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A6941 Sigma-Aldrich

Alcohol Oxidase from Candida boidinii

lyophilized powder, 5-15 units/mg protein

Synonym: Alcohol:oxygen oxidoreductase



Related Categories 1.1.x.x Acting on hydroxyl groups, 1.x.x.x Oxidoreductases, Alcohol Metabolism, Application Index, Biochemicals and Reagents,
Quality Level   200
form   lyophilized powder
solubility   100 mM potassium phosphate, pH 7.5: soluble 1.0 mg/mL at 25 °C (Cold)
storage temp.   −20°C



Alcohol oxidase is used to catalyze the oxidation of short-chain, primary, aliphatic alcohols to their respective aldehydes . It may be used to study methanol metabolism is yeasts, such as Candida, Pichia, and Hansenula. It is useful to study protein translocation into peroxisomes. Product A6941 is from Candida boidinii and is provided as a lyophilized powder.


50, 250 units in glass bottle

Biochem/physiol Actions

Alcohol oxidase has the highest affinity for methanol. The affinity decreases with increasing chain length of the alkyl (R) group. Alcohol oxidase is primarily localized in the peroxisome but is also found in the cytoplasm. Alcohol oxidase is a 600 kDa homooctomeric flavoprotein with eight equal 74 kDa subunits; each containing a flavin adenine dinucleotide (FAD) molecule. The enzyme shows little activity toward secondary, tertiary, or aromatic alcohols; or aliphatic alcohols with a chain length of more than 5 carbons. The pH range for activity of this product is 6.5-8.5, with the optimum pH being 7.5.

Unit Definition

One unit will oxidize 1.0 μmole of methanol to formaldehyde per min at pH 7.5 at 25 °C.

Physical form

Contains potassium phosphate buffer salts, DTE, and stabilizer

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Protocols & Articles


Enzymatic Assay of Alcohol Oxidase (EC

The continuous spectrophotometric rate determination (A405, Light path = 1 cm) is based on the following reactions:
Keywords: Extinction coefficient

Related Content

Enzymes & Proteins

Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
Keywords: Cell signaling, Diagnostic, Drug discovery, Metabolomics, Molecular biology

Peer-Reviewed Papers


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