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Dehydrogenase

 

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Dehydrogenase



 
 
A dehydrogenase is an enzyme
Enzyme

Enzymes are biomolecules that catalysis chemical reactions. Almost all enzymes are proteins. In enzymatic reactions, the molecules at the beginning of the process are called Substrate , and the enzyme converts them into different molecules, the products....
 that oxidizes a substrate
Substrate (biochemistry)

In biochemistry, a substrate is a molecule upon which an enzyme acts. Enzymes catalysis chemical reactions involving the substrate. The substrate binds with the enzyme active site, and an enzyme-substrate complex is formed....
 by transferring one or more hydrides to an acceptor, usually NAD/NADP or a flavin
Flavin

Flavin is the common name for a group of organic compounds based on pteridine, formed by the Heterocycle isoalloxazine. The biochemical source is the vitamin riboflavin....
 coenzyme
Coenzyme

Many enzymes require a cofactor for catalytic activity, accelerating the transformation of a specific substrate to a particular product. The inactive protein, without the cofactor is called an apoenzyme, while the complete enzyme with cofactor is the holoenzyme....
 such as FAD or FMN
FMN

FMN may refer to several things:* Flavin mononucleotide.* Ministry of Defence , the Denmark Ministry of Defence.* Four Corners Regional Airport outside Farmington, New Mexico, its IATA airport code....
.








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Encyclopedia


A dehydrogenase is an enzyme
Enzyme

Enzymes are biomolecules that catalysis chemical reactions. Almost all enzymes are proteins. In enzymatic reactions, the molecules at the beginning of the process are called Substrate , and the enzyme converts them into different molecules, the products....
 that oxidizes a substrate
Substrate (biochemistry)

In biochemistry, a substrate is a molecule upon which an enzyme acts. Enzymes catalysis chemical reactions involving the substrate. The substrate binds with the enzyme active site, and an enzyme-substrate complex is formed....
 by transferring one or more hydrides to an acceptor, usually NAD/NADP or a flavin
Flavin

Flavin is the common name for a group of organic compounds based on pteridine, formed by the Heterocycle isoalloxazine. The biochemical source is the vitamin riboflavin....
 coenzyme
Coenzyme

Many enzymes require a cofactor for catalytic activity, accelerating the transformation of a specific substrate to a particular product. The inactive protein, without the cofactor is called an apoenzyme, while the complete enzyme with cofactor is the holoenzyme....
 such as FAD or FMN
FMN

FMN may refer to several things:* Flavin mononucleotide.* Ministry of Defence , the Denmark Ministry of Defence.* Four Corners Regional Airport outside Farmington, New Mexico, its IATA airport code....
.

Examples

  • aldehyde dehydrogenase
    Aldehyde dehydrogenase

    Aldehyde dehydrogenases, E.C. 1.2.1.3, are a group of enzymes that catalyse the oxidation of aldehydes.Mitochondrial Aldehyde Dehydrogenase is a polymorphic enzyme #Crabb2004 responsible for the oxidation of aldehydes to carboxylic acids, which leave the liver and are metabolized by the body?s muscle and heart #Crabb2004....
  • acetaldehyde dehydrogenase
    Acetaldehyde dehydrogenase

    Acetaldehyde dehydrogenases are dehydrogenase enzymes which catalyze the conversion of acetaldehyde into acetic acid.The oxidation of acetaldehyde to acetate can be summarized as follows:...
  • alcohol dehydrogenase
    Alcohol dehydrogenase

    Alcohol dehydrogenase is an enzyme discovered in the mid-1960s in Drosophila melanogaster. Since then, there has been extensive research on the enzyme....
  • glutamate dehydrogenase
    Glutamate dehydrogenase

    Glutamate dehydrogenase is an enzyme, present in mitochondria of eukaryotes, as are some of the other enzymes required for urea synthesis, that converts glutamate to a-Ketoglutaric acid, and vice versa....
     (an enzyme that can convert glutamate to a-Ketoglutarate and vice versa).
  • lactate dehydrogenase
    Lactate dehydrogenase

    Lactate dehydrogenase is an enzyme present in a wide variety of organisms, including plants and animals....
  • pyruvate dehydrogenase
    Pyruvate dehydrogenase

    Pyruvate dehydrogenase complex is a complex of three enzymes that transform pyruvate into acetyl-CoA by a process called pyruvate decarboxylation....
     (a common enzyme which feeds the TCA Cycle
    Citric acid cycle

    The citric acid cycle ? also known as the tricarboxylic acid cycle ; the Krebs cycle; or, more rarely, the Szent-Gy?rgyi-Krebs cycle) ? is a series of enzyme-catalysed chemical reactions of central importance in all living cell s that use oxygen as part of cellular respiration....
     in converting Pyruvate to Acetyl CoA)
  • glucose-6-phosphate dehydrogenase
    Glucose-6-phosphate dehydrogenase

    Glucose-6-phosphate dehydrogenase is a cytosolic enzyme in the pentose phosphate pathway , a metabolic pathway that supplies reducing energy to cells by maintaining the level of the co-enzyme nicotinamide adenine dinucleotide ....
     (involved in the pentose phosphate pathway
    Pentose phosphate pathway

    The pentose phosphate pathway is a process that serves to generate NADPH and the synthesis of pentose sugars. There are two distinct phases in the pathway....
    )
  • glyceraldehyde-3-phosphate dehydrogenase (involved in glycolysis
    Glycolysis

    Glycolysis is the metabolic pathway that converts glucose, C6H12O6, into pyruvate, C3H5O3-....
    )


TCA cycle examples:
  • isocitrate dehydrogenase
    Isocitrate dehydrogenase

    Isocitrate dehydrogenase and , also known as IDH, is an enzyme which participates in the citric acid cycle. It catalyzes the third step of the cycle: the oxidative decarboxylation of isocitrate, producing Ketoglutaric acid and carbon dioxide while converting Nicotinamide adenine dinucleotide to Nicotinamide adenine dinucleotide....
  • alpha-ketoglutarate dehydrogenase
  • succinate dehydrogenase
  • malate dehydrogenase
    Malate dehydrogenase

    Malate dehydrogenase is an enzyme in the citric acid cycle that catalysis the conversion of malate into oxaloacetate and vice versa . Malate dehydrogenase is not to be confused with malic enzyme, which catalyzes the conversion of malate to pyruvate producing NADPH....


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