1 30 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 GCGACCGAGC CAGCGAAAGU UGGGAGUCGC LOOP1 16 17 Crystallography ? ? Angstroms 1 G O3' 11.884 8.679 -7.035 2 C P 11.069 8.132 -8.314 O3' 12.255 6.545 -12.623 3 G P 10.717 6.599 -13.098 O3' 9.949 2.692 -16.906 4 A P 8.465 2.604 -17.522 O3' 6.093 -1.705 -18.793 5 C P 4.566 -1.432 -19.228 O3' 0.227 -4.265 -16.545 6 C P -1.265 -3.715 -16.800 O3' -5.168 -2.601 -12.707 7 G P -6.509 -1.857 -13.204 O3' -7.260 1.954 -8.609 8 A P -8.414 1.424 -7.618 O3' -8.841 4.268 -3.482 9 G P -10.380 4.233 -3.960 O3' -9.232 9.873 -6.041 10 C P -9.749 11.225 -5.333 O3' -6.710 10.530 -0.779 11 C P -6.892 11.829 0.152 O3' -3.682 16.529 0.988 12 A P -4.337 17.997 1.092 O3' -1.259 22.198 0.826 13 G P -2.042 23.604 0.855 O3' -1.688 27.897 -2.739 14 C P -2.905 28.952 -2.739 O3' -3.416 32.058 -6.985 15 G P -4.684 32.966 -6.584 O3' -10.293 32.721 -7.445 16 A P -11.282 32.900 -6.188 O3' -14.618 28.621 -6.496 17 A P -13.801 27.365 -7.084 O3' -16.338 25.062 -11.281 18 A P -15.589 23.657 -11.028 O3' -14.479 22.742 -16.577 19 G P -13.495 21.653 -17.240 O3' -8.191 23.430 -18.126 20 U P -7.096 22.275 -18.371 O3' -2.132 23.362 -16.724 21 U P -1.080 22.147 -16.584 O3' 3.326 22.064 -14.081 22 G P 4.059 20.635 -14.196 O3' 6.560 17.654 -9.832 23 G P 6.854 16.070 -9.818 O3' 6.554 13.485 -5.152 24 G P 6.945 11.938 -5.383 O3' 3.984 8.864 -1.735 25 A P 4.420 7.355 -1.377 O3' 1.579 2.413 -1.231 26 G P 2.536 1.157 -0.916 O3' 1.029 -3.897 -1.607 27 U P 2.329 -4.828 -1.417 O3' 4.890 -8.593 -5.119 28 C P 6.411 -8.993 -4.765 O3' 10.469 -10.295 -7.396 29 G P 11.679 -10.217 -6.336 O3' 16.418 -8.574 -7.986 30 C P 17.403 -8.583 -6.712 O3' 20.011 -3.663 -5.706 7 syn 1 30 W W c 2 29 + + c 3 28 + + c 4 27 - - c 5 26 + + c 6 25 W W c 10 23 + + c 11 22 + + c 12 21 - - c 13 20 W W c 14 19 + + c 2 30 ! ! ! 15 18 ! ! ! 15 17 ! ! ! 1 30 6 10 23 6 SG1 7 9 SG2 16 17 SG3 24 24 1 179.077 41.512 2 161.780 75.768 3 144.484 110.025 4 127.187 144.282 5 109.890 178.538 6 92.594 212.795 7 82.216 233.349 8 71.838 253.903 9 61.460 274.456 10 126.718 305.198 11 126.718 343.574 12 126.718 381.949 13 126.718 420.325 14 126.718 458.700 15 126.718 497.076 16 108.632 550.000 17 52.703 550.000 18 34.616 497.076 19 34.616 458.700 20 34.616 420.325 21 34.616 381.949 22 34.616 343.574 23 34.616 305.198 24 0.000 191.837 25 10.378 171.283 26 27.675 137.026 27 44.971 102.770 28 62.268 68.513 29 79.565 34.257 30 96.861 0.000