Lee, S., Horn, V., Julien, E., Liu, Y., Wysocka, J., Bowerman, B., Hengartner, M. O., Herr, W. (November 2007) Epigenetic Regulation of Histone H3 Serine 10 Phosphorylation Status by HCF-1 Proteins in C. elegans and Mammalian Cells. PLoS ONE, 2 (11). e1213. ISSN 1932-6203 (Electronic)
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Abstract
BACKGROUND: The human herpes simplex virus (HSV) host cell factor HCF-1 is a transcriptional coregulator that associates with both histone methyl- and acetyltransferases, and a histone deacetylase and regulates cell proliferation and division. In HSV-infected cells, HCF-1 associates with the viral protein VP16 to promote formation of a multiprotein-DNA transcriptional activator complex. The ability of HCF proteins to stabilize this VP16-induced complex has been conserved in diverse animal species including Drosophila melanogaster and Caenorhabditis elegans suggesting that VP16 targets a conserved cellular function of HCF-1. METHODOLOGY/PRINCIPAL FINDINGS: To investigate the role of HCF proteins in animal development, we have characterized the effects of loss of the HCF-1 homolog in C. elegans, called Ce HCF-1. Two large hcf-1 deletion mutants (pk924 and ok559) are viable but display reduced fertility. Loss of Ce HCF-1 protein at reduced temperatures (e.g., 12 degrees C), however, leads to a high incidence of embryonic lethality and early embryonic mitotic and cytokinetic defects reminiscent of mammalian cell-division defects upon loss of HCF-1 function. Even when viable, however, at normal temperature, mutant embryos display reduced levels of phospho-histone H3 serine 10 (H3S10P), a modification implicated in both transcriptional and mitotic regulation. Mammalian cells with defective HCF-1 also display defects in mitotic H3S10P status. CONCLUSIONS/SIGNIFICANCE: These results suggest that HCF-1 proteins possess conserved roles in the regulation of cell division and mitotic histone phosphorylation.
| Item Type: | Paper |
|---|---|
| Additional Information: | |
| Subjects: | bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > transcription organism description > virus > herpes simplex virus bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > histone bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein methylation |
| CSHL Authors: | |
| Communities: | CSHL labs > Herr lab |
| Depositing User: | CSHL Librarian |
| Date: | 28 November 2007 |
| Date Deposited: | 11 Nov 2011 14:42 |
| Last Modified: | 30 Mar 2018 16:40 |
| PMCID: | PMC2082077 |
| Related URLs: | |
| URI: | https://repository.cshl.edu/id/eprint/23078 |
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