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Reference - PMID:11777938 - Polo boxes and Cut23 (Apc8) mediate an interaction between polo kinase and the anaphase-promoting complex for fission yeast mitosis.

Reference summary

PubMed ID
PMID:11777938
Title
Polo boxes and Cut23 (Apc8) mediate an interaction between polo kinase and the anaphase-promoting complex for fission yeast mitosis.
Authors
May KM, Reynolds N, Cullen CF, Yanagida M, Ohkura H
Citation
J Cell Biol 2002 Jan 07;156(1):23-8
Publication year
2002
Abstract
The fission yeast plo1(+) gene encodes a polo-like kinase, a member of a conserved family of kinases which play multiple roles during the cell cycle. We show that Plo1 kinase physically interacts with the anaphase-promoting complex (APC)/cyclosome through the noncatalytic domain of Plo1 and the tetratricopeptide repeat domain of the subunit, Cut23. A new cut23 mutation, which specifically disrupts the interaction with Plo1, results in a metaphase arrest. This arrest can be rescued by high expression of Plo1 kinase. We suggest that this physical interaction is crucial for mitotic progression by targeting polo kinase activity toward the APC.

Annotation

GO biological process

GO:0045842 - positive regulation of mitotic metaphase/anaphase transition

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GO molecular function

GO:0005515 - protein binding

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Multi-locus phenotype

FYPO:0000411 - normal mitotic cell cycle

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Single locus phenotype

FYPO:0000620 - abnormal cell cycle arrest in mitotic metaphase

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FYPO:0003593 - abolished anaphase-promoting complex-dependent protein catabolic process

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FYPO:0001946 - abolished mitotic sister chromatid separation

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FYPO:0000705 - abolished protein-protein interaction

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FYPO:0001645 - decreased protein-protein interaction

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FYPO:0005321 - inviable elongated mononucleate aseptate cell with cell cycle arrest in mitotic metaphase

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FYPO:0005322 - normal anaphase-promoting complex assembly

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