Fraction of the homologously paired RecA molecules as a function of the time for 430 nucleotides filaments. (Symbols) Experimental data from Forget and Kowalczykowski (23); (solid curves) theoretical predictions. The following parameters were utilized for calculations: s−1, s−1, and ; the effective diffusion rates u = 24,536 and 2726 s−1 for 2 and 6 μm DNA end-to end distances, respectively. To see this figure in color, go online.