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PRC2-RNA interactions: Viewpoint from Tom Cech, Chen Davidovich, and Richard Jenner

Thomas R Cech1, Chen Davidovich2, Richard G Jenner3

  • 1Department of Biochemistry, BioFrontiers Institute, and Howard Hughes Medical Institute, University of Colorado, Boulder, CO 80309, USA.

Molecular Cell
|October 4, 2024
PubMed

Insights

RNAs regulate polycomb repressive complex 2 (PRC2) activity, impacting epigenetic states. Capturing these essential RNA-PRC2 interactions in living cells presents significant challenges.

Area of Science:

  • Biochemistry
  • Epigenetics
  • Molecular Biology

Background:

  • Polycomb repressive complex 2 (PRC2) is crucial for epigenetic regulation.
  • RNA molecules are increasingly recognized as regulators of epigenetic modifiers.
  • Existing models propose diverse mechanisms for RNA-mediated PRC2 regulation.

Purpose of the Study:

  • To summarize current research on RNA regulation of PRC2.
  • To highlight the role of RNA in maintaining epigenetic states.
  • To discuss challenges in studying PRC2-RNA interactions in vivo.

Main Methods:

  • Literature review of biochemical and structural studies.
  • Analysis of in vivo data.
  • Conceptual synthesis of existing research.

Main Results:

  • Multiple lines of evidence support RNA's role in modulating PRC2 activity.
  • RNA interactions are proposed to be key for epigenetic state maintenance.
  • In vivo studies face difficulties in capturing relevant PRC2-RNA interactions.

Conclusions:

  • RNA-dependent regulation of PRC2 is a significant mechanism in epigenetics.
  • Further research is needed to overcome technical hurdles in studying these interactions within living cells.

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