Fig 6.

Phylogenetic relationship between l-cysteine-dependent maleylpyruvate isomerase BagL and selected members of the DinB superfamily. The phylogenetic tree was constructed by using the neighbor-joining method with MEGA5 software. The bootstrap confidence limits are indicated at the nodes, and the scale on the left indicates sequence divergence. BagL is marked by a an asterisk (*). The proteins of known function were indicated by a star (★). The GSH-dependent maleylpyruvate isomerase NagL from Ralstonia sp. strain U2 is used as the outgroup. The three types of maleylpyruvate isomerase are indicated in boldface.