The fission yeast meiotic regulator Mei2p undergoes nucleocytoplasmic shuttling

Masamitsu Sato, Satoko Shinozaki-Yabana, Akira Yamashita, Yoshinori Watanabe, Masayuki Yamamoto*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


Schizosaccharomyces pombe Mei2p is an RNA-binding protein that switches the cell cycle from mitotic to meiotic. Mei2p forms a unique dot in the nucleus prior to meiosis I, aided by a non-coding RNA molecule termed meiRNA. Here we show that Mei2p intrinsically undergoes nucleocytoplasmic shuttling. Artificial acceleration of nuclear migration of Mei2p advances nuclear dot formation, but meiRNA does not appear to promote the dot formation by modulating the migration rate of Mei2p into the nucleus. Rather, this RNA is likely to facilitate the assembly of Mei2p into a dot structure and trap the protein as such in the nucleus.

Original languageEnglish
Pages (from-to)251-255
Number of pages5
JournalFEBS Letters
Issue number3
Publication statusPublished - 2001 Jun 22
Externally publishedYes


  • Meiosis
  • Nuclear export
  • Nuclear import
  • Nucleocytoplasmic shuttling
  • RNA-binding protein
  • meiRNA

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology


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