Discovery and investigation of natural Diels–Alderases

It has been proposed that biosyntheses of many natural products involve pericyclic reactions, including Diels–Alder (DA) reaction. However, only a small set of enzymes have been proposed to catalyze pericyclic reactions. Most surprisingly, there has been no formal identification of natural enzymes that can be defined to catalyze DA reactions (DAases), despite the wide application of the reaction in chemical syntheses of complex organic...