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Updated: Jul 7, 2026

Simultaneous Measurement of Superoxide/Hydrogen Peroxide and NADH Production by Flavin-containing Mitochondrial Dehydrogenases
Published on: February 24, 2018
Structural and functional features of dimeric dihydrodiol dehydrogenase.
V Carbone1, A Hara, O El-Kabbani
1Department of Medicinal Chemistry, Victorian College of Pharmacy, Monash University, Parkville, Victoria 3052, Australia.
Dimeric dihydrodiol dehydrogenase (DD) oxidizes aromatic hydrocarbon trans-dihydrodiols to catechols. This review details DD
Area of Science:
- Biochemistry
- Structural Biology
- Enzymology
Background:
- Dimeric dihydrodiol dehydrogenase (DD) is an enzyme crucial for oxidizing aromatic hydrocarbon trans-dihydrodiols to catechols.
- Its tertiary structure features a dinucleotide binding domain and a C-terminal beta-sheet domain.
Purpose of the Study:
- To review the biochemical and structural characteristics of dimeric DD.
- To compare dimeric DD with structurally similar enzymes.
- To elucidate the catalytic mechanism and evolutionary relationships of dimeric DD within its protein family.
Main Methods:
- Literature review of biochemical and structural studies on dimeric DD.
- Comparative analysis of dimeric DD with homologous enzymes.
- Bioinformatic analysis to infer evolutionary connections.
Main Results:
- Detailed description of the NADP(+)-dependent catalytic activity of dimeric DD.
- Characterization of the N-terminal dinucleotide binding domain and C-terminal beta-sheet domain.
- Identification of structural similarities with other oxidoreductases.
Conclusions:
- Dimeric DD possesses a unique structural architecture enabling its specific catalytic function.
- Understanding dimeric DD's mechanism provides insights into the broader family of monomeric/oligomeric oxidoreductases.
- The enzyme family likely shares a common evolutionary origin, highlighting conserved structural and functional motifs.
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