Coordinated repression of totipotency-associated gene loci by histone methyltransferase EHMT2 through binding to LINE-1 regulatory elements
2024

How a Protein Affects Stem Cell Development

publication

Author Information

Author(s): Chatterjee K, Uyehara CM, Kasliwal K, Madhuranath S, Scourzic L, Polyzos A, Apostolou E, Stadtfeld M

Primary Institution: Cold Spring Harbor Laboratory

Hypothesis

EHMT2 acts as a repressor of totipotency-associated gene loci during the transition of mouse embryonic stem cells to 2-cell-like cells.

Conclusion

EHMT2 plays a crucial role in regulating gene expression during the early stages of stem cell differentiation.

Supporting Evidence

  • EHMT2 directly represses large clusters of co-regulated gene loci.
  • EHMT2 depletion increases the expression of ZGA-associated transcripts in 2CLCs.
  • EHMT2 collaborates with ZFP462 to repress germ layer-associated transcripts.

Takeaway

This study shows that a protein called EHMT2 helps control how stem cells develop into different types of cells, which is important for understanding early development.

Methodology

The study used a multipurpose allele for acute protein depletion and immunoprecipitation to analyze the functions of EHMT2.

Digital Object Identifier (DOI)

10.1101/2024.12.18.629181

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