ArticleResearch square2025
A Chemical Epigenetic Probe to Capture the Site-Specific DNA-Binding Protein Complex.
Article in Research square, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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11 authors.
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Abstract
Site-specific DNA binding by proteins is critical for regulating genetic activity and cell fate decision. However, identifying proteins bound to specific genomic regions (e.g., promoter or enhancer) remains challenging. To address this, we developed a chemical epigenetic tool, named Site-specific non-canonical amino acid resolved Protein EnRichment (SUPER) system, incorporating a photo-crosslinking amino acid into nuclease-deficient dCas9 mutant. Human pluripotent stem cells (hPSCs) carrying SUPER enables the capture of proteins bound to, in theory, any genomic location, facilitating the study of the cell context-dependent DNA-protein interactions. Using SUPER, we identified OCT4/SOX2/CARHSP1 complex binding to the
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