1 27 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 GGAAGCUCGG UCUUCGGACC GGCUUCC LOOP1 14 15 Crystallography ? ? Angstroms 1 G O3' -5.567 -14.790 10.517 2 G P -6.939 -14.254 9.867 O3' -6.920 -8.606 8.991 3 A P -8.325 -8.000 8.491 O3' -8.142 -4.482 4.494 4 A P -9.577 -4.069 3.893 O3' -9.695 -3.326 -1.704 5 G P -11.082 -2.904 -2.404 O3' -11.990 -4.924 -7.279 6 C P -13.317 -4.292 -7.936 O3' -17.324 -6.604 -10.092 7 U P -16.741 -5.459 -11.061 O3' -21.346 -4.899 -8.593 8 C P -22.584 -5.398 -9.496 O3' -25.715 -8.776 -9.966 9 G P -26.672 -7.492 -10.127 O3' -31.595 -7.763 -7.334 10 G P -32.187 -6.274 -7.171 O3' -34.254 -5.038 -2.053 11 U P -34.664 -3.528 -1.670 O3' -35.244 -1.388 3.332 12 C P -35.975 0.005 2.987 O3' -34.752 4.321 5.371 13 U P -35.653 5.459 4.676 O3' -32.633 9.649 2.152 14 U P -33.812 10.744 2.060 O3' -31.065 13.412 -2.237 15 C P -30.217 13.541 -3.600 O3' -25.873 9.337 -5.347 16 G P -24.884 8.760 -6.480 O3' -21.421 7.030 -3.250 17 G P -20.354 6.355 -2.250 O3' -18.791 4.692 1.988 18 A P -18.220 3.189 1.892 O3' -19.715 -0.367 5.366 19 C P -19.386 -1.924 5.119 O3' -23.413 -5.212 7.457 20 C P -22.603 -6.585 7.685 O3' -25.006 -11.063 6.943 21 G P -23.993 -12.307 6.812 O3' -23.681 -16.130 3.887 22 G P -22.260 -16.887 3.925 O3' -19.733 -19.261 0.137 23 C P -18.204 -19.615 0.497 O3' -14.600 -19.853 -3.923 24 U P -13.135 -20.332 -3.459 O3' -9.210 -17.573 -6.560 25 U P -7.667 -17.874 -6.214 O3' -3.886 -13.862 -7.301 26 C P -2.460 -14.557 -7.027 O3' 1.278 -11.445 -4.848 27 C P 2.610 -12.325 -4.638 O3' 5.802 -12.840 -1.391 16 syn 2 26 + + c 3 25 - - c 4 24 - - c 5 23 + + c 6 22 + + c 8 21 + + c 8 22 W W c 9 20 + + c 10 19 + + c 11 18 - - c 12 17 + + c 13 16 S W t 2 26 5 8 21 6 SG1 1 1 SG2 7 7 SG3 14 15 SG4 27 27 1 101.702 0.000 2 101.702 25.425 3 101.702 67.801 4 101.702 110.177 5 101.702 152.553 6 101.702 194.929 7 101.702 237.304 8 101.702 279.680 9 101.702 322.056 10 101.702 364.432 11 101.702 406.808 12 101.702 449.183 13 101.702 491.559 14 81.731 550.000 15 19.971 550.000 16 0.000 491.559 17 0.000 449.183 18 0.000 406.808 19 0.000 364.432 20 0.000 322.056 21 0.000 279.680 22 0.000 194.929 23 0.000 152.553 24 0.000 110.177 25 0.000 67.801 26 0.000 25.425 27 0.000 0.000