1 12 1 2 3 4 5 6 7 8 9 10 11 12 GAUCACUUCG GU Crystallography ? ? Angstroms 1 G O3' 16.577 -0.365 15.096 2 A P 15.163 0.338 15.350 O3' 14.630 5.374 16.202 3 U P 13.050 5.295 16.526 O3' 10.065 9.004 14.167 4 C P 8.500 8.624 14.094 O3' 5.383 10.617 10.525 5 A P 3.919 10.036 10.870 O3' 0.454 9.940 7.189 6 C P -0.743 9.247 7.976 O3' -3.850 6.246 5.177 7 U P -4.885 5.402 6.072 O3' -6.355 0.526 5.344 8 U P -7.209 -0.236 6.454 O3' -9.052 -4.734 6.593 9 C P -9.954 -4.472 7.892 O3' -10.823 -8.350 10.715 10 G P -11.673 -7.876 11.990 O3' -10.786 -7.785 17.594 11 G P -11.362 -6.737 18.638 O3' -9.997 -5.389 23.039 12 U P -11.135 -4.302 23.370 O3' -10.619 -0.221 26.344 SG1 1 4 1 111.864 0.000 2 111.864 27.966 3 111.864 55.932 4 111.864 83.898 5 111.864 111.864 6 111.864 158.475 7 111.864 205.085 8 111.864 251.695 9 111.864 298.305 10 111.864 344.915 11 111.864 391.525 12 111.864 438.136 1 12 13 14 15 16 17 18 19 20 21 22 23 24 GAUCACUU CGGU Crystallography ? ? Angstroms 1 G O3' -21.335 7.471 7.904 2 A P -19.763 7.828 8.065 O3' -18.313 12.542 9.660 3 U P -16.726 12.398 9.442 O3' -13.695 15.089 12.669 4 C P -12.206 14.597 12.331 O3' -8.474 14.430 15.633 5 A P -7.180 13.575 15.220 O3' -3.998 9.859 17.907 6 C P -2.956 8.769 17.381 O3' -0.425 5.511 20.465 7 U P 0.518 4.678 19.475 O3' 1.456 -0.244 20.050 8 U P 2.317 -0.876 18.861 O3' 3.979 -5.448 18.662 9 C P 4.865 -5.361 17.337 O3' 5.647 -9.037 14.276 10 G P 6.400 -8.383 13.022 O3' 4.957 -8.501 7.470 11 G P 5.839 -7.633 6.465 O3' 4.015 -6.210 1.919 12 U P 5.410 -5.678 1.351 O3' 5.724 -1.849 -1.893 SG1 1 4 1 0.000 550.000 2 0.000 522.034 3 0.000 494.068 4 0.000 466.102 5 0.000 438.136 6 0.000 391.525 7 0.000 344.915 8 0.000 298.305 9 0.000 251.695 10 0.000 205.085 11 0.000 158.475 12 0.000 111.864 5 12 - - c 6 11 + + c 7 10 W W c 10 7 W W c 11 6 + + c 12 5 - - c 8 9 ! ! ! 9 8 ! ! ! 5 12 8