Figure 3

Comparison of the putative transposases of PpTc 1 and PpTc 2. (A) Alignment of peptide sequences. Colored residues: blue to cyan, α-helices of HTH motifs; green to yellow, DD34E triad motif. (B) Predicted three-dimensional ribbon models of transposases. Blue to red, N terminus to C terminus; HTH1 and HTH2, putative DNA binding (both) and dimerization (HTH1 only); clamp, loop structure potentially interacts with the linker of the other monomer in a transposase dimer; linker, potentially interacts with the clamp loop of the other monomer in a dimer; DD34E, catalytic active center.