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. 2000 Nov 28;97(25):13608–13613. doi: 10.1073/pnas.250476297

Table 3.

Best-fit parameters derived from the simulations

DNA Roll and tilt fluctuations, ° Torsional modulus, 10−19 erg⋅cm Kink angle, ° Helical repeat, bp
B-DNA 4.68 2.4  0 10.45
A-tract 4.68 2.4 * 10.33
NPS site 6.5 1.5 13 10.30
*

The A-tracts are bent by roll and tilt kinks at the junctions (34).