FIG 4.
Molecular phylogenetic analysis of Cthe_0345 (MDH) by the maximum likelihood method. The gray box indicates a grouping of putative LDH coding genes. The black box indicates a grouping of MDH genes which have a neighboring MalE gene. Arrows indicate sequences for which corresponding enzymes have been purified and characterized. The tree is drawn to scale, with branch lengths measured in the number of substitutions per site.