1 24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 GUGCGAAGAC GAAAGUCCGA GCGC LOOP1 11 14 Crystallography ? ? Angstroms 1 G P 225.816 -101.402 -92.157 O3' 230.376 -100.000 -93.292 2 U P 230.169 -98.882 -94.444 O3' 231.760 -98.595 -99.387 3 G P 230.825 -97.444 -100.052 O3' 229.535 -96.367 -105.109 4 C P 228.196 -95.454 -105.188 O3' 224.037 -96.083 -108.464 5 G P 222.837 -95.043 -108.137 O3' 217.574 -97.668 -107.740 6 A P 216.109 -97.038 -107.441 O3' 212.436 -101.247 -108.295 7 A P 210.843 -100.973 -108.352 O3' 207.249 -100.376 -103.789 8 G P 205.896 -99.570 -103.427 O3' 204.956 -95.992 -98.975 9 A P 204.036 -94.665 -98.844 O3' 203.855 -91.554 -94.409 10 C P 202.779 -90.340 -94.442 O3' 202.976 -85.365 -93.660 11 G P 201.402 -85.144 -93.979 O3' 200.759 -81.061 -98.334 12 A P 199.214 -80.682 -98.620 O3' 198.975 -83.954 -103.214 13 A P 200.282 -84.803 -103.652 O3' 204.700 -82.956 -107.228 14 A P 206.250 -83.427 -107.253 O3' 210.647 -80.215 -106.891 15 G P 211.414 -81.483 -107.550 O3' 215.634 -81.616 -103.493 16 U P 216.582 -82.827 -102.980 O3' 217.359 -83.907 -97.577 17 C P 218.188 -85.273 -97.303 O3' 216.708 -88.715 -93.134 18 C P 217.681 -89.997 -92.973 O3' 215.872 -94.959 -91.793 19 G P 216.939 -96.164 -91.636 O3' 216.989 -100.388 -96.109 20 A P 216.796 -101.496 -94.945 O3' 217.009 -106.895 -97.297 21 G P 218.268 -107.906 -97.203 O3' 220.043 -111.039 -101.264 22 C P 221.439 -111.772 -100.890 O3' 225.042 -112.975 -104.570 23 G P 225.791 -114.034 -103.595 O3' 230.520 -115.347 -102.756 24 C P 230.433 -116.187 -101.379 O3' 232.915 -116.041 -97.006 1 24 + + c 2 23 W W c 3 22 + + c 4 21 + + c 5 20 S H t 6 19 H S t 7 18 W W c 8 17 + + c 9 16 - - c 10 15 + + c 11 15 ! ! ! 11 14 ! ! ! 1 24 10 SG1 11 14 1 126.802 0.000 2 126.802 50.016 3 126.802 100.032 4 126.802 150.047 5 126.802 200.063 6 126.802 250.079 7 126.802 300.095 8 126.802 350.111 9 126.802 400.127 10 126.802 450.142 11 133.565 507.110 12 95.467 550.000 13 38.099 550.000 14 0.000 507.110 15 6.764 450.142 16 6.764 400.127 17 6.764 350.111 18 6.764 300.095 19 6.764 250.079 20 6.764 200.063 21 6.764 150.047 22 6.764 100.032 23 6.764 50.016 24 6.764 0.000