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• W2893877526 abstract "Cytoplasmic dynein is a minus-end-directed microtubule-based motor that acts at diverse subcellular sites. During mitosis, dynein localizes simultaneously to the mitotic spindle, spindle poles, kinetochores and the cell cortex. However, it is unclear what controls the relative targeting of dynein to these locations. As dynein is heavily post-translationally modified, we sought to test a role for these modifications in regulating dynein localization. We find that dynein rapidly and strongly accumulates at mitotic spindle poles following treatment with NSC697923, a small molecule that inhibits the ubiquitin E2 enzyme, Ubc13, or treatment with PYR-41, a ubiquitin E1 inhibitor. Subsets of dynein regulators such as Lis1, ZW10 and Spindly accumulate at the spindle poles, whereas others do not, suggesting that NSC697923 differentially affects specific dynein populations. We additionally find that dynein relocalization induced by NSC697923 or PYR-41 can be suppressed by simultaneous treatment with the non-selective deubiquitinase inhibitor, PR-619. However, we did not observe altered dynein localization following treatment with the selective E1 inhibitor, TAK-243. Although it is possible that off-target effects of NSC697923 and PYR-41 are responsible for the observed changes in dynein localization, the rapid relocalization upon drug treatment highlights the highly dynamic nature of dynein regulation during mitosis." @default.
• W2893877526 created "2018-10-05" @default.
• W2893877526 creator A5063914557 @default.
• W2893877526 creator A5064387359 @default.
• W2893877526 date "2018-09-01" @default.
• W2893877526 modified "2023-10-18" @default.
• W2893877526 title "Dynamic regulation of dynein localization revealed by small molecule inhibitors of ubiquitination enzymes" @default.
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• W2893877526 doi "https://doi.org/10.1098/rsob.180095" @default.
• W2893877526 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6170511" @default.
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• W2893877526 hasPublicationYear "2018" @default.
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