Dynamics of Chromatin and Transcription during Transient Depletion of the RSC Chromatin Remodeling Complex.

ABSTRACT: Nucleosome organization has a key role in transcriptional regulation, yet the precise mechanisms establishing nucleosome locations and their effect on transcription are unclear. Here, we use an induced degradation system to screen all yeast ATP-dependent chromatin remodelers. We characterize how rapid clearance of the remodeler affects nucleosome locations. Specifically, depletion of Sth1, the catalytic subunit of the RSC (remodel the structure of chromatin) complex, leads to rapid fill-in of nucleosome-free regions at gene promoters. These changes are reversible upon reintroduction of Sth1 and do not depend on DNA replication. RSC-dependent nucleosome positioning is pivotal in maintaining promoters of lowly expressed genes free from nucleosomes. In contrast, we observe that upon acute str

SUBMITTER: Klein-Brill A 

PROVIDER: S-EPMC6315372 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature