Figure 3
Acceptance probability for a mutation Pacc, calculated in SCN simulations for ATPE (PDB code 1aqt, symbols) and in the mean-field model (lines) for three different values of the transition to transversion ratio k as a function of the GC content, f(C) + f(G). The mutation model is such that P(C) = P(G) and P(T) = P(A), assuming type 2 parity rule [54].