TABLE 7.

DNA entropy determined using Schlitter and Andricioaei-Karplus methods for the four DNA structures sampled here

	SSchlitter	SKarplus
L-WWWW	2.22	2.07
	0.89	0.82
	0.44	0.41
L-IIIII	2.23	2.07
	0.88	0.81
	0.43	0.40
H-WWWW	2.29	2.14
	0.93	0.85
	0.46	0.43
H-IIII	2.24	2.09
	0.88	0.81
	0.44	0.40

In all the cases, the extrapolation (t = ∞) technique developed by Harris et al. (2001) (see Methods) was used. All values are in kcal/mol K. SEs in the fitted values are always ∼0.1 kcal/mol K. Results for the entire DNA (top numbers within each group); results for the AATT track (middle numbers); and results for the central AT step (bottom numbers).