Scaling of the correction parameter λ2 (BLOSUM62). The decay of λ2 with system size shows approximately a power law near the logarithm-linear transition (two smallest gap costs). For this cases the fit to Eq. (19) is shown by a line (α = 10) and dots (α = 12). The lines of the remaining cases are guides to the eye conneting the data points.
Wolfsheimer et al. Algorithms for Molecular Biology 2007 2:9 doi:10.1186/1748-7188-2-9