Figure 3From: Horizontal gene transfer and diverse functional constrains within a common replication-partitioning system in Alphaproteobacteria: the repABC operonFunctional restrictions within the RepA and RepB proteins. Substitution rate variation among sites in the RepA and RepB proteins. For each protein, all sites were assigned to one of five gamma categories. The Pfam-A domains are shown for each protein, as well as the zones affected by recombination events.Back to article page