Abstract
The formation of H 2 by chemolithoautrophically growing Oligotropha carboxidovorans has been identified as the result of the oxidation of CO mediated by the cytoplasmic species of the molybdenum-containing CO dehydrogenase multienzyme complex as follows: CO + H 2 O → CO 2 + H 2. Purified CO dehydrogenase was shown to carry hydrogen uptake and formation activities in addition to its catabolic function which is the oxidation of CO. Among the electron donors supporting H 2 formation were CO, NADH, reduced flavins and reduced viologen dyes. The reduction of protons to H 2 by cytoplasmic CO dehydrogenase is interpreted as a detoxification reaction for electrons to prevent cell damage in O. carboxidovorans.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
