Glutaredoxin-1, also known as GRX1 and GLRX, belongs to theglutaredoxin family. Glutaredoxinsare smallredoxenzymes that useglutathioneas a cofactor. Glutaredoxins are oxidized by substrates, and reduced non-enzymatically by glutathione. Glutaredoxin-1 functions as an electron carrier in the glutathione-dependent synthesis of deoxyribonucleotides by the enzyme ribonucleotide reductase. Glutaredoxin-1 exists in either a reduced or an oxidized form. Glutaredoxins function as electron carriers in the glutathione-dependent synthesis ofdeoxyribonucleotidesby the enzymeribonucleotide reductase.
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