Fig. 4.
The recognition well for the indicated values of juxtaposition length and molecular homology length, L. The energy is given in the units of thermal energy at room temperature (0.025 eV). The parameters used in calculations are: a1 = 3.75·10−4 eV/Å = 1.5·10−2 kBT/Å, a2 = 0.875·10−4 eV/Å = 0.35·10−2 kBT/Å (as in ref. 16) For λ[infi]c we adopted an updated, shorter value [which effectively takes into a account not only twist angle, but also all other distortions of helicity and is essentially taken from experiments (27)]: λc ≈ 100 Å. λc constitutes approximately the half-width of the well.