Fig. 2
From: Computational inference of the structure and regulation of the lignin pathway in Panicum virgatum
Revised and simplified pathway in switchgrass. By eliminating HCT from the diagram in Fig. 1 and adding CSE, the pathway system becomes simpler. The right branch in the grey box in Fig. 1 is merged into an efflux and the left branch is simplified to a one-step process. It is hypothesized that a specific functional channel could facilitate the conversion of feruloyl-CoA into coniferyl alcohol. Such a channel could be the result of co-localization of the involved pathway enzymes