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- Q17008587 subject Q15256024.
- Q17008587 subject Q9632647.
- Q17008587 abstract "DCTN6 is the gene of p27 subunit of the dynactin complex, which is the essential component for microtubule-based cytoplasmic dynein motor activity in transport of variety of intracellular cargoes and organelle. It is first identified and cloned as a subunit of the "pointed-end complex" of dynactin through biochemical purification. Dynactin p27 forms a hetero-dimer with the other dynactin pointed-end complex subunit p25/DCTN5 in 1:1 ratio, and it is essential for p25 stability since they are co-knockdown by p27 RNAi. However, both p27 and p25 are not required for 19S dynactin complex integrity verified by velocity sedimentation. p27/DCTN6 and other dynactin pointed-end complex subunits (Arp11/Actr10, p62/DCTN4, and p25/DCTN5) have been suggested to be involved in dynactin binding to specific intracellular cargoes. Co-depletion of dynactin p27 and p25 by p27 RNAi affects dynactin binding to endomembrane, and early and recycling endosome movements are impaired, suggesting that p27/p25 form a selective endomembrane cargo-targeting module.In mitosis, unlike dynactin or dynein perturbation that causes mitotic spindle disarrangement and mitotic arrest, dynactin p27/p25 depletion are does not affect mitotic spindle formation, pole focusing or dynein/dynactin targeting to kinetochores. However, dynactin p27/p25 are required for normal chromosome alignment, kinetochore-microtubule interaction, and proper timing of anaphase onset. Dynactin p27 C-terminal T186 residue is phosphorylated by cyclin-dependent kinase 1 (Cdk1) in mitosis and helps target polo-like kinase 1 (Plk1) to kinetochores during prometaphase. This activity facilitates phosphorylation of important downstream kinetochore targets (such as tension-sensing 3F3/2 phospho-epitope) of Plk1, which is important for recruitment of spindle assembly checkpoint proteins such as Mad1 and proper kinetochore-microtubule attachment. X-ray crystal structure revealed that dynactin p27 forms an unusual left handed β-helix (LβH) domain, and its phosphorylation site T186 is in C-terminal disordered segment.".
- Q17008587 wikiPageWikiLink Q133226.
- Q17008587 wikiPageWikiLink Q14763006.
- Q17008587 wikiPageWikiLink Q15256024.
- Q17008587 wikiPageWikiLink Q15325366.
- Q17008587 wikiPageWikiLink Q18030593.
- Q17008587 wikiPageWikiLink Q18040058.
- Q17008587 wikiPageWikiLink Q189933.
- Q17008587 wikiPageWikiLink Q3497839.
- Q17008587 wikiPageWikiLink Q37748.
- Q17008587 wikiPageWikiLink Q410134.
- Q17008587 wikiPageWikiLink Q5204554.
- Q17008587 wikiPageWikiLink Q824237.
- Q17008587 wikiPageWikiLink Q908912.
- Q17008587 wikiPageWikiLink Q918594.
- Q17008587 wikiPageWikiLink Q9632647.
- Q17008587 comment "DCTN6 is the gene of p27 subunit of the dynactin complex, which is the essential component for microtubule-based cytoplasmic dynein motor activity in transport of variety of intracellular cargoes and organelle. It is first identified and cloned as a subunit of the "pointed-end complex" of dynactin through biochemical purification.".
- Q17008587 label "DCTN6".