ID 1.1.1.404 DE tetrachlorobenzoquinone reductase. AN TCBQ reductase. CA 2,3,5,6-tetrachlorohydroquinone + H(+) + NAD(+) = 2,3,5,6-tetrachloro- CA 1,4-benzoquinone + NADH. CC -!- The enzyme, characterized from the bacterium Sphingobium CC chlorophenolicum, participates in the degradation of CC pentachlorophenol. DR Q47914, PCPD_SPHCR ; //