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- W2011427175 abstract "Clathrin depletion by ribonucleic acid interference (RNAi) impairs mitotic spindle stability and cytokinesis. Depletion of several clathrin-associated proteins affects centrosome integrity, suggesting a further cell cycle function for clathrin. In this paper, we report that RNAi depletion of CHC17 (clathrin heavy chain 17) clathrin, but not the CHC22 clathrin isoform, induced centrosome amplification and multipolar spindles. To stage clathrin function within the cell cycle, a cell line expressing SNAP-tagged clathrin light chains was generated. Acute clathrin inactivation by chemical dimerization of the SNAP-tag during S phase caused reduction of both clathrin and ch-TOG (colonic, hepatic tumor overexpressed gene) at metaphase centrosomes, which became fragmented. This was phenocopied by treatment with Aurora A kinase inhibitor, suggesting a centrosomal role for the Aurora A-dependent complex of clathrin, ch-TOG, and TACC3 (transforming acidic coiled-coil protein 3). Clathrin inactivation in S phase also reduced total cellular levels of ch-TOG by metaphase. Live-cell imaging showed dynamic clathrin recruitment during centrosome maturation. Therefore, we propose that clathrin promotes centrosome maturation by stabilizing the microtubule-binding protein ch-TOG, defining a novel role for the clathrin-ch-TOG-TACC3 complex." @default.
- W2011427175 created "2016-06-24" @default.
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- W2011427175 creator A5087842003 @default.
- W2011427175 date "2012-08-13" @default.
- W2011427175 modified "2023-10-01" @default.
- W2011427175 title "Clathrin promotes centrosome integrity in early mitosis through stabilization of centrosomal ch-TOG" @default.
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- W2011427175 doi "https://doi.org/10.1083/jcb.201205116" @default.
- W2011427175 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3514040" @default.
- W2011427175 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22891263" @default.
- W2011427175 hasPublicationYear "2012" @default.
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