1 72 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 UCCGUGAUAG UUPAAuGGuC AGAAUGGGCG CPUGUCgCGU GCCAGAUcGG GGuPCAAUUC CCCGUCGCGG AG 13 PSU 16 H2U 19 H2U 32 PSU 37 1MG 48 5MC 53 5MU 54 PSU LOOP1 53 59 LOOP2 15 20 LOOP3 33 37 Crystallography ? ? Angstroms 1 U P 37.432 3.651 -3.905 O3' 36.057 4.566 -8.069 2 C P 35.474 5.792 -8.896 O3' 35.303 7.379 -13.678 3 C P 33.774 7.542 -14.188 O3' 31.160 8.093 -18.214 4 G P 29.641 8.152 -17.654 O3' 26.181 6.392 -21.080 5 U P 24.616 6.163 -20.813 O3' 20.751 3.425 -20.772 6 G P 19.378 3.874 -20.092 O3' 15.514 0.520 -17.533 7 A P 14.603 1.768 -17.044 O3' 12.297 -0.415 -12.182 8 U P 11.246 -1.602 -12.470 O3' 6.281 -0.018 -10.674 9 A P 6.640 -1.411 -9.947 O3' 1.769 -3.100 -7.065 10 G P 2.809 -3.193 -5.827 O3' 5.721 -7.153 -6.575 11 U P 6.481 -7.113 -7.989 O3' 8.028 -10.028 -11.330 12 U P 8.684 -9.317 -12.623 O3' 9.047 -9.225 -17.440 13 P O3' 7.170 -4.458 -21.908 P 9.644 -7.874 -18.042 14 A P 7.650 -3.069 -22.534 O3' 5.072 1.509 -24.977 15 A P 6.592 2.047 -25.224 O3' 6.130 7.600 -25.589 16 u P 7.646 7.748 -26.093 O3' 9.600 13.463 -25.317 17 G P 9.790 14.171 -23.862 O3' 4.375 15.591 -21.768 18 G P 3.026 15.741 -22.643 O3' -2.681 15.040 -21.669 19 u P -3.814 14.946 -22.806 O3' -6.265 15.910 -17.914 20 C P -5.220 15.606 -16.702 O3' -3.952 10.741 -13.524 21 A P -2.622 9.814 -13.555 O3' -3.307 6.561 -16.695 22 G P -4.071 5.162 -16.572 O3' -5.496 1.972 -20.220 23 A P -6.206 0.728 -19.471 O3' -5.354 -4.780 -20.986 24 A P -6.460 -5.485 -20.041 O3' -5.189 -10.322 -19.791 25 U P -5.862 -11.105 -18.536 O3' -4.539 -14.490 -15.295 26 G P -5.505 -14.757 -14.023 O3' -5.894 -14.874 -8.882 27 G P -7.466 -14.627 -8.564 O3' -9.112 -11.910 -4.293 28 G P -10.601 -12.522 -4.464 O3' -14.186 -9.788 -2.582 29 C P -15.502 -10.585 -3.121 O3' -19.677 -8.075 -4.732 30 G P -20.891 -9.005 -5.277 O3' -24.622 -8.573 -9.741 31 C P -25.583 -9.811 -10.069 O3' -27.029 -9.935 -14.644 32 P O3' -28.298 -14.654 -17.742 P -28.019 -11.143 -14.221 33 U P -29.701 -15.210 -17.221 O3' -30.129 -19.922 -17.465 34 G P -31.635 -20.044 -16.930 O3' -31.011 -21.060 -11.753 35 U P -29.708 -20.109 -11.820 O3' -25.659 -21.336 -9.361 36 C P -24.135 -20.835 -9.343 O3' -19.321 -21.876 -9.770 37 g P -18.697 -20.636 -10.617 O3' -15.107 -21.784 -14.877 38 C P -14.835 -20.852 -16.176 O3' -13.474 -19.631 -19.691 39 G P -13.018 -18.148 -20.090 O3' -15.946 -14.182 -22.841 40 U P -14.656 -13.219 -22.937 O3' -16.484 -8.561 -22.241 41 G P -15.268 -7.654 -21.664 O3' -16.264 -3.183 -18.931 42 C P -15.009 -2.416 -18.271 O3' -15.185 0.654 -14.212 43 C P -14.059 1.287 -13.257 O3' -12.305 2.336 -8.981 44 A P -10.849 3.011 -9.148 O3' -7.234 2.328 -5.644 45 G P -6.250 3.322 -6.443 O3' -1.446 1.439 -5.608 46 A P -0.815 2.789 -6.243 O3' 4.697 3.657 -7.439 47 U P 4.702 5.263 -7.291 O3' 9.434 4.457 -10.889 48 c P 11.046 4.586 -10.875 O3' 11.253 4.465 -5.817 49 G P 10.852 5.988 -5.543 O3' 12.482 8.178 -1.986 50 G P 12.186 9.728 -2.168 O3' 15.029 14.618 -1.041 51 G P 13.940 15.721 -1.478 O3' 16.057 