In What Ways Do Synthetic Nucleotides and Natural Base Lesions Alter the Structural Stability of G-Quadruplex Nucleic Acids?

Figure 9

Structures of the anti ribo- (1) and the 2′-O-methylribouridines (2); the C2′-endo (S-type) and C3′-endo (N-type) sugar puckers (3); the 2′-fluoro-2′-deoxyribofuranosylguanine (4); and 2′-fluoro-2′-deoxy-arabinofuranosylguanine (5).