1 57 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 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 GGGCGGCCUU CGGGCUAGAC GGUGGGAGAG GCUUCGGCUG GUCCACCCGU GACGCUC LOOP1 9 12 LOOP2 34 35 Crystallography ? ? Angstroms 1 G O3' 21.104 7.419 30.473 2 G P 19.901 7.945 31.398 O3' 20.018 6.218 36.213 3 G P 18.528 6.769 36.464 O3' 17.357 8.331 41.136 4 C P 15.932 9.016 40.864 O3' 14.709 12.689 44.381 5 G P 13.320 13.391 43.995 O3' 12.252 19.142 44.096 6 G P 10.702 19.201 43.663 O3' 8.698 22.960 44.245 7 C P 7.282 22.225 44.069 O3' 2.996 24.971 44.673 8 C P 1.911 23.814 44.398 O3' -2.525 24.940 42.108 9 U P -3.232 23.498 41.981 O3' -5.871 21.824 38.242 10 U P -6.149 20.251 38.433 O3' -8.085 18.417 33.290 11 C P -7.378 17.113 32.687 O3' -2.479 17.048 29.617 12 G P -2.479 16.239 28.232 O3' -0.934 21.262 25.614 13 G P 0.548 21.867 25.753 O3' 0.147 27.183 27.281 14 G P 1.136 28.339 27.795 O3' 1.067 32.182 31.934 15 C P 2.399 33.054 31.748 O3' 4.244 34.710 36.123 16 U P 5.539 35.658 36.086 O3' 8.943 36.080 40.596 17 A P 10.158 37.008 41.077 O3' 13.894 33.147 44.265 18 G P 15.427 33.522 43.985 O3' 19.091 29.938 43.373 19 A P 20.381 30.645 42.722 O3' 23.237 29.564 38.618 20 C P 24.108 30.912 38.538 O3' 25.031 32.891 33.769 21 G P 25.757 34.297 34.022 O3' 24.913 38.003 30.267 22 G P 25.641 39.353 30.758 O3' 24.388 44.016 29.700 23 U P 25.607 44.856 30.330 O3' 25.325 49.046 32.800 24 G P 26.848 49.361 33.204 O3' 27.930 51.459 37.420 25 G P 29.441 51.410 37.973 O3' 31.495 50.409 43.187 26 G P 33.080 50.162 43.164 O3' 34.639 48.044 47.414 27 A P 36.226 48.144 47.198 O3' 39.510 45.236 48.656 28 G P 40.203 44.769 50.033 O3' 42.283 39.479 49.088 29 A P 43.475 39.390 50.155 O3' 46.972 37.871 45.713 30 G P 45.647 38.370 44.025 O3' 47.268 33.618 42.149 31 G P 48.754 34.037 41.709 O3' 50.001 32.103 37.004 32 C P 51.530 32.573 36.783 O3' 53.297 33.929 32.056 33 U P 54.731 34.610 32.280 O3' 56.263 38.560 29.443 34 U P 57.644 39.036 30.118 O3' 58.695 44.513 28.146 35 C P 59.064 45.581 29.291 O3' 55.374 48.702 32.234 36 G P 55.459 50.285 31.970 O3' 49.988 50.568 29.799 37 G P 48.999 50.305 31.046 O3' 45.045 46.571 29.531 38 C P 44.292 46.020 28.208 O3' 42.586 41.407 26.698 39 U P 41.099 40.994 27.144 O3' 39.608 36.391 30.207 40 G P 38.114 36.404 30.771 O3' 36.443 32.879 33.767 41 G P 35.046 33.468 34.271 O3' 33.745 31.683 39.310 42 U P 32.347 32.199 39.908 O3' 31.722 33.511 44.790 43 C P 30.131 33.556 44.679 O3' 27.638 36.786 48.161 44 C P 26.076 36.815 47.775 O3' 23.363 40.936 47.997 45 A P 21.863 40.944 47.418 O3' 18.736 44.791 46.205 46 C P 17.368 44.151 45.649 O3' 15.336 47.589 41.563 47 C P 14.124 48.437 42.186 O3' 12.125 44.576 38.783 48 C P 11.250 44.228 37.484 O3' 11.958 43.829 32.586 49 G P 11.193 42.419 32.463 O3' 12.268 39.085 28.801 50 U P 11.201 37.929 29.107 O3' 12.324 32.963 27.476 51 G P 10.905 32.224 27.683 O3' 11.503 27.984 31.876 52 A P 11.047 26.453 31.833 O3' 13.331 22.480 33.751 53 C P 14.719 21.691 33.673 O3' 19.937 23.844 32.503 54 G P 21.236 24.044 33.425 O3' 22.279 24.593 38.383 55 C P 23.733 23.932 38.594 O3' 25.448 21.410 42.734 56 U P 26.796 20.628 42.348 O3' 28.165 16.056 43.744 57 C P 29.602 15.660 43.168 O3' 32.090 10.354 41.816 12 syn 36 syn 47 syn 53 syn 1 57 + + c 2 56 W W c 3 55 + + c 4 54 + + c 6 15 + + c 7 14 + + c 8 13 + + c 9 12 S W t 16 52 W H t 18 51 H S t 18 53 + + c 19 50 - - c 20 49 + + c 21 48 + + c 22 46 + + c 23 45 - - c 24 44 + + c 25 43 + + c 26 42 W W c 27 41 W W c 28 40 W W c 30 39 W W c 31 38 + + c 32 37 + + c 33 36 S W t 51 53 S H c 5 53 ! ! ! 10 11 ! ! ! 46 47 ! ! ! 47 48 ! ! ! 53 54 ! ! ! 1 57 4 6 15 3 19 50 3 22 46 7 30 39 4 SG1 5 5 SG2 9 12 SG3 16 18 SG4 29 29 SG5 34 35 SG6 47 47 SG7 51 53 1 223.712 211.417 2 219.490 187.202 3 215.268 162.987 4 211.047 138.772 5 208.514 124.242 6 3.324 98.236 7 3.324 73.655 8 3.324 49.075 9 0.000 21.078 10 18.724 0.000 11 46.917 0.000 12 65.641 21.078 13 62.317 49.075 14 62.317 73.655 15 62.317 98.236 16 77.065 98.236 17 91.813 98.236 18 106.561 98.236 19 62.317 147.396 20 62.317 171.977 21 62.317 196.557 22 62.317 245.718 23 62.317 270.298 24 62.317 294.878 25 62.317 319.459 26 62.317 344.039 27 62.317 368.619 28 62.317 393.199 29 62.317 417.780 30 62.317 442.360 31 62.317 466.940 32 62.317 491.521 33 62.317 516.101 34 50.732 550.000 35 14.909 550.000 36 3.324 516.101 37 3.324 491.521 38 3.324 466.940 39 3.324 442.360 40 3.324 393.199 41 3.324 368.619 42 3.324 344.039 43 3.324 319.459 44 3.324 294.878 45 3.324 270.298 46 3.324 245.718 47 3.324 221.137 48 3.324 196.557 49 3.324 171.977 50 3.324 147.396 51 145.332 105.316 52 147.865 119.845 53 150.398 134.374 54 152.931 148.903 55 157.152 173.118 56 161.374 197.333 57 165.595 221.549