Fig. 2
Interactions between the catalytic core and the GG-kink. a The relative arrangement between the catalytic core and the GG-kink, based on the DNAzyme-Pb2+ complex structure. The annealed Fo-Fc omit map for the GG-kink is contoured at 3.0 σ level and colored in green. b T:G Wobble pair between T1 and G + 1. (c) The non-canonical A:G pairing between A14 and G-1. In b, c, the residues are shown as stick models in the same color scheme for N (blue), O (red), and P (orange) atoms, but the C-atoms are colored in magenta, green, cyan, white, and yellow for G−1 and G+1, T1, and A14, the G2:C10 pair, the last pair of P1, and the A5:G13 pair, respectively
