1 8 1 2 3 4 5 6 7 8 GAGGUCUC Crystallography ? ? Angstroms 1 G O3' 3.310 -9.577 6.801 2 A P 2.117 -9.192 7.822 O3' 1.976 -5.578 11.325 3 G P 0.506 -5.390 11.971 O3' -1.571 -1.091 13.633 4 G P -3.148 -0.896 13.941 O3' -5.626 3.442 14.845 5 U P -7.148 3.080 15.231 O3' -11.388 4.827 13.524 6 C P -12.606 3.867 13.968 O3' -16.713 2.793 11.203 7 U P -17.583 1.572 11.803 O3' -20.315 -1.840 9.459 8 C P -20.879 -3.043 10.383 O3' -22.034 -7.739 9.028 1 0.000 0.000 2 0.000 78.571 3 0.000 157.143 4 0.000 235.714 5 0.000 314.286 6 0.000 392.857 7 0.000 471.429 8 0.000 550.000 1 8 9 10 11 12 13 14 15 16 GA GGUCUC Crystallography ? ? Angstroms 1 G O3' -8.163 -14.895 6.412 2 A P -7.651 -13.711 5.440 O3' -10.303 -11.254 1.944 3 G P -9.517 -9.997 1.302 O3' -11.516 -5.670 -0.368 4 G P -10.656 -4.334 -0.675 O3' -12.377 0.352 -1.581 5 U P -11.117 1.276 -1.973 O3' -9.675 5.623 -0.273 6 C P -8.157 5.925 -0.730 O3' -4.649 8.340 1.987 7 U P -3.154 8.190 1.394 O3' 1.202 8.107 3.785 8 C P 2.481 7.748 2.860 O3' 6.750 5.512 4.149 1 188.571 550.000 2 188.571 471.429 3 188.571 392.857 4 188.571 314.286 5 188.571 235.714 6 188.571 157.143 7 188.571 78.571 8 188.571 0.000 1 8 + + c 2 7 - - c 3 6 + + c 4 5 W W c 5 4 W W c 6 3 + + c 7 2 - - c 8 1 + + c 1 8 8