Figure 6. Comparison of the bcs gene clusters from C. carboxidivorans strain P7^T and other butanol-producing Clostridium.

Organization and gene composition of the bcs cluster from strain P7^T and from C. saccharobutylicum, C. beijerinckii and C. acetobutylicum as described by Berezina et al. [38]. crt, crotonase; hbd, 3-hydroxybutyryl-CoA dehydrogenase; thl, acetyl-CoA acetyl transferase; bcd, butyryl-CoA dehydrogenase; etfB, electron transport protein, subunit B; etfA, electron transport protein, subunit A.