1 24 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 CCUGGUAUUG CAGUACCUCC AGGU LOOP1 7 17 Crystallography ? ? Angstroms 1 C O3' 11.347 11.335 -3.094 2 C P 11.259 9.812 -2.597 O3' 7.666 7.214 -0.677 3 U P 7.978 5.713 -0.284 O3' 5.232 1.105 -0.781 4 G P 6.515 0.192 -0.336 O3' 6.574 -4.552 -3.048 5 G P 7.982 -5.123 -2.498 O3' 10.231 -8.235 -6.410 6 U P 11.737 -8.722 -6.053 O3' 15.328 -8.967 -9.921 7 A P 16.691 -9.394 -9.182 O3' 21.176 -8.439 -11.396 8 U P 22.198 -9.129 -10.389 O3' 26.661 -6.822 -10.165 9 U P 27.386 -7.892 -9.199 O3' 31.689 -7.104 -5.781 10 G P 33.081 -6.959 -6.570 O3' 35.264 -2.318 -8.287 11 C P 36.481 -1.873 -7.294 O3' 38.522 3.109 -7.051 12 A P 38.969 3.889 -8.375 O3' 35.861 8.278 -9.092 13 G P 36.525 9.464 -9.937 O3' 34.994 14.803 -8.288 14 U P 34.830 15.979 -9.384 O3' 29.788 14.858 -11.756 15 A P 29.651 15.420 -13.267 O3' 25.415 17.082 -10.698 16 C P 25.565 15.693 -9.917 O3' 21.756 12.480 -9.815 17 C P 22.241 11.243 -8.933 O3' 20.327 6.403 -11.718 18 U P 19.483 5.249 -10.995 O3' 18.897 2.517 -15.419 19 C P 17.657 3.362 -16.031 O3' 14.000 0.020 -18.081 20 C P 12.606 0.669 -18.555 O3' 8.205 -1.359 -18.086 21 A P 7.168 -0.168 -18.315 O3' 2.351 0.322 -16.027 22 G P 1.801 1.832 -16.080 O3' -1.252 4.045 -12.396 23 G P -1.549 5.566 -12.764 O3' -2.262 8.847 -8.843 24 U P -3.008 9.785 -9.895 O3' -1.126 14.907 -8.615 13 syn 1 23 + + c 2 22 + + c 3 21 - - c 4 20 + + c 5 19 + + c 6 18 W W c 10 11 ! ! ! 1 23 6 SG1 7 17 SG2 24 24 1 60.337 33.349 2 60.337 88.932 3 60.337 144.514 4 60.337 200.096 5 60.337 255.678 6 60.337 311.260 7 20.330 349.381 8 0.000 400.766 9 3.095 455.939 10 29.045 504.728 11 73.064 538.135 12 127.036 550.000 13 181.008 538.135 14 225.027 504.728 15 250.977 455.939 16 254.072 400.766 17 233.741 349.381 18 193.735 311.260 19 193.735 255.678 20 193.735 200.096 21 193.735 144.514 22 193.735 88.932 23 193.735 33.349 24 193.735 0.000