Dehydrogenase
From Wikipedia, the free encyclopedia
A dehydrogenase is an enzyme that oxidizes a substrate by transferring one or more protons and a pair of electrons to an acceptor, usually NAD/NADP or a flavin coenzyme such as FAD or FMN.
[edit] Examples
- aldehyde dehydrogenase
- acetaldehyde dehydrogenase
- alcohol dehydrogenase
- glutamate dehydrogenase (an enzyme that can convert glutamate to α-Ketoglutarate and vice versa).
- lactate dehydrogenase
- pyruvate dehydrogenase (a common enzyme which feeds the TCA Cycle in converting Pyruvate to Acetyl CoA)
- glucose-6-phosphate dehydrogenase (involved in the pentose phosphate pathway)
- glyceraldehyde-3-phosphate dehydrogenase (involved in glycolysis)
TCA cycle examples:
- isocitrate dehydrogenase
- alpha-ketoglutarate dehydrogenase
- succinate dehydrogenase
- malate dehydrogenase
[edit] External links
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Active site - Binding site - Catalytically perfect enzyme - Coenzyme - Cofactor - EC number - Enzyme catalysis - Enzyme kinetics - Enzyme inhibitor - Lineweaver-Burk plot - Michaelis-Menten kinetics
EC1 Oxidoreductases,O+R+D/list (alcohol oxidoreductases, CH-CH oxidoreductases, peroxidase, oxygenase) - EC2 Transferases/list (methyltransferase, acyltransferase, glycosyltransferase, transaminase, phosphotransferase, polymerase, kinase) - EC3 Hydrolases/list (esterase, DNA glycosylases, glycosidase, protease, acid anhydride hydrolases) - EC4 Lyases/list (carboxy-lyases, aldolase, dehydratase, synthase, adenylate cyclase, guanylate cyclase) - EC5 Isomerases/list (mutase, topoisomerase) - EC6 Ligases/list (DNA ligase, aminoacyl tRNA synthetase)
