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What is "mycoredoxin"

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Mycoredoxin

Mycoredoxin (, Mrx1, MrxI) is an enzyme with systematic name arseno-mycothiol:mycoredoxin oxidoreductase. This enzyme catalyses the following chemical reaction

arseno-mycothiol + mycoredoxin $\rightleftharpoons$ arsenite + mycothiol-mycoredoxin disulfide

Reduction of arsenate is part of a defense mechanism of the cell against toxic arsenate.