图8. (a) 三片层G-四链体在H2O(下)中及交换到D2O中1 h(上)后的亚氨基质子的一维氢谱;(b) RET G-四链体的拓扑结构[57]
Fig.8. (a) Imino proton region of one-dimensional 1H NMR spectra in H2O (down) and D2O (upper, exchanged from H2O sample 1 h later), respectively. (b) RET G4-DNA structure[57]