Arsenate reductase (azurin)

In enzymology, an arsenate reductase (azurin) is an enzyme that catalyzes the chemical reaction

arsenite + H2O + 2 azurinox rightleftharpoons arsenate + 2 azurinred + 2 H+

The 3 substrates of this enzyme are arsenite, H2O, and azurinox, whereas its 3 products are arsenate, azurinred, and H+.

This enzyme belongs to the family of oxidoreductases, specifically those acting on phosphorus or arsenic in donor with other, known, acceptors. The systematic name of this enzyme class is arsenite:azurin oxidoreductase. This enzyme is also called arsenite oxidase.


  • Anderson GL, Williams J, Hille R "The purification and characterization of arsenite oxidase from Alcaligenes faecalis, a molybdenum-containing hydroxylase". J. Biol. Chem. 267 23674–82.
  • Ellis PJ, Conrads T, Hille R, Kuhn P "Crystal structure of the 100 kDa arsenite oxidase from Alcaligenes faecalis in two crystal forms at 1.64 A and 2.03 A". S Structure. 125–32.

External links

Gene Ontology (GO) codes

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