SGD Paper 
Batista-Nascimento L, et al. (2013) Yeast protective response to arsenate involves the repression of the high affinity iron uptake system. Biochim Biophys Acta 1833(5):997-1005
Abstract: Arsenic is a double-edge sword. On the one hand it is powerful carcinogen and on the other it is used therapeutically to treat acute promyelocytic leukemia. Here we report that arsenic activates the iron responsive transcription factor, Aft1, as a consequence of a defective high-affinity iron uptake mediated by Fet3 and Ftr1, whose mRNAs are drastically decreased upon arsenic exposure. Moreover, arsenic causes the internalization and degradation of Fet3. Most importantly, fet3ftr1 mutant exhibits increased arsenic resistance and decreased arsenic accumulation over the wild-type suggesting that Fet3 plays a role in arsenic toxicity. Finally we provide data suggesting that arsenic also disrupts iron uptake in mammals and the link between Fet3, arsenic and iron, can be relevant to clinical applications.
| Status: Published | Type: Journal Article | PubMed ID: 23295455 |
Topics addressed in this paper
Number of different genes curated to this paper: 7
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