19.760 -3.405 52 G P 15.190 20.749 -4.324 O3' 16.838 23.516 -9.170 53 u O3' 15.049 26.043 -13.998 P 15.536 24.466 -9.313 54 P O3' 10.184 27.211 -16.592 P 13.729 26.857 -13.521 55 C P 9.424 28.190 -15.556 O3' 5.817 25.628 -13.382 56 A P 6.906 24.475 -13.102 O3' 5.160 19.694 -13.466 57 A P 6.238 18.571 -13.088 O3' 6.746 13.642 -14.687 58 U P 6.360 12.540 -13.582 O3' 10.853 10.178 -14.596 59 U P 11.497 11.636 -14.870 O3' 13.542 11.480 -20.387 60 C P 15.129 11.229 -20.176 O3' 18.820 13.948 -19.772 61 C P 19.954 13.470 -18.748 O3' 23.225 16.265 -15.442 62 C P 23.959 14.827 -15.234 O3' 26.155 14.447 -10.061 63 C P 26.793 12.959 -10.103 O3' 27.304 10.719 -5.763 64 G P 27.505 9.136 -6.128 O3' 26.356 5.119 -3.243 65 U P 26.519 3.558 -3.596 O3' 24.612 -0.633 -2.919 66 C P 25.427 -1.678 -3.850 O3' 23.615 -5.604 -6.479 67 G P 24.727 -6.188 -7.477 O3' 23.991 -8.628 -11.772 68 C P 25.124 -8.891 -12.879 O3' 25.848 -8.691 -17.526 69 G P 27.348 -9.273 -17.346 O3' 30.360 -7.879 -20.814 70 G P 31.966 -7.838 -20.625 O3' 35.866 -5.251 -22.742 71 A P 37.365 -5.213 -22.143 O3' 41.553 -2.229 -21.229 72 G P 42.556 -3.188 -20.383 O3' 45.392 -0.538 -17.149 9 syn 57 syn 1 71 - - c 2 70 + + c 3 69 + + c 4 68 + + c 5 67 W W c 6 66 + + c 7 65 - - c 8 14 W H t 9 23 H H t 10 25 W W c 10 45 H S c 11 24 - - c 12 23 - - c 13 22 W W c 14 21 W S c 15 47 W W t 22 46 H W t 26 44 W W c 27 43 + + c 28 42 + + c 29 41 + + c 30 40 W W c 31 39 + + c 48 64 + + c 49 63 + + c 50 62 + + c 51 61 + + c 52 60 + + c 53 57 W H t 17 54 ! ! ! 32 38 ! ! ! 8 21 ! ! ! 8 46 ! ! ! 16 17 ! ! ! 20 21 ! ! ! 33 35 ! ! ! 33 36 ! ! ! 59 60 ! ! ! 1 71 7 48 64 5 10 25 5 26 44 7 SG1 8 9 SG2 15 20 SG3 33 37 SG4 45 47 SG5 53 59 SG6 72 72 1 22.369 11.095 2 44.910 14.780 3 67.452 18.465 4 89.994 22.150 5 112.535 25.835 6 135.077 29.520 7 157.618 33.205 8 159.829 19.680 9 162.040 6.155 10 266.685 312.456 11 266.685 289.615 12 266.685 266.774 13 266.685 243.933 14 266.685 221.092 15 276.049 199.174 16 270.049 176.107 17 251.194 161.528 18 227.359 161.528 19 208.503 176.107 20 202.504 199.174 21 211.867 221.092 22 211.867 243.933 23 211.867 266.774 24 211.867 289.615 25 211.867 312.456 26 211.867 358.137 27 211.867 380.978 28 211.867 403.819 29 211.867 426.660 30 211.867 449.500 31 211.867 472.341 32 211.867 495.182 33 205.168 518.975 34 216.223 541.083 35 239.276 550.000 36 262.330 541.083 37 273.384 518.975 38 266.685 495.182 39 266.685 472.341 40 266.685 449.500 41 266.685 426.660 42 266.685 403.819 43 266.685 380.978 44 266.685 358.137 45 209.335 0.000 46 207.124 13.525 47 204.913 27.050 48 202.702 40.575 49 225.243 44.260 50 247.785 47.945 51 270.326 51.630 52 292.868 55.315 53 314.759 47.320 54 337.369 52.972 55 352.922 70.328 56 356.071 93.419 57 345.733 114.306 58 325.462 125.806 59 302.230 123.964 60 284.024 109.414 61 261.483 105.730 62 238.941 102.045 63 216.399 98.360 64 193.858 94.675 65 148.775 87.305 66 126.233 83.620 67 103.691 79.935 68 81.150 76.250 69 58.608 72.565 70 36.067 68.880 71 13.525 65.195 72 0.000 62.984