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Hydroxyurea (HU) is a specific inhibitor of ribonucleotide reductase and thus impairs dNTP synthesis and DNA replication. The long-term transcriptional response of yeast cells to hydroxyurea was investigated using DNA microarrays containing all yeast coding sequences. We show that the redox-responsive Yap regulon and the iron-mobilization Aft regulon are activated in yeast cells treated with HU. Yap1...
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