Figure 3From: Comparable contributions of structural-functional constraints and expression level to the rate of protein sequence evolutionEvolutionary rate distributions for two superfamilies of highly abundant domains: comparison of fused and solo domains. A – P-loop-containing NTP hydrolases; B – PH-like domains. The rates were estimated from comparisons of human-mouse orthologous protein sequences. X-axis: log10 of domain evolution rate, Y-axis: probability density function.Back to article page