Purification and partial characterization of aldehyde dehydrogenase from human erythrocytes. 1979

K Inoue, and H Nishimukai, and K Yamasawa

Human erythrocyte aldehyde dehydrogenase (aldehyde:NAD+ oxidoreductase, EC 1.2.1.3) was purified to apparent homogeneity. The native enzyme has a molecular weight of about 210,000 as determined by gel filtration, and SDS-polyacrylamide gel electrophoresis of this enzyme yields a single protein and with a molecular weight of 51,500, suggesting that the native enzyme may be a tetramer. The enzyme has a relatively low Km for NAD (15 microM) and a high sensitivity to disulfiram. Disulfiram inhibits the enzyme activity rapidly and this inhibition is apparently of a non-competitive nature. In kinetic characteristic and sensitivity to disulfiram, erythrocyte aldehyde dehydrogenase closely resembles the cytosolic aldehyde dehydrogenase found in the liver of various species of mammalians.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008297 Male Males
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D009243 NAD A coenzyme composed of ribosylnicotinamide 5'-diphosphate coupled to adenosine 5'-phosphate by pyrophosphate linkage. It is found widely in nature and is involved in numerous enzymatic reactions in which it serves as an electron carrier by being alternately oxidized (NAD+) and reduced (NADH). (Dorland, 27th ed) Coenzyme I,DPN,Diphosphopyridine Nucleotide,Nadide,Nicotinamide-Adenine Dinucleotide,Dihydronicotinamide Adenine Dinucleotide,NADH,Adenine Dinucleotide, Dihydronicotinamide,Dinucleotide, Dihydronicotinamide Adenine,Dinucleotide, Nicotinamide-Adenine,Nicotinamide Adenine Dinucleotide,Nucleotide, Diphosphopyridine
D002697 Chloral Hydrate A hypnotic and sedative used in the treatment of INSOMNIA. Noctec,Hydrate, Chloral
D004221 Disulfiram A carbamate derivative used as an alcohol deterrent. It is a relatively nontoxic substance when administered alone, but markedly alters the intermediary metabolism of alcohol. When alcohol is ingested after administration of disulfiram, blood acetaldehyde concentrations are increased, followed by flushing, systemic vasodilation, respiratory difficulties, nausea, hypotension, and other symptoms (acetaldehyde syndrome). It acts by inhibiting aldehyde dehydrogenase. Tetraethylthiuram Disulfide,Alcophobin,Antabus,Antabuse,Anticol,Bis(diethylthiocarbamoyl) Disulfide,Dicupral,Esperal,Tetraethylthioperoxydicarbonic Diamide, ((H2N)C(S))2S2,Teturam,Disulfide, Tetraethylthiuram
D004912 Erythrocytes Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN. Blood Cells, Red,Blood Corpuscles, Red,Red Blood Cells,Red Blood Corpuscles,Blood Cell, Red,Blood Corpuscle, Red,Erythrocyte,Red Blood Cell,Red Blood Corpuscle
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000445 Aldehyde Oxidoreductases Oxidoreductases that are specific for ALDEHYDES. Aldehyde Oxidoreductase,Oxidoreductase, Aldehyde,Oxidoreductases, Aldehyde
D000447 Aldehydes Organic compounds containing a carbonyl group in the form -CHO. Aldehyde

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