ArticleNucleic acids research2019
The E3-ligases SCFPpa and APC/CCdh1 co-operate to regulate CENP-ACID expression across the cell cycle.
Article in Nucleic acids research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 13 citations in OpenAlex.
- Target Identification and Mechanistic Characterization of Indole Terpenoid Mimics: Proper Spindle Microtubule Assembly Is Essential for Cdh1-Mediated Proteolysis of CENP-A.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Recent insights into mechanisms preventing ectopic centromere formation.Open biology · 2021Review
- Reduce, Retain, Recycle: Mechanisms for Promoting Histone Protein Degradation versus Stability and Retention.Molecular and cellular biology · 2021Review
- APC/C ubiquitin ligase: Functions and mechanisms in tumorigenesis.Seminars in cancer biology · 2020Review
- Minimal Cylinder Analysis Reveals the Mechanical Properties of Oncogenic Nucleosomes.Biophysical journal · 2020Article
- Skp, Cullin, F-box (SCF)-Met30 and SCF-Cdc4-Mediated Proteolysis of CENP-A Prevents Mislocalization of CENP-A for Chromosomal Stability in Budding Yeast.PLoS genetics · 2020Article
- Localization of Drosophila CENP-A to non-centromeric sites depends on the NuRD complex.Nucleic acids research · 2019Article
- Phosphorylation of Drosophila CENP-A on serine 20 regulates protein turn-over and centromere-specific loading.Nucleic acids research · 2019Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Centromere identity is determined by the specific deposition of CENP-A, a histone H3 variant localizing exclusively at centromeres. Increased CENP-A expression, which is a frequent event in cancer, causes mislocalization, ectopic kinetochore assembly and genomic instability. Proteolysis regulates CENP-A expression and prevents its misincorporation across chromatin. How proteolysis restricts CENP-A localization to centromeres is not well understood. Here we report that, in Drosophila, CENP-ACID expression levels are regulated throughout the cell cycle by the combined action of SCFPpa and APC/CCdh1. We show that SCFPpa regulates CENP-ACID expression in G1 and, importantly, in S-phase preventing its promiscuous incorporation across chromatin during replication. In G1, CENP-ACID expression is also regulated by APC/CCdh1. We also show that Cal1, the specific chaperone that deposits CENP-ACID at centromeres, protects CENP-ACID from SCFPpa-mediated degradation but not from APC/CCdh1-mediated degradation. These results suggest that, whereas SCFPpa targets the fraction of CENP-ACID that is not in complex with Cal1, APC/CCdh1 mediates also degradation of the Cal1-CENP-ACID complex and, thus, likely contributes to the regulation of centromeric CENP-ACID deposition.
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