Cell-cycle dependent GATA2 subcellular localization in mouse 2-cell embryos

Masaya Komatsu, Hayato Tsukahara, Hanako Bai, Masashi Takahashi, Takuya Wakai, Manabu Kawahara

Research output: Contribution to journalArticlepeer-review


GATA factors are essential transcription factors for embryonic development that broadly control the transcription of other genes. This study aimed to examine GATA2 protein localization in mouse embryos at the 2-cell stage, when drastic transformation in gene expression occurs for subsequent development in early embryos. We first analyzed GATA2 localization in 2-cell embryos at the interphase and mitotic phases by immunofluorescence analysis. In the interphase, GATA2 protein was localized in the nucleus, as a common transcription factor. In the mitotic phase, GATA2 protein was observed as a focally-aggregated spot around the nucleus of each blastomere. To explore the relationship between GATA2 protein localization and cell cycle progression in mouse 2-cell stage embryos, GFP-labeled GATA2 protein was overexpressed in the blastomere of 2-cell embryos. Overexpression of GFP-labeled GATA2 protein arrested cellular mitosis, focally aggregated GATA2 protein expression was not observed. This mitotic arrest by GATA2 overexpression was not accompanied with the upregulation of a 2-cell stage specific gene, murine endogenous retrovirus-L. These results suggest that GATA2 protein localization changes dynamically depending on cell cycle progression in mouse 2-cell embryos; in particular, focally aggregated localization of GATA2 in the mitotic phase requires appropriate cell cycle progression.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalBiochemical and Biophysical Research Communications
Publication statusPublished - Dec 20 2021


  • 2-Cell embryos
  • Cell cycle
  • GATA2
  • Intracellular localization
  • Mouse

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology


Dive into the research topics of 'Cell-cycle dependent GATA2 subcellular localization in mouse 2-cell embryos'. Together they form a unique fingerprint.

Cite this