Figure 2From: Evolution of DNA polymerases: an inactivated polymerase-exonuclease module in Pol ε and a chimeric origin of eukaryotic polymerases from two classes of archaeal ancestorsA schematic diagram of conserved blocks and specific inserts in the most conserved part of the alignment of polymerase catalytic domain of different groups of B-family DNA polymerases. For the actual alignment, see Additional File 1.Back to article page