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Gene and DNA Sequence
Record information and status
Record ID
115756
Status
Published
Date of creation
2020-11-17 21:13 UTC (austein.mcloughlin@cbd.int)
Date of publication
2020-11-17 21:13 UTC (austein.mcloughlin@cbd.int)

General information
Name of the gene or DNA sequence
Oxalate oxidase
Abbreviation
OxO
Category of DNA sequence
  • Protein coding sequence
Is the gene / DNA sequence is a synthetic molecule?
No
Donor organism
Donor organism
Triticum aestivum - Wheat
Characteristics of the protein coding sequence
Biological function
The protein oxalate oxidase catalyzes the following reaction:

(COOH)2 + O2 = 2 CO2 + H2O2

Oxalate oxidase may have various roles in the cell. Since plants store calcium ions as calcium oxalate, oxalate oxidase may allow plants to access calcium ions during periods of stress or senescence. Influxes of calcium ions may also help sustain the oxidative burst of hydrogen peroxide related to the hypersensitive response and lignification. The hydrogen peroxide produced from this reaction could also be involved in strengthening the cell wall and is toxic to microorganisms. The overexpression of the protein may also promote salicylic acid synthesis and induction of signaling cascades involved in plant defense. Transgenic applications of the protein confer tolerance to fungal pathogens reliant on oxalic acid secretion. The enzyme also appears to be involved during wheat embryo development as the protein is glycosylated to the cell wall to provide hydrogen peroxide for cross-linking reactions during cell wall expansion and lignification.
Related trait(s) or use(s) in biotechnology

Records referencing this document (1)
IDDescription
1record(s) found
Modified Organism1 record