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Updated: Mar 11, 2026
05:35
Immunofluorescence Analysis of Endogenous and Exogenous Centromere-kinetochore Proteins
Published on: March 3, 2016
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Centromere protein W interacts with beta-transducin repeat-containing protein 1 and modulates its subcellular
Yeongmi Cheon1, Seyeong Jeon1, Soojin Lee1
1Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon, Korea.
FEBS Letters
|November 19, 2016
Summary
Centromere protein W (CENP-W) cooperates with hnRNP U to shuttle beta-transducin repeat-containing protein 1 (β-TrCP1). CENP-W overexpression boosts nuclear β-TrCP1, potentially increasing cancer oncogenicity.
Area of Science:
- Cell biology
- Molecular oncology
- Protein dynamics
Background:
- Beta-transducin repeat-containing protein 1 (β-TrCP1) is crucial for SCFβ-TrCP1 ubiquitin ligase specificity.
- Subcellular localization of β-TrCP1 dictates its target interactions.
- Heterogeneous nuclear ribonucleoprotein U (hnRNP U) regulates β-TrCP1 nucleocytoplasmic shuttling.
Discussion:
- Centromere protein W (CENP-W), often overexpressed in cancers, also influences β-TrCP1 shuttling.
- hnRNP U and CENP-W bind β-TrCP1 independently but cooperatively form a stable shuttling complex.
- CENP-W overexpression results in nuclear accumulation of β-TrCP1.
Key Insights:
- CENP-W and hnRNP U form a cooperative complex for β-TrCP1 shuttling.
- CENP-W enhances β-TrCP1 nuclear import.
- Nuclear β-TrCP1 accumulation driven by CENP-W may promote oncogenesis.
Outlook:
- Investigating CENP-W as a therapeutic target in cancer.
- Elucidating the precise mechanisms of the CENP-W/hnRNP U/β-TrCP1 complex.
- Exploring the role of nuclear β-TrCP1 in various cancer types.
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