Fig. 5
Similarity of antitoxins found in M. catarrhalis prophages. Eleven antitoxin components were identified in 9 M. catarrhalis prophages with their putative evolutionary relationship depicted above. 1The antitoxins are found in prophages contained in clades 1 (red), 2 (green), and 4 (blue). 2The frequency at which the respective antitoxins or analogues can be found throughout the studied 95 M. catarrhalis genomes. The numbers above each branch in the distance tree represent the bootstrap percentage, and the scale in the lower left corner corresponds to 0.1 nucleotide substitutions per site