<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> While most of the strains
exhibit only slight differences in codon-preference, the isolate from the host cockroach strain Amsterdam has a
substantially different codon-usage. In both cases, the bacterial-derived 24
and 51 kDa modules acquired the typical ciliate codon-usage that is not
significantly different from the one used for the (nuclear-encoded)
mitochondrial modules. Even the top-down distribution shows a complete
ameliorisation of the modules