Chloroperoxidase first isolated in 1961 by Hager 1. and 2. from Caldariomyces fumago (CPO, EC 1.11.1.10), is one of the most versatile and promising of the heme enzymes for synthetic applications. 3., 4., 5., 6. and 7. Various transformations typical of catalases and cytochrome P-450 like monooxygenases are catalyzed by CPO. 8 The enzyme shows broad substrate specificity catalyzing various halide-dependent as well as halide-independent reactions. 9 In the ...