FIG 1.
Enzymatic pathway for n-butanol formation. Abbreviations: Thl, β-ketothiolase (EC 2.3.1.16); Hbd, 3-hydroxybutyryl-CoA dehydrogenase (EC 1.1.1.35); Crt, 3-hydroxybutyryl-CoA dehydratase (EC 4.2.1.55); Bcd/Etf, butyryl-CoA dehydrogenase/electron transfer protein; Ter, trans-2-enoyl-CoA reductase (EC 1.3.1.44); Bad, aldehyde dehydrogenase (EC 1.2.1.10); Bdh, alcohol dehydrogenase (EC 1.1.1.1); AdhE, bifunctional acetaldehyde dehydrogenase/alcohol dehydrogenase; Fdox, oxidized ferredoxin; Fdred, reduced ferredoxin.