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An RNAi Screen of Chromatin Proteins Identifies Tip60-p400 as a Regulator of Embryonic Stem Cell Identity
Open accessAbstract
SUMMARY Proper regulation of chromatin structure is necessary for the maintenance of cell type-specific gene expression patterns. The embryonic stem cell (ESC) expression pattern governs self-renewal and pluripotency. Here, we present an RNAi screen in mouse ESCs of 1008 loci encoding chromatin proteins. We identified 68 proteins that exhibit diverse phenotypes upon knockdown (KD), including seven subunits of the Tip60-p400 complex. Phenotypic analyses revealed that Tip60-p400 is necessary to maintain characteristic features of ESCs. We show that p400 localization to the promoters of both silent and active genes is dependent upon histone H3 lysine 4 trimethylation (H3K4me3). Furthermore, the Tip60-p400 KD gene expression profile is enriched for developmental regulators and significantly overlaps with that of the transcription factor Nanog. Depletion of Nanog reduces p400 binding to target promoters without affecting H3K4me3 levels. Together, these data indicate that Tip60-p400 integrates signals from Nanog and H3K4me3 to regulate gene expression in ESCs.
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Induced Pluripotent Stem Cell Lines Derived from Human Somatic Cells
Yu, J., Vodyanik, M. A., Smuga-Otto, K., Antosiewicz-Bourget, J., Frane, J. L., Tian, S., Nie, J., Jonsdottir, G. A., Ruotti, V., Stewart, R., et al. (2007) · Science · doi:10.1126/science.1151526 · Cited by 10,310
A bivalent chromatin structure marks key developmental genes in embryonic stem cells
Bernstein, B. E., Mikkelsen, T. S., Xie, X., Kamal, M., Huebert, D. J., Cuff, J., Fry, B., Meissner, A., Wernig, M., Plath, K., et al. (2006) · Cell · doi:10.1016/j.cell.2006.02.041 · Cited by 5,361
Maherali, N., Sridharan, R., Xie, W., Utikal, J., Eminli, S., Arnold, K., Stadtfeld, M., Yachechko, R., Tchieu, J., Jaenisch, R., et al. (2007) · Cell stem cell · doi:10.1016/j.stem.2007.05.014 · Cited by 1,725
Functional Dissection of an Innate Immune Response by a Genome-Wide RNAi Screen
Foley, E., & O'Farrell, P. H. (2004) · PLoS Biology · doi:10.1371/journal.pbio.0020203 · Cited by 238
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Metadata
- Authors
- Fazzio, T. G., Huff, J. T., & Panning, B.
- Venue
- Cell
- Publisher
- Elsevier BV
- Published
- 2008-07
- Volume
- 134
- Issue
- 1
- Pages
- 162-174
- ISSN
- 0092-8674 (ISSN-L)
- OpenAlex
- W2162716784
- Cited by
- 442
- References
- 4
- FWCI
- 14.39
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Fazzio, T. G., Huff, J. T., & Panning, B. (2008). An RNAi Screen of Chromatin Proteins Identifies Tip60-p400 as a Regulator of Embryonic Stem Cell Identity. Cell. https://doi.org/10.1016/j.cell.2008.05.031
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