Cis-1,2-dihydrobenzene-1,2-diol dehydrogenase

In enzymology, a cis-1,2-dihydrobenzene-1,2-diol dehydrogenase (EC 1.3.1.19) is an enzyme that catalyzes the chemical reaction

cis-1,2-dihydrobenzene-1,2-diol + NAD⁺ ${\displaystyle \rightleftharpoons }$ catechol + NADH + H⁺

Thus, the two substrates of this enzyme are cis-1,2-dihydrobenzene-1,2-diol and NAD⁺, whereas its 3 products are catechol, NADH, and H⁺.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is cis-1,2-dihydrobenzene-1,2-diol:NAD+ oxidoreductase. Other names in common use include cis-benzene glycol dehydrogenase, cis-1,2-dihydrocyclohexa-3,5-diene (nicotinamide adenine, and dinucleotide) oxidoreductase. This enzyme participates in 4 metabolic pathways: gamma-hexachlorocyclohexane degradation, toluene and xylene degradation, naphthalene and anthracene degradation, and styrene degradation.

References

• Axcell BC, Geary PJ (1973). "The metabolism of benzene by bacteria. Purification and some properties of the enzyme cis-1,2-dihydroxycyclohexa-3,5-diene (nicotinamide adenine dinucleotide) oxidoreductase (cis-benzene glycol dehydrogenase)". Biochem. J. 136 (4): 927–34. PMC 1166042. PMID 4362337.
• Gibson DT, Koch JR, Kallio RE (1968). "Oxidative degradation of aromatic hydrocarbons by microorganisms. I Enzymatic formation of catechol from benzene". Biochemistry. 7 (7): 2653–62. doi:10.1021/bi00847a031. PMID 4298226.

This page was last edited on 26 August 2023, at 13:33