1 12 1 2 3 4 5 6 7 8 9 10 11 12 GGCCACCUGA Ca 12 A23 Crystallography ? ? Angstroms 1 G O3' 108.140 52.914 5.966 2 G P 106.553 53.149 5.895 O3' 102.904 57.589 5.712 3 C P 101.453 57.477 5.027 O3' 98.351 60.591 2.673 4 C P 97.212 59.686 1.990 O3' 94.376 60.640 -2.070 5 A P 93.669 59.287 -2.571 O3' 92.592 58.487 -7.569 6 C P 91.788 57.103 -7.433 O3' 92.470 53.463 -11.265 7 C P 91.879 51.993 -10.984 O3' 93.798 47.639 -12.460 8 U P 92.666 46.644 -11.910 O3' 93.821 41.849 -10.554 9 G P 92.430 41.340 -9.937 O3' 92.474 38.275 -5.741 10 A P 91.078 38.094 -4.964 O3' 90.655 36.571 -0.140 11 C P 89.070 36.324 -0.152 O3' 86.212 37.844 4.072 12 a P 84.919 37.001 3.605 O3' 79.991 39.732 3.036 SG1 1 1 SG2 4 4 SG3 8 8 SG4 12 12 1 276.481 166.022 2 268.189 172.042 3 254.369 182.075 4 240.549 192.108 5 212.909 212.175 6 199.089 222.208 7 185.269 232.241 8 179.249 223.949 9 157.628 252.308 10 143.808 262.341 11 129.988 272.374 12 121.696 278.394 1 9 13 14 15 16 17 18 19 20 21 GUCCUCUC C Crystallography ? ? Angstroms 1 G O3' 73.907 41.964 5.080 2 U P 73.132 42.163 3.692 O3' 70.190 45.507 2.026 3 C P 69.439 44.602 0.930 O3' 68.403 45.768 -3.767 4 C P 67.767 44.428 -4.372 O3' 67.924 43.092 -9.158 5 U P 67.030 41.756 -9.134 O3' 67.628 37.849 -12.321 6 C P 66.759 36.589 -11.844 O3' 68.268 31.820 -12.739 7 U P 67.081 30.928 -12.139 O3' 67.651 26.240 -10.457 8 C P 66.112 25.866 -10.183 O3' 65.275 22.698 -6.057 9 C P 63.701 22.538 -5.789 O3' 61.391 22.024 -1.446 SG1 1 1 1 98.488 285.800 2 90.713 292.474 3 77.754 303.597 4 64.795 314.721 5 51.836 325.844 6 38.877 336.967 7 25.918 348.090 8 12.959 359.213 9 0.000 370.336 1 92 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 GGAGAGAGA AGUCAACCAG AGAAACACAC CAACCCAUUG CACUCCGGGU UGGUGGUAUA UUACCUGGUA CGGGGGAAAC UUCGUGGUGG CCG LOOP1 36 45 LOOP2 76 77 Crystallography ? ? Angstroms 1 G O3' 63.990 35.800 5.734 2 G P 65.571 35.633 5.501 O3' 68.289 31.378 6.278 3 A P 69.800 31.729 5.848 O3' 72.926 28.302 3.933 4 G P 74.312 28.925 3.422 O3' 77.391 28.344 -1.446 5 A P 78.479 29.512 -1.587 O3' 80.159 31.137 -6.228 6 G P 81.036 32.479 -6.076 O3' 81.454 35.701 -10.171 7 A P 82.391 36.927 -9.722 O3' 81.506 41.693 -11.168 8 G P 82.914 42.290 -10.671 O3' 82.069 46.692 -7.054 9 A P 83.413 47.421 -6.574 O3' 81.958 52.090 -4.760 10 A P 83.446 52.549 -4.378 O3' 84.098 54.537 0.351 11 G P 85.686 54.748 0.253 O3' 88.475 53.465 4.499 12 U P 90.055 53.550 4.214 O3' 93.359 50.429 6.875 13 C P 94.799 50.725 6.219 O3' 98.048 46.572 5.680 14 A P 99.406 46.911 4.881 O3' 102.221 42.418 3.172 15 A P 103.736 42.537 2.658 O3' 100.946 38.502 -0.846 16 C P 99.648 38.017 -0.032 O3' 98.463 33.145 0.921 17 C P 97.222 33.203 1.939 O3' 95.825 29.341 5.052 18 A P 94.723 29.852 6.102 O3' 94.257 28.358 10.908 19 G P 93.125 29.255 11.614 O3' 93.104 29.773 16.669 20 A P 91.832 30.694 16.994 O3' 91.757 35.568 20.101 21 G P 90.333 36.282 19.917 O3' 89.988 41.238 19.083 22 A P 88.382 41.272 19.123 O3' 87.348 46.373 17.947 23 A P 86.043 47.057 17.306 O3' 86.816 51.627 14.837 24 A P 85.516 52.171 14.062 O3' 85.498 