The Bifunctional Pyruvate Decarboxylase/Pyruvate Ferredoxin Oxidoreductase from Thermococcus guaymasensis

Figure 6

Proposed pathway of ethanol production in T. guaymasensis. POR, pyruvate ferredoxin oxidoreductase; PDC, pyruvate decarboxylase; ADH, alcohol dehydrogenase; ACS, acetyl-CoA synthetase; AcDH, acetaldehyde dehydrogenase. The solid arrows indicate the steps confirmed by enzyme assays, while dashed arrow indicates possible pathway that has not been proved.