Figure 2: Stereoview of superimposed amino acid residues in the Leucineloop of cUNG (A266, V267, L272, A274, H275 and L279) in blue (PDB ID: 1OKB), hUNG (T266, A267, L272, V274, Y275 and F279) in pink (PDB ID: 1AKZ) and hUNG-DNA (PDB ID: 2SSP – L272 is substituted by A) in red. The labels indicate the cUNG residues.