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The Ubiquitin Carboxyl Hydrolase BAP1 Forms a Ternary Complex with YY1 and HCF-1 and Is a Critical Regulator of Gene Expression

Open access
Yu, Helen, Mashtalir, Nazar, Daou, Salima, Hammond-Martel, Ian, Ross, Julie, Sui, Guangchao, Hart, Gerald W., Rauscher, Frank J., Drobetsky, Elliot, Milot, Eric, Shi, Yang, Affar, El Bachir·2010·Molecular and Cellular Biology

Abstract

The candidate tumor suppressor BAP1 is a deubiquitinating enzyme (DUB) involved in the regulation of cell proliferation, although the molecular mechanisms governing its function remain poorly defined. BAP1 was recently shown to interact with and deubiquitinate the transcriptional regulator host cell factor 1 (HCF-1). Here we show that BAP1 assembles multiprotein complexes containing numerous transcription factors and cofactors, including HCF-1 and the transcription factor Yin Yang 1 (YY1). Through its coiled-coil motif, BAP1 directly interacts with the zinc fingers of YY1. Moreover, HCF-1 interacts with the middle region of YY1 encompassing the glycine-lysine-rich domain and is essential for the formation of a ternary complex with YY1 and BAP1 in vivo. BAP1 activates transcription in an enzymatic-activity-dependent manner and regulates the expression of a variety of genes involved in numerous cellular processes. We further show that BAP1 and HCF-1 are recruited by YY1 to the promoter of the cox7c gene, which encodes a mitochondrial protein used here as a model of BAP1-activated gene expression. Our findings (i) establish a direct link between BAP1 and the transcriptional control of genes regulating cell growth and proliferation and (ii) shed light on a novel mechanism of transcription regulation involving ubiquitin signaling.

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Metadata

Authors
Yu, H., Mashtalir, N., Daou, S., Hammond-Martel, I., Ross, J., Sui, G., Hart, G. W., Rauscher, F. J., Drobetsky, E., Milot, E., Shi, Y., & Affar, E. B.
Venue
Molecular and Cellular Biology
Published
2010-11-01
Volume
30
Issue
21
Pages
5071-5085
ISSN
  • 0270-7306 (ISSN-L)
  • 1098-5549
OpenAlex
W2127015328
Cited by
270
References
6
FWCI
4.84
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The Ubiquitin Carboxyl Hydrolase BAP1 Forms a Ternary Complex with YY1 and HCF-1 and Is a Critical Regulator of Gene Expression. https://app.cochat.ai/papers/10.1128/mcb.00396-10
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Yu, H., Mashtalir, N., Daou, S., Hammond-Martel, I., Ross, J., Sui, G., Hart, G. W., Rauscher, F. J., Drobetsky, E., Milot, E., Shi, Y., & Affar, E. B. (2010). The Ubiquitin Carboxyl Hydrolase BAP1 Forms a Ternary Complex with YY1 and HCF-1 and Is a Critical Regulator of Gene Expression. Molecular and Cellular Biology. https://doi.org/10.1128/mcb.00396-10

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.