1 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 GGCGUCACAC CUUC Crystallography ? ? Angstroms 1 G P 6.265 17.467 -3.357 O3' 4.117 15.151 0.933 2 G P 3.650 13.626 0.634 O3' -0.756 11.356 2.780 3 C P -1.094 9.856 2.266 O3' -5.840 7.890 1.160 4 G P -5.700 6.398 0.537 O3' -9.567 4.324 -2.724 5 U P -9.203 2.907 -3.433 O3' -10.680 1.663 -8.562 6 C P -10.328 0.159 -9.067 O3' -8.334 -0.776 -14.042 7 A P -7.681 -2.228 -14.356 O3' -3.626 -2.812 -17.931 8 C P -3.103 -4.342 -18.042 O3' 1.712 -6.217 -17.917 9 A P 1.534 -7.827 -17.814 O3' 5.120 -10.868 -15.011 10 C P 4.746 -12.417 -14.697 O3' 5.975 -14.874 -9.968 11 C P 5.496 -16.420 -9.828 O3' 3.369 -18.454 -5.083 12 U P 2.478 -19.826 -4.998 O3' -2.572 -20.483 -2.857 13 U P -3.485 -21.822 -2.894 O3' -9.452 -21.401 -3.415 14 C P -9.928 -21.906 -4.883 O3' -10.297 -17.895 -9.430 SG1 13 14 1 0.000 0.000 2 0.000 41.667 3 0.000 83.333 4 0.000 125.000 5 0.000 166.667 6 0.000 208.333 7 0.000 250.000 8 0.000 333.333 9 0.000 375.000 10 0.000 416.667 11 0.000 458.333 12 0.000 500.000 13 0.000 525.000 14 0.000 550.000 1 13 15 16 17 18 19 20 21 22 23 24 25 26 27 GGGUGA AGUCGCC Crystallography ? ? Angstroms 1 G P -11.749 -17.310 -9.841 O3' -13.079 -12.679 -6.614 2 G P -12.701 -11.105 -6.535 O3' -9.432 -8.366 -2.340 3 G P -8.528 -7.016 -2.293 O3' -3.819 -6.892 0.652 4 U P -2.878 -5.565 0.591 O3' 2.680 -6.128 0.164 5 G P 3.500 -4.726 0.093 O3' 7.567 -3.739 -2.275 6 A P 7.978 -2.308 -1.646 O3' 8.800 2.987 -3.488 7 A P 8.373 4.523 -3.787 O3' 8.451 7.799 -8.888 8 G P 7.525 8.884 -9.661 O3' 4.014 9.046 -14.370 9 U P 2.827 10.116 -14.635 O3' -1.473 9.652 -17.557 10 C P -1.996 11.183 -17.440 O3' -7.174 12.272 -16.199 11 G P -7.505 13.719 -15.534 O3' -11.648 14.435 -11.949 12 C P -11.829 15.905 -11.276 O3' -13.047 15.905 -5.401 13 C P -13.787 17.094 -4.574 O3' -11.638 20.771 -1.404 1 syn SG1 6 6 1 100.000 500.000 2 100.000 458.333 3 100.000 416.667 4 100.000 375.000 5 100.000 333.333 6 100.000 291.667 7 100.000 250.000 8 100.000 208.333 9 100.000 166.667 10 100.000 125.000 11 100.000 83.333 12 100.000 41.667 13 100.000 0.000 1 13 + + c 2 12 + + c 3 11 + + c 4 10 + + c 5 9 W W c 6 8 + + c 7 7 W W c 8 5 + + c 9 4 - - c 10 3 + + c 11 2 + + c 12 1 S W t 1 13 7 8 5 5