Biological Function
Carbon monoxide dehydrogenase participates in diverse prokaryotic biochemical pathways, including the metabolism of methanogenic, aerobic carboxidotrophic, acetogenic bacteria, sulfate-reducing, and hydrogenogenic bacteria. The bidirectional reaction catalyzed by CODH plays a role in the carbon cycle allowing organisms to both make use of CO as a source of energy and utilize CO2 as a source of carbon. CODH can form a monofunctional enzyme, as is the case in Rhodospirillum rubram, or can form a cluster with acetyl-CoA synthase as has been shown in M.thermoacetica. When acting in concert, either as structurally independent enzymes or in a bifunctional CODH/ACS unit, the two catalytic sites are key to carbon fixation in the reductive acetyl-CoA pathway.
Read more about this topic: Carbon Monoxide Dehydrogenase
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