Journal of Bacteriology
The sdhCDAB operon, encoding succinate dehydrogenase, was cloned from the soybean symbiont Bradyrhizobium japonicum. Sdh from B. japonicum is phylogenetically related to Sdh from mitochondria. This is the first example of a mitochondrion-like Sdh functionally expressed in Escherichia coli.
Westenberg, David J. and Guerinot, Mary Lou, "Succinate Dehydrogenase (Sdh) from Bradyrhizobium japonicum Is Closely Related to Mitochondrial Sdh" (1999). Open Dartmouth: Faculty Open Access Articles. 1115.