
Figure 3
Phylogenetic tree of rat glandular kallikreins and comparison with those of mouse and human. The tree illustrates an independent expansion of rat and mouse glandular kallikreins. Rat-specific and mouse-specific glandular kallikreins are shown in red and in green, respectively. Human-specific kallikreins, including KLK2 and prostate specific antigen/KLK3, are shown in blue.











