Genome wide expression profile of ada1 and gcn5 deletion strains in Saccharomycescerevisiae

Ada1, Spt-Ada-Gcn5 Acetyltransferase (SAGA) complex component, was isolated as boundary factor that separated silenced chromatin and euchromatin by previous screening, and Ada1 maintains SAGA complex integrity. SAGA complex is one of a histone modification complex that has multiple functions contributing to transcriptional activation. In Saccharomyces cerevisiae, silencing is occurred by Sir protein complex, which deacetylates histones and form high-order chromatin structure. Gcn5, SAGA complex component, has histone acetyltransferase activity, which is considered that antagonize to silencing by the screening.

4