In vivo chromatin remodeling by yeast ISWi homologs Isw1p and Isw2p
Kent, N.A.; Karabetsou, N.; Politis, P.K.; Mellor, J.
Genes and Development 15(5): 619-626
Isw1p and Isw2p are budding yeast homologs of the Drosophila ISWI chromatin-remodeling ATPase. Using indirect-end-label and chromatin immunoprecipitation analysis, we show both independent and cooperative Isw1p- and Isw2p-mediated positioning of short nucleosome arrays in gene-regulatory elements at a variety of transcription units in vivo. We present evidence that both yeast ISWI complexes regulate developmental responses to starvation and that for Isw2p, recruitment by different DNA-binding proteins controls meiosis and haploid invasive growth.