A CDC25 homologue from rice functions as an arsenate reductase.

Abstract

Enzymatic reduction of arsenate to arsenite is the first step in arsenate metabolism in all organisms studied. The rice genome contains two ACR2-like genes, OsACR2.1 and OsACR2.2, which may be involved in regulating arsenic metabolism in rice. Here, we cloned both OsACR2 genes and expressed them in an Escherichia coli strain in which the arsC gene was… (More)

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