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' 21.136 7.479 30.506 2 G P 19.903 8.023 31.379 O3' 19.999 6.328 36.230 3 G P 18.499 6.869 36.458 O3' 17.363 8.457 41.110 4 C P 15.936 9.137 40.837 O3' 14.723 12.804 44.332 5 G P 13.334 13.503 43.944 O3' 12.225 19.256 44.023 6 G P 10.676 19.274 43.575 O3' 8.705 23.028 44.191 7 C P 7.279 22.306 44.032 O3' 2.988 25.092 44.597 8 C P 1.902 23.929 44.344 O3' -2.546 24.994 42.028 9 U P -3.212 23.528 41.920 O3' -5.855 21.825 38.277 10 U P -6.112 20.243 38.423 O3' -8.082 18.514 33.275 11 C P -7.389 17.205 32.670 O3' -2.484 17.042 29.596 12 G P -2.507 16.289 28.181 O3' -0.957 21.331 25.577 13 G P 0.524 21.944 25.702 O3' 0.143 27.257 27.247 14 G P 1.125 28.410 27.773 O3' 1.041 32.258 31.841 15 C P 2.367 33.140 31.676 O3' 4.213 34.774 36.056 16 U P 5.508 35.719 36.011 O3' 8.905 36.218 40.479 17 A P 10.129 37.107 41.008 O3' 13.882 33.268 44.177 18 G P 15.413 33.642 43.892 O3' 19.073 30.148 43.327 19 A P 20.381 30.770 42.637 O3' 23.224 29.659 38.527 20 C P 24.092 31.012 38.449 O3' 24.982 33.013 33.676 21 G P 25.710 34.411 33.938 O3' 24.890 38.089 30.195 22 G P 25.612 39.445 30.684 O3' 24.371 44.103 29.588 23 U P 25.579 44.967 30.214 O3' 25.285 49.169 32.661 24 G P 26.814 49.492 33.040 O3' 27.891 51.550 37.331 25 G P 29.408 51.494 37.878 O3' 31.512 50.512 43.086 26 G P 33.094 50.237 43.000 O3' 34.621 48.218 47.379 27 A P 36.226 48.172 47.372 O3' 38.914 45.242 49.542 28 G P 39.737 44.558 50.740 O3' 42.291 39.832 49.028 29 A P 43.341 39.660 50.140 O3' 46.857 38.618 45.806 30 G P 45.627 38.443 44.003 O3' 47.278 33.721 42.040 31 G P 48.768 34.136 41.608 O3' 50.000 32.274 36.938 32 C P 51.525 32.756 36.704 O3' 53.267 34.078 31.924 33 U P 54.724 34.663 32.244 O3' 56.168 38.776 29.385 34 U P 57.579 39.283 29.975 O3' 58.803 44.569 28.035 35 C P 59.066 45.665 29.193 O3' 56.008 48.917 32.640 36 G P 55.599 50.363 32.062 O3' 50.306 51.042 30.087 37 G P 48.946 50.642 30.875 O3' 45.062 46.689 29.469 38 C P 44.295 46.152 28.150 O3' 42.509 41.499 26.620 39 U P 41.027 41.092 27.076 O3' 39.580 36.483 30.096 40 G P 38.092 36.478 30.667 O3' 36.443 32.968 33.685 41 G P 35.056 33.575 34.188 O3' 33.729 31.816 39.232 42 U P 32.333 32.329 39.836 O3' 31.674 33.658 44.696 43 C P 30.089 33.690 44.572 O3' 27.637 36.964 48.061 44 C P 26.074 36.970 47.684 O3' 23.322 41.123 47.938 45 A P 21.822 41.098 47.358 O3' 18.693 44.935 46.052 46 C P 17.337 44.263 45.503 O3' 15.340 47.690 41.433 47 C P 14.122 48.525 42.053 O3' 12.134 44.657 38.682 48 C P 11.253 44.311 37.389 O3' 11.933 43.911 32.515 49 G P 11.176 42.498 32.392 O3' 12.227 39.181 28.720 50 U P 11.180 38.004 29.019 O3' 12.308 33.045 27.388 51 G P 10.900 32.281 27.596 O3' 11.449 28.059 31.831 52 A P 11.041 26.514 31.763 O3' 13.349 22.562 33.710 53 C P 14.744 21.792 33.609 O3' 19.910 23.949 32.407 54 G P 21.220 24.137 33.314 O3' 22.286 24.665 38.317 55 C P 23.747 24.024 38.544 O3' 25.484 21.537 42.668 56 U P 26.805 20.707 42.295 O3' 28.142 16.177 43.673 57 C P 29.575 15.775 43.097 O3' 31.978 10.304 41.894 12 syn 34 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 30 39 W W c 31 38 + + c 32 37 + + c 33 36 S W c 51 53 S H c 28 40 ! ! ! 28 30 ! ! ! 5 53 ! ! ! 10 11 ! ! ! 34 35 ! ! ! 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 1 223.690 213.183 2 219.640 188.938 3 215.589 164.694 4 211.539 140.450 5 209.108 125.903 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 51 146.062 106.531 52 148.492 121.078 53 150.922 135.624 54 153.352 150.171 55 157.403 174.415 56 161.453 198.659 57 165.504 222.904