Transcriptomics

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Acetylation-dependent Multimerization of SAGA Regulates Gene Transcription


ABSTRACT: In Saccharomyces cerevisiae, the SAGA complex regulates its own activity by undergoing multimerization. This multimerization is triggered by SAGA autoacetylation at three sites on its Ada3 subunit, allowing recognition of this acetylation by the bromodomain of the Gcn5/Spt7 SAGA subunit. Once multimerized, SAGA is capable of cooperatively acetylating chromatin, and an inability to autoacetylate Ada3 leads to transcriptional and phenotypic defects in a wide range of stress-activated genes. The SAGA multimerization increased significantly in media with Sucorse as the only carbon resource than that with Glucose. In this study, the high-throughput sequence of wild type (WT) strain, Ada3 acetylation mutant (Ada3-3KR), Gcn5 bromodomain mutant (Gcn5m) and Spt7 bromodomain mutant (Spt7m) indicate a new function for Ada3 acetylation, show which genes transcription can be regulated by SAGA multimers.

ORGANISM(S): Saccharomyces cerevisiae

PROVIDER: GSE161887 | GEO | 2021/11/29

REPOSITORIES: GEO

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