Abstract
Prephenate decarboxylases are a small family of enzymes which initiate a specialized divergence from the shikimate pathway, where prephenate (2) is decarboxylated without aromatization. In addition to effecting a challenging chemical transformation, prephenate decarboxylases have been implicated in the production of rare specialized metabolites, sometimes directly constructing bioactive warheads. Many of the biosynthetic steps to natural products derived from prephenate decarboxylases remain elusive. Here, we review prephenate decarboxylase research thus far and highlight natural products that may be derived from biosynthetic pathways involving prephenate decarboxylases. We also highlight commonly encountered challenges in the structure elucidation of these natural products. Prephenate decarboxylases are a gateway into understudied biosynthetic pathways which present a high potential for the discovery of novel and bioactive natural products, as well as new biosynthetic enzymes.
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