Secondary structure of GlpO of M. mycoides subsp. mycoides SC strain Afadé. Boxes represent FAD-binding (red) and putative G3P-binding (blue) segments, as defined previously [7]. Yellow arrows and green cylinders represent β-sheets and α-helices, respectively, as obtained by the protein structure prediction program PSIPRED. (For a colour version of this figure, please consult www.vetres.org..)