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A6941

Sigma-Aldrich

Alcohol Oxidase from Candida boidinii

lyophilized powder, 5-15 units/mg protein

Synonym(s):

AOD1, AOX, Alcohol:oxygen oxidoreductase

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About This Item

CAS Number:
9073-63-6
Enzyme Commission number:
1.1.3.13 (BRENDA, IUBMB)
EC Number:
232-971-3
MDL number:
MFCD00130452
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

fungus (Candida boidinii)

Quality Level

200

form

lyophilized powder

specific activity

5-15 units/mg protein

mol wt

octomer 600 kDa by sedimentation equilibrium

solubility

100 mM potassium phosphate, pH 7.5: soluble 1.0 mg/mL at 25 °C (Cold)

storage temp.

−20°C

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General description

Research area: Cell Signaling

Alcohol Oxidase (AOX) is a homo-octamer composed of eight flavin adenine dinucleotide (FAD) cofactors and belongs to the glucose-methanol-choline (GMC) family of oxidoreductases. The AOX1 and AOX2 genes are responsible for encoding AOX. 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.

Application

Alcohol oxidase has been used:
  • to catalyze the oxidation of short-chain, primary, aliphatic alcohols to their respective aldehydes .
  • to study methanol metabolism in yeasts, such as Candida, Pichia, and Hansenula.
  • to study protein translocation into peroxisomes.
  • for the determination of ethanol concentration in alcoholic drinks using enzymatic assay.
  • in development of enzyme electrode for the determination of alcohols.

Biochem/physiol Actions

Alcohol oxidase has the highest affinity for methanol. The affinity decreases with increasing chain length of the alkyl (R) group. 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. Alcohol oxidases facilitate the conversion of alcohol into carbonyl compounds while producing hydrogen peroxide. It is also the first enzyme in the yeast methanol utilization pathway.

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Alcohol oxidase from Candida boidinii.
H Sahm et al.
Methods in enzymology, 89 Pt D, 424-428 (1982-01-01)
B Vinet
Clinical chemistry, 33(12), 2204-2208 (1987-12-01)
This method for the specific determination of methanol in serum is based on the following two reactions: (formula; see text) Alcohol oxidase is not specific: it converts all lower alcohols to their corresponding aldehydes; however, formaldehyde dehydrogenase is specific and
Yu Sasano et al.
FEMS yeast research, 10(5), 535-544 (2010-05-25)
We identified a gene, designated TRM2, responsible for methanol-inducible gene expression in the methylotrophic yeast Candida boidinii. The encoded protein Trm2p contains two C(2)H(2)-type zinc finger motifs near the N terminus and shows high similarity to Saccharomyces cerevisiae Adr1p and
Ping Zhang et al.
Applied and environmental microbiology, 76(18), 6108-6118 (2010-07-27)
In this work, the identification and characterization of two hexose transporter homologs in the methylotrophic yeast Pichia pastoris, P. pastoris Hxt1 (PpHxt1) and PpHxt2, are described. When expressed in a Saccharomyces cerevisiae hxt-null mutant strain that is unable to take
Yasutaka Sasaki et al.
Journal of bioscience and bioengineering, 110(2), 147-151 (2010-06-16)
We have cloned a gene encoding an alcohol oxidase (AOD) specific to aldehyde alcohols from Paenibacillus sp. AIU 311. The AOD gene contains an open reading frame consisting of 618 nucleotides corresponding to 205 amino acid residues. The deduced amino
View All Related Papers

Protocols

Enzymatic Assay of Alcohol Oxidase (EC 1.1.3.13)

This procedure may be used for all Alcohol Oxidase products. The continuous spectrophotometric rate determination (A405, Light path = 1 cm) is based on the following reactions.

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