cerevisiae genome by gene deletion and parallel analysis The yeast aquaglyceroporin Fps1p is a bidirectional arsenite channel. Transcriptional activation of metalloid tolerance genes in Saccharomyces cerevisiae requires the AP-1-like proteins Yap1p and Yap8p. The yeast permease Acr3p is a dual arsenite and antimonite plasma membrane transporter. The MAPK Hog1p modulates Fps1p-dependent arsenite uptake and tolerance in yeast. CDK Pho85 targets CDK inhibitor Sic1 to relieve yeast G1 checkpoint arrest after DNA damage. Multiple cysteine residues are necessary for sorting and transport activity of the arsenite permease Acr3p from Saccharomyces cerevisiae. Yeast G1 DNA damage checkpoint regulation by H2A phosphorylation is independent of chromatin remodeling Role of Dot1-dependent histone H3 methylation in G1 and S phase DNA damage checkpoint functions of Rad9. Characterization of the DNA-binding motif of the arsenic-responsive transcription factor Yap8p. Acr3p is a plasma membrane antiporter that catalyzes As(III)/H(+) and Sb(III)/H(+) exchange in Saccharomyces cerevisiae. Design, synthesis, and characterization of a highly effective Hog1 inhibitor: a powerful tool for analyzing MAP kinase signaling in yeast Oxidative stress and replication-independent DNA breakage induced by arsenic in Saccharomyces cerevisiae