Genomics

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CUT&RUN Sequencing of EZH2 binding sites in HEK293T cells expressing a Dual-specificity Aptamer that specifically increases O-GlcNAcylation on beta-catenin

ABSTRACT: O-GlcNAc is a dynamic post-translational modification on thousands of intracellular proteins, it regulates protein functions and is involved in many metabolic diseases. Using a dual-specificity aptamer, we targeted the O-GlcNAc transferase (OGT) to endogenous β-catenin and specifically increased O-GlcNAcylation of β-catenin. We found that O-GlcNAc on β-catenin promoted its interaction with EZH2 regardless of the Wnt signaling status. To study how this interaction regulates the distribution of EZH2 on the genome, we performed Cleavage Under Targets and Release Using Nuclease (CUT&RUN) on HEK293T cells expressing individual (Ctrl.) or dual-specificity aptamers. Under Wnt - and Wnt + conditions, the dual-specificity aptamer increased the binding of EZH2 on 923 and 3473 genomic sites, respectively. These two sets of differential binding sites showed little overlap.

ORGANISM(S): Homo sapiens

PROVIDER: GSE190172 | GEO | 2022/11/30

REPOSITORIES: GEO

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