Figure 2 - full size

Figure 2.
Figure 2. A Comparison of the Structures of the Polymerase Domains of AfCCA, BstCCA, and DNA pol βThe polymerase domain is shown in magenta and the neck/fingers in green. The incoming nucleotide is yellow and the metal ions are brown. The three catalytic carboxylates are shown. In (B), the last magenta helix (cylinder) to the right belongs to pol β fingers domain. For comparison with the AfCCA head it is colored the same as the palm domain. In (C), the region colored in red represents the additional part of BstCCA not seen in the AfCCA head and Pol β domains.