Journal of Nucleic Acids / 2012 / Article / Fig 1

Review Article

Dioxaphosphorinane-Constrained Nucleic Acid Dinucleotides as Tools for Structural Tuning of Nucleic Acids

Figure 1

Examples of DNA secondary structures and associated backbone-torsion angles γ/β/α/ε/ζ of representative dinucleotide units. The following 6-fold staggered pattern of the torsional angles is used: cis = ° (c), gauche(+) = ° (g+), anticlinal(+) = ° (a+), trans = ° ( ), anticlinal(−) = ° (a), and gauche(−) = ° (g). The notation g/a is used to designate a torsion angle on the border of gauche(−) and anticlinal(−). PDB ID: Hairpin, 1ii1; duplex, 436d; Bulge, 1jrv; 4-Way junction, 1zez, and G-quad, 1kf1.

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