1 32 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 GGGAUACCAU GUUCAGAAGA ACGUGGUAUC UC LOOP1 16 17 Crystallography ? ? Angstroms 1 G O3' -14.302 -8.617 -24.721 2 G P -13.132 -7.997 -23.804 O3' -13.526 -3.643 -20.901 3 G P -12.232 -3.120 -20.095 O3' -11.304 -1.963 -15.473 4 A P -9.769 -1.795 -15.014 O3' -7.697 -2.179 -10.300 5 U P -6.102 -2.060 -10.105 O3' -3.469 -3.689 -5.981 6 A P -1.894 -3.405 -6.165 O3' 1.881 -7.234 -5.141 7 C P 3.424 -7.039 -5.553 O3' 7.146 -10.914 -5.989 8 C P 8.585 -10.289 -6.351 O3' 11.653 -11.218 -10.007 9 A P 12.629 -9.939 -9.946 O3' 14.697 -7.399 -14.202 10 U P 15.300 -5.910 -14.081 O3' 15.343 -2.193 -18.069 11 G P 15.722 -0.635 -17.930 O3' 13.113 3.239 -20.765 12 U P 13.122 4.850 -20.748 O3' 8.693 7.549 -22.530 13 U P 8.407 9.134 -22.511 O3' 3.454 10.864 -20.831 14 C P 2.852 12.347 -20.653 O3' -0.255 13.812 -16.461 15 A P -0.981 15.203 -16.818 O3' 1.064 20.337 -15.062 16 G P 0.835 21.831 -15.617 O3' 5.884 25.036 -16.454 17 A P 5.852 26.432 -15.650 O3' 9.633 24.992 -12.423 18 A P 10.621 25.492 -11.251 O3' 11.620 21.370 -7.419 19 G P 13.072 20.789 -7.800 O3' 11.368 15.615 -6.086 20 A P 11.799 14.081 -6.333 O3' 7.522 10.404 -5.227 21 A P 7.270 8.832 -5.484 O3' 2.500 6.573 -7.195 22 C P 2.115 5.051 -7.565 O3' -0.567 3.723 -12.242 23 G P -0.850 2.305 -12.949 O3' -0.030 1.215 -18.178 24 U P -0.156 -0.166 -19.001 O3' 2.192 -2.620 -22.573 25 G P 1.032 -3.722 -22.743 O3' 2.592 -9.221 -23.023 26 G P 1.652 -10.523 -22.864 O3' 2.189 -14.759 -20.662 27 U P 0.856 -15.483 -20.119 O3' -0.239 -18.552 -16.389 28 A P -1.752 -18.925 -15.980 O3' -4.215 -19.355 -11.434 29 U P -5.804 -19.593 -11.300 O3' -8.830 -18.594 -7.545 30 C P -10.407 -18.696 -7.852 O3' -13.748 -14.906 -5.993 31 U P -15.323 -14.787 -6.306 O3' -18.067 -10.523 -7.830 32 C P -19.603 -10.659 -8.297 O3' -22.236 -7.379 -11.650 16 syn 1 32 + + c 2 31 W W c 3 30 + + c 4 29 - - c 5 28 - - c 6 27 - - c 7 26 + + c 8 25 + + c 9 24 - - c 10 23 W W c 11 22 + + c 12 21 - - c 13 20 - - c 14 19 + + c 15 18 S W c 15 19 ! ! ! 16 18 ! ! ! 16 17 ! ! ! 1 32 15 SG1 16 17 1 85.831 0.000 2 85.831 35.763 3 85.831 71.526 4 85.831 107.288 5 85.831 143.051 6 85.831 178.814 7 85.831 214.577 8 85.831 250.340 9 85.831 286.102 10 85.831 321.865 11 85.831 357.628 12 85.831 393.391 13 85.831 429.154 14 85.831 464.916 15 85.831 500.679 16 68.976 550.000 17 16.855 550.000 18 0.000 500.679 19 0.000 464.916 20 0.000 429.154 21 0.000 393.391 22 0.000 357.628 23 0.000 321.865 24 0.000 286.102 25 0.000 250.340 26 0.000 214.577 27 0.000 178.814 28 0.000 143.051 29 0.000 107.288 30 0.000 71.526 31 0.000 35.763 32 0.000 0.000