1 32 41 42 43 44 45 46 47 48 49 50 51 52 54 60 61 62 63 64 66 67 68 69 70 71 72 73 74 75 76 77 78 79 GGUCUGGGCG CACUUCGGUG ACGGUACAGG CC LOOP1 14 17 Crystallography ? ? Angstroms 1 G O3' -4.088 -13.537 8.317 2 G P -2.642 -13.059 8.812 O3' 1.407 -15.000 10.444 3 U P 1.307 -13.480 10.999 O3' 3.101 -9.750 7.391 4 C P 2.867 -8.260 6.822 O3' 6.838 -6.555 3.872 5 U P 6.740 -5.187 3.037 O3' 7.870 -4.669 -2.507 6 G P 7.866 -3.084 -2.772 O3' 6.749 -2.140 -7.854 7 G P 6.581 -0.601 -8.269 O3' 2.742 2.338 -10.531 8 G P 2.808 3.907 -10.111 O3' -1.938 3.930 -12.404 9 C P -3.245 4.733 -12.907 O3' -8.838 3.470 -12.536 10 G P -9.740 4.783 -12.814 O3' -13.647 6.371 -9.903 11 C P -13.658 7.898 -9.388 O3' -14.231 9.959 -4.226 12 A P -14.122 11.471 -3.699 O3' -12.169 13.963 0.944 13 C P -11.576 15.442 1.173 O3' -6.802 16.900 3.809 14 U P -6.298 18.386 3.425 O3' -1.376 19.876 3.290 15 U P -0.719 21.079 2.425 O3' 4.514 20.212 -0.016 16 C P 4.490 20.774 -1.534 O3' 3.899 15.949 -5.229 17 G P 5.029 15.352 -6.219 O3' 6.858 10.581 -3.235 18 G P 6.474 9.056 -2.850 O3' 4.699 7.241 2.484 19 U P 3.661 6.153 3.109 O3' 0.293 6.589 6.790 20 G P -0.757 6.170 7.952 O3' -5.334 3.185 5.999 21 A P -6.291 2.073 5.304 O3' -8.965 -1.615 6.552 22 C P -10.523 -1.402 6.978 O3' -13.371 -0.640 3.252 23 G P -13.525 -2.136 2.633 O3' -15.470 -3.991 -1.827 24 G P -15.196 -5.319 -0.967 O3' -10.334 -5.284 1.307 25 U P -10.363 -6.448 2.429 O3' -9.375 -10.503 0.618 26 A P -10.195 -11.273 -0.561 O3' -9.718 -10.291 -6.153 27 C P -8.985 -11.290 -7.198 O3' -5.130 -10.242 -11.541 28 A P -5.331 -11.648 -12.321 O3' 0.066 -13.750 -12.183 29 G P 0.930 -15.089 -11.917 O3' 5.436 -15.937 -8.535 30 G P 5.614 -17.343 -7.751 O3' 9.572 -17.745 -3.854 31 C P 9.262 -19.336 -3.931 O3' 8.898 -22.354 0.371 32 C P 7.478 -23.091 0.105 O3' 3.779 -23.776 1.498 7 syn 15 syn 17 syn 25 syn 1 32 + + c 2 31 + + c 3 30 W W c 4 25 H H t 4 29 + + c 5 28 - - c 6 27 + + c 7 26 W W c 8 24 W W t 9 23 + + c 10 22 + + c 11 20 + + c 12 19 - - c 13 18 + + c 14 17 S W t 6 26 ! ! ! 25 26 ! ! ! 11 20 3 8 24 3 4 29 4 SG1 1 3 SG2 14 17 SG3 21 21 SG4 25 25 SG5 30 32 1 94.237 550.000 2 94.237 527.697 3 94.237 505.395 4 94.237 483.092 5 94.237 445.921 6 94.237 408.751 7 94.237 371.580 8 94.237 297.238 9 94.237 260.067 10 94.237 222.896 11 94.237 148.554 12 94.237 111.383 13 94.237 74.212 14 99.264 31.875 15 70.949 0.000 16 28.314 0.000 17 0.000 31.875 18 5.027 74.212 19 5.027 111.383 20 5.027 148.554 21 5.027 185.725 22 5.027 222.896 23 5.027 260.067 24 5.027 297.238 25 5.027 334.409 26 5.027 371.580 27 5.027 408.751 28 5.027 445.921 29 5.027 483.092 30 5.027 505.395 31 5.027 527.697 32 86.981 479.652