Figure 3From: Molecular evolution of UCP1 and the evolutionary history of mammalian non-shivering thermogenesisA bar plot of site class probabilities for each codon, represented by amino acids in the figure. Site classifications and their omega estimate are defined in the figure. The protein topology, defined as intermembrane, transmembrane and matrix space protein portions was placed above the barplot. Topology was taken from [56].Back to article page