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. Author manuscript; available in PMC: 2009 Sep 10.
Published in final edited form as: Plant J. 2008 Jan 16;54(3):362–374. doi: 10.1111/j.1365-313X.2008.03412.x

Figure 1. Structures of representative phenylpropenes and reaction mechanism of EGS and IGS enzymes.

Figure 1

(a) Structures of chavicol, anol, eugenol, isoeugenol, and their methylated derivatives. The carbon numbering system used in the text is shown.

(b) The reaction mechanism of EGS and IGS uses a quinone methide intermediate (Louie et al., 2007). B (in blue) represents a general base consisting of K132 and a bridging water molecule. H- (in red) represents the hydride transferred from NADPH.