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. 2003 Aug;85(2):755–773. doi: 10.1016/S0006-3495(03)74518-4

FIGURE 11.

FIGURE 11

(A) FJC and WLC models for W(r|open) for ℓ/a = 0.2. The WLC distribution approximates that of the FJC if the effective number of persistence lengths N is reduced. This reduction compensates for the stiffness of the chain that tends to give more weight at larger distances. (B) FJC and WLC distributions for ℓ/a = 1. Note the heuristic cutoff applied to the WLC model at r = a. As expected, for equal N, the WLC model gives a typically larger separation and hence smaller a/R; however, a/R∝N−1/2 for N → ∞ in all cases. (C) The effective end-to-end distance distribution Weff constructed from W(r|open) via Eqs. 14 and 15.