Phylogenetic tree of the 24 kDa-like module of the hydrogenase of , mitochondrial complex I 24 kDa subunits, bacterial NuoE, and bacterial hydrogenase subunits

<p><b>Copyright information:</b></p><p>Taken from "The [FeFe] hydrogenase of has a chimeric origin"</p><p>http://www.biomedcentral.com/1471-2148/7/230</p><p>BMC Evolutionary Biology 2007;7():230-230.</p><p>Published online 16 Nov 2007</p><p>PMCID:PMC2216082.</p><p></p> See methods for the Accession Numbers and how the tree was calculated. H: hydrogenase, M: ciliate mitochondrial. Bootstraps are only indicated in the tree if they are ≥ 50. Box 1 marks 24 kDa modules that are fused with their corresponding 51 kDa modules (with the exception of ). All bacteria in this box (with the exception of ) have a [NiFe] hydrogenase. The mitochondrial/alpha-proteobacterial 24 kDa modules are not fused with their 51 kDa counterparts (Box 2)