Figure 5
From: Evolution of mosaic operons by horizontal gene transfer and gene displacement in situ
Genes with different phylogenetic affinities in the lipopolysaccharide biosynthesis operon of Methanothermobacter thermoautotrophicus and Deinococcus radiodurans. (a) Organization of the lipopolysaccharide biosynthesis operon in different prokaryotes. COG1091 - dTDP-4-dehydrorhamnose reductase; COG1209 dTDP-glucose pyrophosphorylase; COG1898 - dTDP-4-dehydrorhamnose 3,5-epimerase and related enzymes; COG1088 - dTDP-D-glucose 4,6-dehydratase. The designations are as in Figure 1a. For species abbreviations, see Materials and methods. (b-e) Unrooted maximum-likelihood tree for RfbB (b), RfbC (c), RfbA (d) and RfbD (e); the designations are as in Figure 1b.