doxD, Naphthalene 1,2-dioxygenase system, small oxygenase component
Also Known as
Component of the naphthalene dioxygenase (NDO) multicomponent enzyme system which catalyzes the incorporation of both atoms of molecular oxygen into naphthalene to form cis-(1R,2S)-dihydroxy-1,2-dihydronaphthalene. The beta subunit seems to have a structural role in the holoenzyme. The naphthalene dioxygenase (NDO) multicomponent enzyme system is composed of an electron transfer component and a dioxygenase component (iron sulfur protein (ISP)). The electron transfer component is composed of a ferredoxin reductase and a ferredoxin (DoxA), and the dioxygenase component is formed of a heterohexamer (trimer of heterodimers) of three large alpha subunits (DoxB) and three small beta subunits (DoxD).