Figure 4.

Diversity and genomic organization of predicted hydrogenases. A) Schematic representation of the four predicted types of hydrogenase. B) Organization of the predicted operons encoding the four types of hydrogenase. C) Schematic representation of similarity between the group 4 hydrogenase genes in M. barkeri with the A. ferrooxidans group 4 hydrogenase (above) and NADH dehydrogenase subunits (below).

Vald├ęs et al. BMC Genomics 2008 9:597   doi:10.1186/1471-2164-9-597
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