54.412 9.472 25 C P 83.952 54.820 9.344 O3' 81.092 54.103 5.164 26 A P 79.548 54.443 5.476 O3' 75.641 51.948 3.269 27 C P 74.328 52.599 3.926 O3' 70.230 49.887 5.357 28 A P 69.170 50.829 6.118 O3' 65.832 49.405 9.637 29 C P 65.059 50.772 9.973 O3' 63.449 51.638 14.896 30 C P 62.852 53.110 15.129 O3' 62.982 55.554 19.671 31 A P 62.358 57.000 19.393 O3' 63.425 61.066 21.939 32 A P 62.525 62.219 21.271 O3' 64.112 66.950 21.601 33 C P 63.164 67.937 20.774 O3' 64.601 71.910 16.957 34 C P 63.338 72.308 16.052 O3' 64.438 74.219 11.356 35 C P 63.006 74.523 10.704 O3' 62.191 73.903 5.759 36 A P 60.625 74.232 5.603 O3' 57.699 71.685 2.277 37 U P 56.243 72.279 2.578 O3' 51.908 69.208 2.412 38 U P 50.802 70.359 2.585 O3' 45.734 69.417 2.968 39 G P 45.602 68.666 1.559 O3' 45.867 63.217 1.244 40 C P 44.319 62.794 1.108 O3' 42.880 57.905 1.657 41 A P 43.629 57.031 0.554 O3' 46.376 53.640 3.384 42 C P 46.252 52.240 2.627 O3' 45.858 48.034 5.703 43 U P 46.097 47.043 4.462 O3' 50.193 47.932 6.913 44 C P 50.258 49.538 6.874 O3' 53.975 51.664 8.959 45 C P 53.831 53.159 8.375 O3' 57.856 56.089 6.767 46 G P 57.354 57.292 5.817 O3' 62.652 58.689 3.835 47 G P 64.080 58.650 4.570 O3' 67.749 61.755 3.293 48 G P 68.948 61.410 4.299 O3' 72.334 64.807 5.855 49 U P 73.452 64.084 6.752 O3' 75.844 66.220 10.424 50 U P 76.761 65.145 11.172 O3' 77.805 64.134 16.639 51 G P 78.589 62.737 16.590 O3' 77.715 59.896 20.821 52 G P 78.401 58.484 20.475 O3' 76.058 54.449 22.840 53 U P 76.871 53.103 22.495 O3' 74.485 48.508 22.305 54 G P 75.588 47.450 21.818 O3' 73.787 43.260 19.103 55 G P 75.017 42.251 18.869 O3' 73.693 38.705 14.242 56 U P 73.486 37.147 14.562 O3' 78.737 35.105 12.647 57 A P 79.428 35.884 11.437 O3' 80.219 40.493 14.169 58 U P 79.725 39.500 15.321 O3' 83.822 35.312 14.856 59 A P 85.160 36.003 14.299 O3' 85.806 35.547 9.114 60 U P 87.374 35.209 9.039 O3' 90.406 38.661 5.610 61 U P 92.000 38.592 5.413 O3' 95.635 42.212 7.159 62 A P 96.339 41.607 8.471 O3' 99.464 45.974 9.715 63 C P 100.742 45.269 10.394 O3' 102.288 44.975 15.139 64 C P 103.321 43.750 14.991 O3' 103.829 40.314 18.733 65 U P 105.082 39.459 18.203 O3' 105.698 34.538 19.569 66 G P 106.923 33.827 18.816 O3' 107.312 29.106 15.573 67 G P 108.796 29.318 14.992 O3' 108.862 26.677 9.854 68 U P 109.792 26.890 8.564 O3' 109.004 26.130 3.894 69 A P 110.461 26.450 3.299 O3' 111.417 28.005 -1.382 70 C P 112.996 28.285 -1.331 O3' 115.993 33.017 -2.860 71 G P 117.473 32.920 -2.245 O3' 120.125 37.283 -0.990 72 G P 121.340 37.042 0.034 O3' 123.641 39.895 2.895 73 G P 124.746 38.727 2.761 O3' 126.981 38.121 7.005 74 G P 128.047 36.923 7.126 O3' 130.200 34.937 11.203 75 G P 130.946 33.648 10.599 O3' 131.171 29.055 12.890 76 A P 132.397 28.767 11.886 O3' 129.455 25.394 8.249 77 A P 127.883 25.709 8.110 O3' 124.425 21.944 9.649 78 A P 122.932 22.542 9.688 O3' 119.333 21.748 13.306 79 C P 118.284 22.707 12.548 O3' 117.291 26.882 15.977 80 U P 116.148 27.959 15.631 O3' 116.984 32.757 17.655 81 U P 115.780 33.760 17.297 O3' 116.363 39.179 15.257 82 C P 115.083 39.932 14.653 O3' 