A dehydrogenase is an enzyme belonging to the group of oxidoreductases that oxidizes a substrate by reducing an electron acceptor, usually NAD+/NADP+ or a flavin coenzyme such as FAD or FMN. Like all catalysts, they catalyze reverse as well as forward reactions, and in some cases this has physiological significance: for example, alcohol dehydrogenase catalyzes the oxidation of ethanol to acetaldehyde in animals, but in yeast it catalyzes the production of ethanol from acetaldehyde.
Malate dehydrogenase (EC 1.1.1.37) (MDH) is an enzyme that reversibly catalyzes the oxidation of malate to oxaloacetate using the reduction of NAD+ to NADH. This reaction is part of many metabolic pathways, including the citric acid cycle. Other malate dehydrogenases, which have other EC numbers and catalyze other reactions oxidizing malate, have qualified names like malate dehydrogenase (NADP+).
3β-Hydroxysteroid dehydrogenase/Δ5-4 isomerase (3β-HSD) is an enzyme that catalyzes the biosynthesis of the steroid progesterone from pregnenolone, 17α-hydroxyprogesterone from 17α-hydroxypregnenolone, and androstenedione from dehydroepiandrosterone (DHEA) in the adrenal gland. It is the only enzyme in the adrenal pathway of corticosteroid synthesis that is not a member of the cytochrome P450 family. It is also present in other steroid-producing tissues, including the ovary, testis and placenta. In humans, there are two 3β-HSD isozymes encoded by the HSD3B1 and HSD3B2 genes.
In enzymology, an ephedrine dehydrogenase (EC 1.5.1.18) is an enzyme that catalyzes the chemical reaction
In enzymology, a carveol dehydrogenase (EC 1.1.1.243) is an enzyme that catalyzes the chemical reaction
In enzymology, an indanol dehydrogenase (EC 1.1.1.112) is an enzyme that catalyzes the chemical reaction
In enzymology, a quinate dehydrogenase (EC 1.1.1.24) is an enzyme that catalyzes the chemical reaction
In enzymology, a 21-hydroxysteroid dehydrogenase (NAD+) (EC 1.1.1.150) is an enzyme that catalyzes the chemical reaction
In enzymology, a 2-alkyn-1-ol dehydrogenase (EC 1.1.1.165) is an enzyme that catalyzes the chemical reaction below:
In enzymology, 3-hydroxybutyrate dehydrogenase (EC 1.1.1.30) is an enzyme that catalyzes the chemical reaction:
In enzymology, a 6-endo-hydroxycineole dehydrogenase (EC 1.1.1.241) is an enzyme that catalyzes the chemical reaction
In enzymology, a (R)-aminopropanol dehydrogenase (EC 1.1.1.75) is an enzyme that catalyzes the chemical reaction
In enzymology, a Δ7-sterol 5(6)-desaturase is an enzyme that catalyzes the chemical reaction
Limonene-1,2-diol dehydrogenase (EC 1.1.1.297, NAD+-dependent limonene-1,2-diol dehydrogenase) is an enzyme with systematic name menth-8-ene-1,2-diol:NAD+ oxidoreductase. This enzyme catalyses the following chemical reaction
(+)-Thujan-3-ol dehydrogenase (EC 1.1.1.323, d-3-thujanol dehydrogenase, TDH) is an enzyme with systematic name (+)-thujan-3-ol:NAD(P)+ oxidoreductase. This enzyme catalyses the following chemical reaction
Alcohol dehydrogenase (nicotinoprotein) (EC 1.1.99.36, NDMA-dependent alcohol dehydrogenase, nicotinoprotein alcohol dehydrogenase, np-ADH, ethanol:N,N-dimethyl-4-nitrosoaniline oxidoreductase) is an enzyme with systematic name ethanol:acceptor oxidoreductase. This enzyme catalyses the following chemical reaction
Carvone reductase is an enzyme with systematic name (+)-dihydrocarvone:acceptor 1,6-oxidoreductase. This enzyme catalyses the following chemical reaction
Monocyclic monoterpene ketone monooxygenase (EC 1.14.13.105, 1-hydroxy-2-oxolimonene 1,2-monooxygenase, dihydrocarvone 1,2-monooxygenase, MMKMO) is an enzyme with systematic name (-)-menthone,NADPH:oxygen oxidoreductase. This enzyme catalyses the following chemical reaction
Limonene 1,2-monooxygenase (EC 1.14.13.107) is an enzyme with systematic name limonene,NAD(P)H:oxygen oxidoreductase. This enzyme catalyses the following chemical reaction
The enzyme monoterpene ε-lactone hydrolase (EC 3.1.1.83, MLH; systematic name isoprop(en)ylmethyloxepan-2-one lactonohydrolase catalyses the reaction
