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Regulation of Krüpple-Like Factor 5 by Targeted Protein Degradation

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Transcription Factors

Part of the book series: Methods in Molecular Biology ((MIMB,volume 647))

Abstract

Transcription factors are usually unstable proteins. The degradation of the majority of transcription factors is through the ubiquitin proteasome pathway and is tightly regulated by E3 ubiquitin ligases. KLF5 is an important transcription factor regulating cell proliferation, cell cycle, survival, migration, differentiation, angiogenesis, and stem cell self-renewal. We have shown that the WWP1 E3 ligase targets KLF5 for ubiquitin-mediated degradation. Several methods to determine whether a protein is ubiquitinated have been described [Kaiser, Tagwerker (Methods Enzymol 399:243–248, 2005); Bloom, Pagano (Methods Enzymol 399:249–266, 2005)]. This chapter focuses on experimental approaches testing KLF5 transcription factor ubiquitination and degradation by its E3s.

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Acknowledgments

This work was supported in part by a grant (RSG-08-199-01) from the American Cancer Society, a grant (BCTR0503705) from Komen for the Cure, and a grant (W81XWH-07-1-0191) from the Department of Defense.

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Authors and Affiliations

  1. Center for Cell Biology and Cancer Research, Albany Medical College, Albany, NY, USA

    Ceshi Chen

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  1. Ceshi Chen
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Correspondence to Ceshi Chen .

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Editors and Affiliations

  1. Ctr. Cell Biology & Cancer Research, Albany Medical College, New Scotland Ave. 47, Albany, 12208, New York, USA

    Paul J. Higgins

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Chen, C. (2010). Regulation of Krüpple-Like Factor 5 by Targeted Protein Degradation. In: Higgins, P. (eds) Transcription Factors. Methods in Molecular Biology, vol 647. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-60761-738-9_16

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  • DOI: https://doi.org/10.1007/978-1-60761-738-9_16

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  • Publisher Name: Humana Press, Totowa, NJ

  • Print ISBN: 978-1-60761-737-2

  • Online ISBN: 978-1-60761-738-9

  • eBook Packages: Springer Protocols

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