Figure 1.

Central metabolism of C. jejuni and carbon flux surrounding pyruvate. Pathways and reactions are distinguished by the colour of arrows connecting intermediates; blue, possible anabolic role of EMP pathway; magenta, preferred amino acid catabolism; green, potential futile cycle; black, oxidative citric acid cycle and pyruvate carboxylation/decarboxylation. This composite figure is adapted from previously published information (Velayudhan and Kelly, 2002; St Maurice et al., 2007; Guccione et al., 2008).