1 38 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 GGGUGACUCC AGAGGUCGAG AGACCGGAGA UAUCACCC LOOP1 18 21 Crystallography ? ? Angstroms 1 G O3' 58.841 -20.216 49.245 2 G P 58.498 -19.069 48.169 O3' 58.726 -19.722 43.209 3 G P 58.260 -18.256 42.733 O3' 56.019 -17.271 38.442 4 U P 55.771 -15.687 38.555 O3' 52.254 -13.367 36.004 5 G P 52.531 -11.871 36.522 O3' 49.050 -8.451 36.576 6 A P 49.907 -7.287 37.316 O3' 45.182 -7.448 40.239 7 C P 43.625 -7.041 40.374 O3' 41.059 -8.904 44.645 8 U P 39.498 -8.635 44.369 O3' 36.145 -7.991 48.365 9 C P 34.760 -7.599 47.636 O3' 31.115 -4.742 49.413 10 C P 30.091 -4.813 48.174 O3' 27.324 -0.864 46.744 11 A P 26.552 -0.786 45.336 O3' 25.555 4.389 42.791 12 G P 25.000 4.647 41.304 O3' 26.038 9.859 40.157 13 A P 25.491 9.802 38.628 O3' 27.660 13.863 41.163 14 G P 27.377 15.212 41.998 O3' 29.047 13.041 46.848 15 G P 29.482 13.995 48.080 O3' 34.422 13.603 50.395 16 U P 34.920 14.853 51.292 O3' 39.841 16.471 51.178 17 C P 39.796 17.850 51.997 O3' 42.832 21.641 51.073 18 G P 42.154 22.745 52.039 O3' 43.751 27.849 50.395 19 A P 43.196 29.343 50.406 O3' 39.346 32.314 49.749 20 G P 38.125 31.572 49.011 O3' 36.913 31.960 43.966 21 A P 35.966 30.776 43.422 O3' 36.057 29.561 38.014 22 G P 35.419 28.275 37.248 O3' 39.461 24.558 34.927 23 A P 39.387 23.076 34.300 O3' 43.040 19.654 35.450 24 C P 42.549 18.351 34.646 O3' 43.624 13.807 36.299 25 C P 42.939 12.926 35.138 O3' 41.585 8.114 38.724 26 G P 41.362 6.522 38.739 O3' 37.713 8.876 42.364 27 G P 37.855 8.865 43.970 O3' 35.330 9.662 48.138 28 A P 36.565 9.349 49.130 O3' 36.723 6.423 53.129 29 G P 38.174 6.852 53.674 O3' 42.446 3.104 53.914 30 A P 44.035 3.365 53.864 O3' 44.418 -1.948 55.625 31 U P 45.598 -2.615 56.483 O3' 48.285 -6.556 55.812 32 A P 49.629 -6.767 56.665 O3' 46.838 -11.532 55.802 33 U P 46.327 -13.069 55.878 O3' 41.998 -13.939 52.422 34 C P 41.416 -15.270 51.705 O3' 38.377 -14.832 47.311 35 A P 38.166 -16.320 46.738 O3' 37.678 -17.372 41.860 36 C P 37.637 -18.979 41.942 O3' 41.546 -22.394 39.638 37 C P 42.040 -23.813 40.217 O3' 46.200 -26.200 38.491 38 C P 46.158 -27.547 39.370 O3' 50.232 -29.975 41.074 1 38 + + c 2 37 + + c 3 36 + + c 4 35 - - c 5 34 + + c 6 33 - - c 7 29 + + c 8 28 - - c 9 27 + + c 10 26 + + c 14 25 + + c 15 24 + + c 16 23 - - c 17 22 + + c 6 7 ! ! ! 11 12 ! ! ! 14 24 ! ! ! 14 27 ! ! ! 1 38 6 7 29 4 14 25 4 SG1 11 13 SG2 18 21 SG3 30 32 1 550.000 0.000 2 550.000 23.772 3 550.000 47.544 4 550.000 71.317 5 550.000 95.089 6 550.000 118.861 7 286.641 231.636 8 281.048 208.532 9 275.455 185.427 10 269.861 162.322 11 266.505 148.459 12 263.149 134.596 13 259.793 120.733 14 102.068 379.225 15 89.926 399.663 16 77.785 420.100 17 65.644 440.538 18 54.578 465.459 19 28.599 473.736 20 5.157 459.810 21 0.000 433.035 22 16.593 411.399 23 28.734 390.961 24 40.876 370.523 25 53.017 350.085 26 214.410 175.746 27 220.003 198.851 28 225.596 221.956 29 231.190 245.061 30 492.947 161.651 31 492.947 147.388 32 492.947 133.124 33 492.947 118.861 34 492.947 95.089 35 492.947 71.317 36 492.947 47.544 37 492.947 23.772 38 492.947 0.000