Figure 4From: Evolution of ribonuclease H genes in prokaryotes to avoid inheritance of redundant genesAmino acid sequence alignments of dsRHbds from prokaryotes. Arrows and rectangles indicate beta-strands and alpha-helices, respectively. These secondary structures were generated on the basis of the N-terminus domain of S. cerevisiae RNase H1 [35]. Arrows and rectangles indicate beta-strands and alpha-helices, respectively. Dark and light shadings indicate highly conserved and similar amino acid residues, respectively. Asterisk represents an identical amino acid residue. The symbol †indicates that the gene containing the resolvase domain encodes the amino acid sequence of dsRHbd. For detailed information, see Table 3.Back to article page