATOM 54 CA SER A 61 -41.667 127.419 389.107 1.00 0.00 ATOM 55 CA LEU A 62 -41.651 129.867 386.222 1.00 0.00 ATOM 56 CA ILE A 63 -40.378 127.053 384.042 1.00 0.00 ATOM 57 CA ASP A 64 -43.103 124.554 384.889 1.00 0.00 ATOM 58 CA LYS A 65 -45.667 127.325 384.428 1.00 0.00 ATOM 59 CA ALA A 66 -44.080 128.239 381.129 1.00 0.00 ATOM 60 CA ALA A 67 -44.810 124.632 380.157 1.00 0.00 ATOM 61 CA LYS A 68 -48.349 125.064 381.475 1.00 0.00 ATOM 62 CA GLY A 69 -49.417 127.008 378.405 1.00 0.00 ATOM 63 CA SER A 70 -47.558 126.610 375.114 1.00 0.00 ATOM 64 CA THR A 71 -44.438 128.640 375.907 1.00 0.00 ATOM 65 CA LEU A 72 -41.689 126.253 376.954 1.00 0.00 ATOM 66 CA HIS A 73 -43.923 123.223 376.836 1.00 0.00 ATOM 67 CA LYS A 74 -42.909 119.528 376.880 1.00 0.00 ATOM 68 CA ASN A 75 -39.506 118.225 377.916 1.00 0.00 ATOM 69 CA ALA A 76 -38.332 121.751 377.168 1.00 0.00 ATOM 70 CA ALA A 77 -39.311 122.415 380.758 1.00 0.00 ATOM 71 CA ALA A 78 -37.707 119.177 381.926 1.00 0.00 ATOM 72 CA ARG A 79 -34.364 120.029 380.279 1.00 0.00 ATOM 73 CA ARG A 80 -34.366 123.488 381.828 1.00 0.00 ATOM 74 CA LYS A 81 -34.986 122.223 385.333 1.00 0.00 ATOM 75 CA SER A 82 -32.382 119.460 385.250 1.00 0.00 ATOM 76 CA ARG A 83 -29.654 121.597 383.606 1.00 0.00 ATOM 77 CA LEU A 84 -30.498 124.085 386.388 1.00 0.00 ATOM 78 CA MET A 85 -30.665 121.920 389.539 1.00 0.00 ATOM 79 CA ARG A 86 -27.556 120.223 388.199 1.00 0.00 ATOM 80 CA LYS A 87 -25.448 123.356 387.655 1.00 0.00 ATOM 81 CA VAL A 88 -26.665 124.664 391.026 1.00 0.00 ATOM 82 CA ARG A 89 -25.939 121.669 393.245 1.00 0.00 ATOM 83 CA GLN A 90 -22.501 121.193 391.696 1.00 0.00 ATOM 84 CA LEU A 91 -21.440 124.839 391.980 1.00 0.00 ATOM 85 CA LEU A 92 -22.606 124.460 395.554 1.00 0.00 ATOM 86 CA GLU A 93 -19.700 122.035 396.025 1.00 0.00 ATOM 87 CA ALA A 94 -17.539 124.769 397.490 1.00 0.00 ATOM 88 CA ALA A 95 -18.546 124.060 401.106 1.00 0.00 ATOM 89 CA GLY A 96 -22.193 124.425 400.155 1.00 0.00 ATOM 90 CA ALA A 97 -24.445 122.321 402.351 1.00 0.00 ATOM 91 CA PRO A 98 -27.886 122.926 400.750 1.00 0.00 ATOM 92 CA LEU A 99 -29.674 124.750 403.563 1.00 0.00 ATOM 93 CA ILE A 100 -33.111 125.501 402.126 1.00 0.00 ATOM 94 CA GLY A 101 -32.599 122.372 400.046 1.00 0.00 ATOM 95 CA GLY A 102 -35.563 123.706 398.110 1.00 0.00 ATOM 96 CA GLY A 103 -35.371 122.260 394.636 1.00 0.00 ATOM 97 CA LEU A 104 -32.852 119.725 395.925 1.00 0.00 ATOM 98 CA SER A 105 -33.627 116.265 397.235 1.00 0.00 ATOM 99 CA ALA A 106 -30.758 116.020 399.709 1.00 0.00 TER