1 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 GGGUCUUCGG GUCC LOOP1 7 8 Crystallography ? ? Angstroms 1 G O3' 1.075 -3.409 10.218 2 G P 1.700 -2.010 9.719 O3' 6.322 -2.431 6.694 3 G P 6.707 -1.237 5.679 O3' 8.277 -1.928 0.713 4 U P 8.444 -0.452 0.087 O3' 6.243 1.179 -4.408 5 C P 6.590 2.752 -4.392 O3' 3.337 6.390 -6.526 6 U P 3.902 7.799 -5.984 O3' 0.271 11.537 -4.481 7 U P 0.806 12.830 -3.682 O3' -3.725 14.372 -0.144 8 C P -3.677 14.434 1.465 O3' -3.596 9.225 4.187 9 G P -4.433 9.098 5.564 O3' -7.972 7.036 3.845 10 G P -6.903 5.990 4.454 O3' -9.628 2.047 1.316 11 G P -9.456 0.447 1.202 O3' -8.643 -1.514 -3.735 12 U P -8.569 -3.120 -3.646 O3' -4.455 -5.820 -5.717 13 C P -5.005 -7.286 -5.331 O3' -1.496 -11.136 -4.021 14 C P -2.757 -12.140 -3.954 O3' -1.232 -15.443 0.243 9 syn 1 14 + + c 2 13 + + c 3 12 W W c 4 11 W W c 5 10 + + c 6 9 S W t 6 10 W W c 1 14 6 SG1 7 8 1 206.925 0.000 2 206.925 86.219 3 206.925 172.438 4 206.925 258.657 5 206.925 344.876 6 206.925 431.095 7 166.291 550.000 8 40.634 550.000 9 0.000 431.095 10 0.000 344.876 11 0.000 258.657 12 0.000 172.438 13 0.000 86.219 14 0.000 0.000