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Gene bookmarking accelerates the kinetics of post-mitotic transcriptional re-activation

Open access
Zhao, Rui, Nakamura, Tetsuya, Fu, Yu, Lazar, Zsolt, Spector, David L.·2011·Nature Cell Biology

Abstract

Although transmission of the gene expression program from mother to daughter cells has been suggested to be mediated by gene bookmarking, the precise mechanism by which bookmarking mediates post-mitotic transcriptional re-activation has been unclear. Here, we used a real-time gene expression system to quantitatively demonstrate that transcriptional activation of the same genetic locus occurs with a significantly more rapid kinetics in post-mitotic cells versus interphase cells. RNA polymerase II large subunit (Pol II) and bromodomain protein 4 (BRD4) were recruited to the locus in a different sequential order on interphase initiation versus post-mitotic re-activation resulting from the recognition by BRD4 of increased levels of histone H4 Lys 5 acetylation (H4K5ac) on the previously activated locus. BRD4 accelerated the dynamics of messenger RNA synthesis by de-compacting chromatin and hence facilitating transcriptional re-activation. Using a real-time quantitative approach, we identified differences in the kinetics of transcriptional activation between interphase and post-mitotic cells that are mediated by a chromatin-based epigenetic mechanism.

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Metadata

Authors
Zhao, R., Nakamura, T., Fu, Y., Lazar, Z., & Spector, D. L.
Venue
Nature Cell Biology
Published
2011-10-09
Volume
13
Issue
11
Pages
1295-1304
ISSN
  • 1465-7392 (ISSN-L)
  • 1476-4679
OpenAlex
W1980328649
Cited by
253
References
54
FWCI
7.64
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Gene bookmarking accelerates the kinetics of post-mitotic transcriptional re-activation. https://app.cochat.ai/papers/10.1038/ncb2341
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Zhao, R., Nakamura, T., Fu, Y., Lazar, Z., & Spector, D. L. (2011). Gene bookmarking accelerates the kinetics of post-mitotic transcriptional re-activation. Nature Cell Biology. https://doi.org/10.1038/ncb2341

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