1 27 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 UGCUCCUAGU ACGAGAGGAC CGGAGUG LOOP1 14 15 Crystallography ? ? Angstroms 1 U O3' -27.192 53.667 -3.895 2 G P -26.580 52.305 -4.487 O3' -28.888 49.650 -8.753 3 C P -27.684 49.007 -9.597 O3' -27.435 49.017 -14.598 4 U P -25.999 48.448 -15.036 O3' -22.298 50.967 -18.447 5 C P -20.793 50.435 -18.508 O3' -17.213 53.682 -20.497 6 C P -15.763 53.037 -20.284 O3' -11.515 55.810 -19.779 7 U P -10.405 54.660 -19.671 O3' -6.687 54.846 -16.225 8 A P -5.795 53.511 -16.237 O3' -8.457 49.820 -19.856 9 G P -7.888 49.716 -21.356 O3' -6.062 45.569 -18.372 10 U P -4.742 44.741 -17.985 O3' -1.757 47.653 -14.810 11 A P -1.063 46.491 -13.940 O3' -0.691 46.180 -8.921 12 C P 0.062 44.762 -8.865 O3' -1.637 40.808 -5.963 13 G P -0.587 39.681 -6.399 O3' -1.827 34.890 -7.281 14 A P -0.304 34.489 -7.596 O3' -0.084 33.415 -12.981 15 G P -1.021 34.642 -13.427 O3' -4.918 32.285 -16.710 16 A P -6.242 33.111 -17.098 O3' -10.946 31.416 -16.810 17 G P -11.676 32.753 -17.310 O3' -14.137 36.534 -13.642 18 G P -14.748 37.838 -14.334 O3' -14.010 42.317 -11.837 19 A P -14.505 43.655 -12.589 O3' -14.528 47.430 -8.949 20 C P -14.729 49.018 -8.828 O3' -14.728 50.870 -3.797 21 C P -15.471 52.266 -4.092 O3' -13.219 56.514 -2.258 22 G P -14.237 57.625 -2.793 O3' -12.986 61.819 -5.665 23 G P -14.449 62.416 -5.958 O3' -15.089 64.625 -10.809 24 A P -16.578 65.228 -10.820 O3' -19.334 65.524 -15.130 25 G P -20.854 65.899 -14.765 O3' -25.171 64.229 -17.657 26 U P -26.459 64.895 -16.990 O3' -30.813 62.079 -16.738 27 G P -31.838 62.905 -15.808 O3' -35.417 60.783 -12.833 9 syn 2 26 W W c 3 25 + + c 4 24 - - c 5 23 + + c 6 22 + + c 9 10 S H c 10 19 W H t 11 18 H S t 12 17 + + c 13 16 S H t 7 21 ! ! ! 1 2 ! ! ! 8 20 ! ! ! 9 19 ! ! ! 2 26 6 10 19 4 SG1 1 1 SG2 8 9 SG3 14 15 SG4 20 20 SG5 27 27 1 0.000 0.000 2 0.000 23.607 3 0.000 62.951 4 0.000 102.295 5 0.000 141.640 6 0.000 180.984 7 0.000 220.329 8 0.000 259.673 9 0.000 338.362 10 0.000 377.706 11 0.000 417.051 12 0.000 456.395 13 0.000 495.740 14 18.543 550.000 15 75.884 550.000 16 94.427 495.740 17 94.427 456.395 18 94.427 417.051 19 94.427 377.706 20 94.427 299.018 21 94.427 220.329 22 94.427 180.984 23 94.427 141.640 24 94.427 102.295 25 94.427 62.951 26 94.427 23.607 27 94.427 0.000