114.688 43.833 10.356 83 G P 113.157 44.051 9.931 O3' 111.600 45.207 5.199 84 U P 110.035 45.122 4.843 O3' 107.605 42.977 -0.045 85 G P 106.991 44.463 -0.044 O3' 106.043 45.203 -5.365 86 G P 106.576 46.632 -5.861 O3' 106.055 47.820 -10.914 87 U P 106.866 49.208 -10.949 O3' 105.819 53.274 -13.882 88 G P 106.957 54.341 -13.495 O3' 106.112 59.566 -13.579 89 G P 107.198 60.422 -12.761 O3' 105.779 64.830 -10.195 90 C P 106.974 65.476 -9.337 O3' 105.401 68.512 -5.161 91 C P 106.601 69.256 -4.391 O3' 108.356 69.253 1.226 92 G P 109.786 69.996 1.271 O3' 111.607 64.970 0.512 57 syn 73 syn 76 syn 92 syn 15 68 - - c 17 66 + + c 18 65 - - c 19 64 + + c 20 63 W W c 21 62 S H t 22 60 H W t 23 59 H W t 26 55 W W c 27 54 + + c 28 53 - - c 29 52 + + c 30 51 + + c 31 50 - - c 32 49 - - c 33 48 + + c 34 47 + + c 35 46 + + c 69 84 - - c 70 83 + + c 71 82 + + c 72 81 W W c 74 79 + + c 75 78 W H t 24 57 ! ! ! 27 55 ! ! ! 73 80 ! ! ! 10 25 ! ! ! 15 85 ! ! ! 39 40 ! ! ! 43 44 ! ! ! 26 55 10 69 84 7 17 66 5 22 60 2 SG1 9 10 SG2 14 16 SG3 24 25 SG4 36 45 SG5 56 58 SG6 61 61 SG7 67 68 SG8 76 77 SG9 88 88 SG10 91 92 1 26.696 401.438 2 39.655 390.315 3 52.614 379.192 4 65.573 368.069 5 78.532 356.945 6 91.491 345.822 7 104.450 334.699 8 117.409 323.576 9 137.484 317.582 10 145.776 311.562 11 154.068 305.542 12 167.888 295.509 13 181.708 285.476 14 187.728 293.768 15 193.748 302.060 16 199.768 310.352 17 170.500 160.177 18 170.500 177.255 19 170.500 194.333 20 170.500 211.411 21 170.500 228.489 22 170.500 262.646 23 170.500 279.724 24 139.880 315.529 25 141.783 325.597 26 143.687 335.666 27 146.859 352.447 28 150.031 369.228 29 153.204 386.008 30 156.376 402.789 31 159.548 419.570 32 162.720 436.351 33 165.893 453.132 34 169.065 469.913 35 172.237 486.694 36 163.152 501.062 37 161.463 517.978 38 167.528 533.859 39 180.061 545.344 40 196.411 550.000 41 213.115 546.842 42 226.637 536.539 43 234.113 521.272 44 233.962 504.273 45 226.214 489.141 46 212.511 479.080 47 209.339 462.299 48 206.167 445.518 49 202.994 428.738 50 199.822 411.957 51 196.650 395.176 52 193.478 378.395 53 190.305 361.614 54 187.133 344.833 55 183.961 328.052 56 182.057 317.984 57 180.154 307.915 58 178.251 297.847 59 129.512 279.724 60 129.512 262.646 61 129.512 245.567 62 129.512 228.489 63 129.512 211.411 64 129.512 194.333 65 129.512 177.255 66 129.512 160.177 67 109.019 126.021 68 119.265 126.021 69 129.512 126.021 70 129.512 108.943 71 129.512 91.865 72 129.512 74.787 73 129.512 57.709 74 129.512 40.631 75 129.512 23.553 76 137.561 0.000 77 162.451 0.000 78 170.500 23.553 79 170.500 40.631 80 170.500 57.709 81 170.500 74.787 82 170.500 91.865 83 170.500 108.943 84 170.500 126.021 85 209.348 265.409 86 223.168 255.376 87 236.989 245.343 88 250.809 235.310 89 278.449 215.243 90 292.269 205.210 91 300.561 199.190 92 308.853 193.170 2 90 + + c 3 89 + + c 4 89 W W c 5 87 - - c 6 86 + + c 7 85 + + c 9 13 + + c 10 12 - - c 11 11 + + c 2 90 2 5 87 3 9 13 3 1 25 + + c 2 8 H S t 3 7 W W c 4 6 + + c 5 5 - - c 6 4 + + c 7 3 - - c 8 2 + + c 9 1 + + c 3 8 ! ! ! 2 8 8