Single-Likelihood Ancestor Counting (SLAC) results for sites with human-specific amino acid substitutions.

ES, expected synonymous sites. EN, expected non-synonymous sites. S, inferred synonymous substitutions. N, inferred non-synonymous substitutions. P[S], expected proportion of synonymous sites. dS, inferred synonymous substitution rate. dN, inferred non-synonymous substitution rate. P [dN/dS > 1], binomial probability that S is no greater than the observed value, with Ps probability of success. P (dN/dS s probability of success. Total branch length, the total length of branches contributing to the inference at this site (used to scale dN and dS).