Overexpression of FAP7, MIG3, TMA19, or YLR392c confers resistance to arsenite on Saccharomyces cerevisiae

To elucidate mechanisms of arsenic toxicity and biological defense mechanisms against arsenic, we searched for genes that, when overexpressed, conferred arsenite resistance on yeast. Employing a Saccharomyces cerevisiae open reading frame (ORF) library, four genes associated with arsenite resistance, PAP7, MIG3, TMA19, and YLR392c, were identified.