1 34 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 GGUCUGGGCG CAGCGCAAGC UGACGGUACA GGCC LOOP1 16 17 Crystallography ? ? Angstroms 1 G P -11.609 -25.653 0.021 O3' -8.489 -21.878 2.737 2 G P -8.075 -20.343 3.002 O3' -4.443 -18.952 6.361 3 U P -4.046 -17.400 6.538 O3' 0.534 -15.669 8.006 4 C P 0.785 -14.078 8.047 O3' 5.075 -11.479 7.291 5 U P 4.935 -9.884 7.098 O3' 7.944 -6.783 4.510 6 G P 7.488 -5.249 4.315 O3' 8.773 -2.767 -0.734 7 G P 10.089 -1.868 -0.504 O3' 10.241 0.614 -5.095 8 G P 9.929 2.172 -5.361 O3' 7.334 3.818 -10.106 9 C P 7.051 5.361 -10.504 O3' 2.811 7.262 -12.531 10 G P 2.418 8.812 -12.336 O3' -2.315 10.723 -12.540 11 C P -2.451 12.292 -12.196 O3' -6.300 14.432 -9.558 12 A P -6.082 15.950 -9.065 O3' -7.774 17.866 -4.563 13 G P -7.262 19.340 -4.159 O3' -6.196 21.145 0.425 14 C P -5.550 22.620 0.377 O3' -2.160 24.904 3.261 15 G P -1.693 26.289 2.582 O3' 2.510 28.827 2.738 16 C P 2.281 30.056 1.721 O3' 6.897 29.913 -0.876 17 A P 7.002 28.452 -1.570 O3' 11.425 25.490 -2.354 18 A P 11.205 23.975 -2.857 O3' 13.304 19.740 -0.385 19 G P 12.764 18.251 -0.675 O3' 11.216 15.296 3.280 20 C P 10.817 13.741 3.164 O3' 6.202 10.772 4.936 21 U P 5.379 9.431 4.591 O3' 0.432 8.641 5.785 22 G P -0.368 7.346 5.255 O3' -5.488 6.512 4.984 23 A P -4.935 5.579 6.177 O3' -9.576 1.739 4.773 24 C P -9.852 2.222 3.251 O3' -9.260 2.354 0.007 25 G P -9.025 0.990 -0.814 O3' -9.981 0.383 -5.881 26 G P -9.583 -0.768 -6.941 O3' -7.371 -2.451 -1.925 27 U P -8.404 -3.163 -0.896 O3' -8.342 -7.929 -4.227 28 A P -6.830 -8.202 -4.733 O3' -5.404 -7.158 -9.488 29 C P -4.437 -8.406 -9.793 O3' 0.216 -8.537 -11.876 30 A P 0.730 -10.063 -11.914 O3' 5.355 -11.840 -10.993 31 G P 5.504 -13.446 -10.997 O3' 8.695 -16.284 -8.305 32 G P 8.466 -17.876 -8.244 O3' 9.900 -21.053 -4.616 33 C P 9.357 -22.569 -4.675 O3' 8.674 -25.736 -0.721 34 C P 7.880 -27.134 -0.829 O3' 5.749 -29.530 3.247 1 34 + + c 2 33 + + c 3 32 W W c 4 31 + + c 5 30 - - c 6 29 + + c 7 28 W W c 8 26 W W t 9 25 + + c 10 24 + + c 11 22 + + c 12 21 - - c 13 20 + + c 14 19 + + c 15 18 S H t 15 17 ! ! ! 1 34 7 8 26 3 11 22 5 SG1 16 17 SG2 23 23 SG3 27 27 1 75.953 0.000 2 75.953 31.647 3 75.953 63.294 4 75.953 94.942 5 75.953 126.589 6 75.953 158.236 7 75.953 189.883 8 75.953 253.178 9 75.953 284.825 10 75.953 316.472 11 75.953 379.766 12 75.953 411.413 13 75.953 443.061 14 75.953 474.708 15 75.953 506.355 16 61.038 550.000 17 14.915 550.000 18 0.000 506.355 19 0.000 474.708 20 0.000 443.061 21 0.000 411.413 22 0.000 379.766 23 0.000 348.119 24 0.000 316.472 25 0.000 284.825 26 0.000 253.178 27 0.000 221.530 28 0.000 189.883 29 0.000 158.236 30 0.000 126.589 31 0.000 94.942 32 0.000 63.294 33 0.000 31.647 34 0.000 0.000