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July 8, 2026Cell DiscoveryOpen Access

PRC1 nanoglobules organize Hox chromatin during Drosophila embryogenesis

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Authors

TCThierry CheutinNANazli AkilliMSMarco Di Stefano

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Overview

Randomized trial analyzes chromatin organization in Drosophila embryos, suggesting PRC1 nanoglobules are crucial for gene silencing.

Key Points

  • To investigate the role of PRC1 nanoglobules in organizing Hox chromatin during Drosophila embryogenesis.
  • Analyzed Drosophila embryos using superresolution stimulated emission depletion microscopy.
  • Identified PRC1 nanoglobules and their association with Polycomb response elements (PREs).
  • Utilized polymer simulations to assess interactions among PREs and PRC1 nanoglobules.
  • PRC1 nanoglobules are dynamically associated with Hox gene clusters, more than surrounding H3K27me3 chromatin.
  • Chromatin substructures were found to partially overlap with PRC1 nanoglobules, indicating different assemblies.
  • Polymer simulations suggest that PREs interact with PRC1 nanoglobules, aiding in the compaction and positioning of the BX-C domain.

Cite This Study

Cheutin et al. (2026) studied this question.

synapsesocial.com/papers/6a4dea63d2ea289ef6284292https://doi.org/10.1038/s41421-026-00902-8
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