1.3.1.82 evolution the enzyme belongs to the short-chain dehydrogenases/reductases SDR superfamily. A sequence alignment of the three ketoreductases MMR, MNMR, and salutaridine reductase (45-49% homology to Mentha enzymes) from Papaver somniferum with Mentha pipertita enzyme IPR shows each enzyme contains typical SDR-like motifs, such as those involved in central beta-sheet stabilization, and a TGxxxGhG motif 1.3.1.82 metabolism the enzyme is involved in the monoterpene biosynthetic pathway and menthol biosysnthetic pathway of fungal strain PR4 1.3.1.82 additional information the catalytic acid residue in enzyme IPR is Glu238, analysis of its role in reaction mechanism 1.3.1.82 physiological function the enzyme products are important for intra- and extracellular pathogen defense, the cell extract is biologicaly active against several pathogenic organisms, overview