Maximum likelihood estimates of positive selection for SERPINB3/B4 phylogeny.

Likelihood ratio tests (−2Δl) comparing a null and positive selection models (M1a vs M2a, M7 vs M8); N, number of primate species with sequences in alignment; p: proportion of sites under positive selection in M8 model; ω: estimate the dN/dS of the sites under selection in M8 model; a Amino acid sites found to be under positive selection with posterior probabilities greater than 90% (blank), 95% (underlined) or 99% (bold) in the BEB analysis. The reference sequence is human SERPINB3. ** Significance with p<0.001.