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Related Concept Videos

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Related Experiment Video

Updated: Feb 10, 2026

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles
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MTF2 recruits Polycomb Repressive Complex 2 by helical-shape-selective DNA binding.

Matteo Perino1, Guido van Mierlo2, Ino D Karemaker2

  • 1Department of Molecular Developmental Biology, Radboud University, Faculty of Science, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands.

Nature Genetics
|May 30, 2018
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MTF2 acts as a DNA-binding recruiter for Polycomb Repressive Complex 2 (PRC2) in mouse embryonic stem cells. This essential function ensures proper gene expression regulation during development by guiding PRC2 to target genes.

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Area of Science:

  • Epigenetics
  • Developmental Biology
  • Molecular Biology

Background:

  • Polycomb-mediated gene repression is crucial for development.
  • Histone H3 lysine 27 trimethylation (H3K27me3) by Polycomb Repressive Complex 2 (PRC2) is a key epigenetic mark.
  • Mechanisms of PRC2 recruitment to target genes, especially in vertebrates, are not well understood.

Purpose of the Study:

  • To identify and characterize the role of MTF2 in the recruitment of PRC2 to target genes in mouse embryonic stem cells.
  • To elucidate the DNA-binding properties and specificity of MTF2 in relation to PRC2 recruitment.
  • To understand the impact of MTF2 on H3K27me3 deposition and gene expression.

Main Methods:

  • Utilized mouse embryonic stem cells, including Mtf2 knockout models.
  • Performed in vitro and in vivo assays to assess DNA binding and PRC2 recruitment.
  • Conducted genome-wide analysis of EZH2 and H3K27me3 deposition.
  • Investigated the sequence and structural context of MTF2 DNA binding sites.

Main Results:

  • MTF2 functions as a DNA-binding, methylation-sensitive recruiter of PRC2.
  • MTF2 is essential for the in vitro and in vivo recruitment of PRC2.
  • Loss of MTF2 abrogates genome-wide recruitment of EZH2 and reduces H3K27me3 deposition.
  • MTF2 selectively binds unmethylated CpG-rich regions with specific DNA helix twist characteristics.

Conclusions:

  • MTF2 plays a critical and instructive role in directing PRC2 to specific genomic targets.
  • This mechanism is vital for Polycomb-mediated gene repression during development.
  • MTF2's DNA-binding specificity provides insight into the targeted nature of PRC2 action.