The exact relationship between 3D chromatin interactions and enhancer function is unclear. By probing three-dimensional enhancer interactions in developing embryos, two studies now show nuanced dynamics in tissue-specific contexts and reveal how moderately increased enhancer–promoter interactions coincide with functionality.
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Ibrahim, D.M. Enhancer contacts during embryonic development show diverse interaction modes and modest yet significant increases upon gene activation. Nat Genet 56, 558–560 (2024). https://doi.org/10.1038/s41588-024-01700-2
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DOI: https://doi.org/10.1038/s41588-024-01700-2
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