Characterization of 2-oxindole forming heme enzyme in the biosynthetic pathway of maremycins

A2-oxindole forming heme enzyme. MarE. had been proposed as a fifth member pending structural validation.45 MarE is a functionally characterized monooxygenase that generates the oxindole moiety found in the biosynthetic pathways for maremycins (A - G). spirotryprostatin (A - B). and others. We will determine the crystal structure of MarE and revisit its catalytic function.