Figure 3: Bacterial glucan pathways. GlgC and GlgA are central to the classical glycogen pathway. The Rv3032 pathway is associated with methylglucose lipopolysaccharide biosynthesis. The newly identified GlgE pathway (red) (Kalscheue et al.) may contribute to cytosolic glycogen, capsular glucan and/or methylglucose lipopolysaccharide biosynthesis.