Table 2.

Backbone Dihedral Angles for the RNA and DNA Strands in DRH Duplex and in RNA and DNA Duplexes

Torsion Angles	Average Value			Average Value
	hy-RNAa	RNAb	ΔRNAc	hy-DNAa	DNAb	ΔDNAc
χ (deg.)	−157.92 ± 9.91	−158.28 ± 10.81	0.36	−125.66 ± 5.88	−120.10 ± 5.29	5.56
δ (deg.)	79.34 ± 1.90	77.84 ± 1.93	1.50	121.81 ± 6.75	127.13 ± 5.62	5.32
Phase (deg.)	12.64 ± 3.44	14.85 ± 3.62	2.21	112.04 ± 22.68	116.18 ± 24.10	4.14
γ (deg.)	71.89 ± 5.20	70.71 ± 4.92	1.18	58.99 ± 14.72	60.62 ± 7.25	1.63
ζ (deg.)	321.59 ± 2.65	320.37 ± 2.64	1.22	288.55 ± 7.48	285.16 ± 8.33	3.39

^aThe hy-RNA and hy-DNA are the RNA and DNA strands of the DRH duplex, respectively.

^bThe RNA and DNA denote that the strands in the RNA and DNA duplexes with the same sequences correspond to the hy-RNA or hy-DNA, respectively.

^cΔ_RNA and Δ_DNA denote the absolutely average value deviations between hy-RNA and RNA and between hy-DNA and DNA, respectively.