1 6 1 2 3 4 5 6 gaactc 1 GPN 2 APN 3 APN 4 CPN 5 TPN 6 CPN Crystallography ? ? Angstroms 1 g 2 a 3 a 4 c 5 t 6 c 1 syn 2 syn 3 syn 4 syn 5 syn 6 syn 1 0.000 0.000 2 0.000 110.000 3 0.000 220.000 4 0.000 330.000 5 0.000 440.000 6 0.000 550.000 1 6 7 8 9 10 11 12 GAGU UC Crystallography ? ? Angstroms 1 G P 8.386 -6.698 -2.723 O3' 4.781 -10.143 -3.945 2 A P 3.547 -9.176 -4.361 O3' -1.419 -10.373 -3.287 3 G P -1.741 -9.639 -4.694 O3' -6.056 -6.441 -3.813 4 U P -6.270 -5.220 -4.858 O3' -7.625 -0.335 -3.566 5 U P -7.369 0.879 -4.605 O3' -7.173 5.845 -3.447 6 C P -7.059 6.655 -4.842 O3' -4.599 11.207 -5.316 1 264.000 550.000 2 264.000 440.000 3 264.000 330.000 4 264.000 220.000 5 264.000 110.000 6 264.000 0.000 1 6 + + c 2 5 - - c 3 4 - - c 4 3 + + c 5 2 - - c 6 1 + + c 1 6 6