Ascorbate Oxidase (Lyophilized powder)


Catalog #: P2010007 (1000 U)

Ascorbate oxidase catalyzes the following reaction: Ascorbic acid + 1/2 O2 → Dehydroascorbic acid + H2O. Ascorbate oxidase is an oxidoreductase involved in the metabolism of ascorbic acid that uses copper as a cofactor. Applications of this enzyme include the attenuation of ascorbic acid interference in various immuno and enzymatic diagnostic assays.

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Ascorbate Oxidase (Microbial).

Catalog # P2010007
Size 1000 U
Unit Definition Amount of enzyme needed to oxidize 1 μmole of ascorbate to dehydroascorbate per minute at 30 ℃.
Molecular Weight 80 kDa
Specific Activity 350 U/mg
Purity Uricase, phosphatase < 0.001%
Storage -20°C. Avoid repeated freeze/thaw cycles.
Supplied as Light Blue lyophilized powder
Keywords Ascorbate oxidase, L-ascorbic acid oxidase, ascorbic acid



  • A novel case of ACOX2 deficiency leads to recognition of a third human peroxisomal acyl-CoA oxidase. Ferdinandusse S, Denis S, van Roermund CWT, Preece MA, Koster J, Ebberink MS, Waterham HR, Wanders RJA. Biochim Biophys Acta Mol Basis Dis. 2018 Mar;1864(3):952-958.
  • Oxidase Activity of the Barnacle Adhesive Interface Involves Peroxide-Dependent Catechol Oxidase and Lysyl Oxidase Enzymes. So CR, Scancella JM, Fears KP, Essock-Burns T, Haynes SE, Leary DH, Diana Z, Wang C, North S, Oh CS, Wang Z, Orihuela B, Rittschof D, Spillmann CM, Wahl KJ. ACS Appl Mater Interfaces. 2017 Apr 5;9(13):11493-11505.
  • Zymographic Determination of Intrinsic Specific Activity of Oxidases in the Presence of Interfering Proteins. Le TC, Mateescu MA, Ahmadifar S, Marcocci L, Pietrangeli P. Methods Mol Biol. 2018;1853:207-221.
  • A biochemical approach to study the role of the terminal oxidases in aerobic respiration in Shewanella oneidensis MR-1. Le Laz S, Kpebe A, Bauzan M, Lignon S, Rousset M, Brugna M. PLoS One. 2014 Jan 22;9(1):e86343.
  • The crystal structure of an extracellular catechol oxidase from the ascomycete fungus Aspergillus oryzae. Hakulinen N, Gasparetti C, Kaljunen H, Kruus K, Rouvinen J. J Biol Inorg Chem. 2013 Dec;18(8):917-29.
  • Immunoblot analyses of the elicited Sanguinaria canadensis enzyme, dihydrobenzophenanthridine oxidase: evidence for resolution from a polyphenol oxidase isozyme. Ignatov A, Neuman MC, Barg R, Krueger RJ, Coscia CJ. Arch Biochem Biophys. 1997 Nov 15;347(2):208-12.
  • Defining the role of tyrosine and rational tuning of oxidase activity by genetic incorporation of unnatural tyrosine analogs. Yu Y, Lv X, Li J, Zhou Q, Cui C, Hosseinzadeh P, Mukherjee A, Nilges MJ, Wang J, Lu Y. J Am Chem Soc. 2015 Apr 15;137(14):4594-7.

Additional information

Weight 32 oz
Dimensions 8 × 6.75 × 5.5 in

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