Document Detail


The forkhead transcription factor Fkh2 regulates the cell division cycle of Schizosaccharomyces pombe.
MedLine Citation:
PMID:  15302827     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In eukaryotes the regulation of gene expression plays a key role in controlling cell cycle progression. Here, we demonstrate that a forkhead transcription factor, Fkh2, regulates the periodic expression of cdc15(+) and spo12(+) in the M and G(1) phases of the cell division cycle in the fission yeast Schizosaccharomyces pombe. We also show that Fkh2 is important for several cell cycle processes, including cell morphology and cell separation, nuclear structure and migration, and mitotic spindle function. We find that the expression of fkh2(+) is itself regulated in a cell cycle-dependent manner in G(1) coincident with the expression of cdc18(+), a Cdc10-regulated gene. However, fkh2(+) expression is independent of Cdc10 function. Fkh2 was found to be phosphorylated during the cell division cycle, with a timing that suggests that this posttranslational modification is important for cdc15(+) and spo12(+) expression. Related forkhead proteins regulate G(2) and M phase-specific gene expression in the evolutionarily distant Saccharomyces cerevisiae, suggesting that these proteins play conserved roles in regulating cell cycle processes in eukaryotes.
Authors:
Richard Bulmer; Aline Pic-Taylor; Simon K Whitehall; Kate A Martin; Jonathan B A Millar; Janet Quinn; Brian A Morgan
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Eukaryotic cell     Volume:  3     ISSN:  1535-9778     ISO Abbreviation:  Eukaryotic Cell     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-08-10     Completed Date:  2005-09-02     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  101130731     Medline TA:  Eukaryot Cell     Country:  United States    
Other Details:
Languages:  eng     Pagination:  944-54     Citation Subset:  IM    
Affiliation:
Institute of Cell and Molecular Biosciences, Faculty of Medical Sciences, University of Newcastle upon Tyne, Newcastle upon Tyne NE2 4HH, United Kingdom.
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MeSH Terms
Descriptor/Qualifier:
Amino Acid Sequence
Cell Cycle / physiology*
Cell Cycle Proteins / genetics,  metabolism
Fungal Proteins / genetics,  metabolism
GTP Phosphohydrolases
GTP-Binding Proteins / genetics,  metabolism
Gene Expression Regulation, Fungal*
Membrane Proteins
Molecular Sequence Data
Saccharomyces cerevisiae Proteins
Schizosaccharomyces / cytology,  physiology*
Schizosaccharomyces pombe Proteins / chemistry,  genetics,  metabolism*
Sequence Alignment
Transcription Factors / chemistry,  genetics,  metabolism*
Chemical
Reg. No./Substance:
0/CDC15 protein; 0/Cell Cycle Proteins; 0/Fkh2 protein, S pombe; 0/Fungal Proteins; 0/Membrane Proteins; 0/Saccharomyces cerevisiae Proteins; 0/Schizosaccharomyces pombe Proteins; 0/Transcription Factors; 0/cdc10 protein, S pombe; 0/spo12 protein, S pombe; EC 3.6.1.-/CDC10 protein, S cerevisiae; EC 3.6.1.-/GTP Phosphohydrolases; EC 3.6.1.-/GTP-Binding Proteins
Comments/Corrections

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