The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.
Brd4 Recruits P-TEFb to Chromosomes at Late Mitosis To Promote G 1 Gene Expression and Cell Cycle Progression
Open accessAbstract
Brd4, a bromodomain protein capable of interacting with acetylated histones, is implicated in transmitting epigenetic memory through mitosis. It also functions as an associated factor and positive regulator of P-TEFb, a Cdk9-cyclin T1 heterodimer that stimulates transcriptional elongation by phosphorylating RNA polymerase II. In the present study, experiments were performed to determine whether these two functions of Brd4 are interrelated and, if so, how they may impact cell cycle progression. Our data demonstrate that while the P-TEFb level remains constant, the Brd4-P-TEFb interaction increases dramatically in cells progressing from late mitosis to early G(1). Concurrently, P-TEFb is recruited to chromosomes, beginning around mid- to late anaphase and before nuclear envelope/lamina formation and nuclear import of other general transcription factors. Importantly, the recruitment of P-TEFb depends on Brd4. Abrogation of this process through Brd4 knockdown reduces the binding of P-TEFb to and expression of key G(1) and growth-associated genes, leading to G(1) cell cycle arrest and apoptosis. Because P-TEFb is synonymous with productive elongation, its recruitment by Brd4 to chromosomes at late mitosis may indicate those genes whose active transcription status must be preserved across cell division.
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Cites
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Recruitment of P-TEFb for Stimulation of Transcriptional Elongation by the Bromodomain Protein Brd4
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Self-citationElongation by RNA polymerase II: the short and long of it
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Chapuy, B., McKeown, M. R., Lin, C. Y., Monti, S., Roemer, M. G. M., Qi, J., Rahl, P. B., Sun, H. H., Yeda, K. T., Doench, J. G., et al. (2013) · Cancer Cell · doi:10.1016/j.ccr.2013.11.003 · Cited by 735
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Metadata
- Authors
- Yang, Z., He, N., & Zhou, Q.
- Venue
- Molecular and Cellular Biology
- Publisher
- Informa UK Limited
- Published
- 2008-02-01
- Volume
- 28
- Issue
- 3
- Pages
- 967-976
- ISSN
- 0270-7306 (ISSN-L)
- 1098-5549
- OpenAlex
- W2105085478
- Cited by
- 347
- References
- 26
- FWCI
- 4.07
- Type
- journal article
- Language
- en
- Open access
- green
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