Dihydrobenzophenanthridine oxidase

Dihydrobenzophenanthridine oxidase (DHBP oxidase) is an enzyme. In the IUBMB Enzyme Nomenclature, dihydrobenzophenanthridine oxidase is.

Dihydrobenzophenanthridine oxidase produces oxidized forms of benzophenanthridine alkaloids:
 * In Sanguinaria canadensis (bloodroot), dihydrobenzophenanthridine oxidase produces sanguinarine from dihydrosanguinarine, and chelirubine from dihydrochelirubine.
 * In Eschscholzia californica (California poppy), dihydrobenzophenanthridine oxidase produces macarpine from dihydromacarpine.