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A9770 Sigma-Aldrich

Aldehyde Dehydrogenase, potassium-activated from yeast

Synonym: Aldehyde:NAD[P]+ oxidoreductase



Related Categories 1.2.x.x Acting on aldehydes or oxo groups, 1.x.x.x Oxidoreductases, Biochemicals and Reagents, Enzyme Class Index, Enzymes, Inhibitors, and Substrates More...
form   lyophilized powder
activity   ≥10 units/mg protein
storage temp.   2-8°C



25, 100, 250 units in poly bottle

Physical form

Contains potassium phosphate salts


Aldehyde dehydrogenase, from yeast, is used to catalyze the oxidation of a wide range of substrates, such as acetaldehyde, formaldehyde, propionaldehyde, n-butylaldehyde, isobutylaldehyde, n-valeraldehyde, caproaldehyde, benzaldehyde, glycoaldehyde, D-glyceraldehyde, malonic semialdehyde, and succinic aldehyde. Aldehyde dehydrogenase, from yeast has been used to study the production of ethanol and isobutanol. Aldehyde dehydrogenase, from Sigma, has been used along with alcohol dehydrogenase to measure ethanol production during characterization of glycolytic metabolism and ion transport in Candida albicans.

Biochem/physiol Actions

Aldehyde dehydrogenase is a tetramer and has several different isoforms. Aldehyde dehydrogenase is inhibited by propylurea, crotonaldehyde, n-propyl isocyanate, cyclohexyl isocyanate, 1-n-propyl-1-[(4-chlorophenyl)sulphonyl]-3-n-propylurea, and 1-methyl-1-[(4-chlorophenyl)sulphonyl]-3-n-propylurea. The enzyme tested in 0.01 M pyrophosphate buffer shows a sharp optimum around pH 9.3 with acetaldehyde as substrate.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
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The lot specific COA document can be found by entering the lot number above under the "Documents" section.
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What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
What is the molecular weight of Aldehyde Dehydrogenase, potassium-activated from baker's yeast (S.cerevisiae), product A9770?
Aldehyde dehydrogenase from bakers yeast, product A9770,is a tetramer consisting of subunits of 57 kDa. The molecular weights of its monomer, dimer, trimer, and tetramer are 57 kDa, 114 kDa, 171 kDa, and 228 kDa respectively. The monomers are thought to be assembled into tetramers in a heterologous square arrangement.
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Protocols & Articles

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Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
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