Table 2. Summary of Ribose Sugar Conformations.

nucleotidea	J1′-2′ (Hz)	%C3′-endo (±10%)b
G1	4.8	45
G6	6.4	21
A7	6.5	21
G10	5.1	41
U11	5.9	29
U12	6.2	26
G13	4.7	47
A15	5.6	33
U16	6.7	18
C17	7.2	11
U18	2.8	75
A20	6.4	21
C29	4.6	49

^aNucleotides not included in the table are >90% in the C3′-endo conformation.

^bValues were calculated from J_1′-2′ using the empirical equation of van den Hoogen: %C3′-endo  = 114.9-14.5(J_1′-2′) [47].