| RRC ID |
12581
|
| Author |
Murakami-Tonami Y, Yamada-Namikawa C, Tochigi A, Hasegawa N, Kojima H, Kunimatsu M, Nakanishi M, Murakami H.
|
| Title |
Mei4p coordinates the onset of meiosis I by regulating cdc25+ in fission yeast.
|
| Journal |
Proc Natl Acad Sci U S A
|
| Abstract |
The kinase Cdc2p is a central regulator of entry into and progression through nuclear division during mitosis and meiosis in eukaryotes. Cdc2p is activated at the onset of mitosis by dephosphorylation on tyrosine-15, the phosphorylation status of which is determined mainly by the kinase Wee1p and the phosphatase Cdc25p. In fission yeast, the forkhead-type transcription factor Mei4p is required for expression of many genes during meiosis, with mei4 mutant cells arresting before meiosis I. The mechanism of cell cycle arrest in mei4 cells has remained unknown, however. We now show that cdc25(+) is an important target of Mei4p in control of entry into meiosis I. Forced dephosphorylation of Cdc2p on tyrosine-15 thus induced meiosis I in mei4 mutant cells without a delay, although no spores were formed. We propose that Mei4p acts as a rate-limiting regulator of meiosis I by activating cdc25(+) transcription in coordination with other meiotic events.
|
| Volume |
104(37)
|
| Pages |
14688-93
|
| Published |
2007-9-11
|
| DOI |
10.1073/pnas.0702906104
|
| PII |
0702906104
|
| PMID |
17804800
|
| PMC |
PMC1976235
|
| MeSH |
Cell Cycle Proteins / genetics*
Cell Cycle Proteins / metabolism*
Chromatin Immunoprecipitation
Fungal Proteins / genetics*
Fungal Proteins / metabolism*
Gene Deletion
Gene Expression Regulation, Fungal
Meiosis / genetics*
Schizosaccharomyces / genetics*
Schizosaccharomyces pombe Proteins / genetics
Schizosaccharomyces pombe Proteins / metabolism*
ras-GRF1 / genetics*
ras-GRF1 / metabolism*
|
| IF |
9.412
|
| Times Cited |
15
|
|
WOS Category
|
CELL BIOLOGY
|
| Resource |
| Yeast |
FY17763(HM45)
FY17764(HM599)
FY16052(HM605)
FY17765(HM622)
FY16057(HM1307)
FY17766(HM1309)
FY17767(HM1592)
FY17768(HM1978)
FY17769(HM1986)
FY17770(HM2297)
FY17771(HM3246)
FY17772(HM3830) |
