PXD044732

PXD044732 is an original dataset announced via ProteomeXchange.

Title	CDK activity at the centrosome regulates the cell cycle
Description	Cyclin-dependent kinases (CDKs) complexed with cyclins drive progression through the eukaryotic cell cycle. From yeast to human cells, cyclin-CDK localises to the centrosome, but the importance of this localisation is unclear. The conserved ‘hydrophobic patch’ substrate docking site on human Cyclin B1 and on the equivalent fission yeast Cdc13 mediates their localisation to the centrosome and the spindle-pole body (SPB, yeast centrosome equivalent). A hydrophobic patch mutant (HPM) of Cdc13 cannot enter mitosis, but whether this mitotic defect is due to defective SPB localisation or defective cyclin-substrate docking is unknown. Here we show that artificially restoring Cdc13HPM SPB localisation in fission yeast partially rescues both mitosis and defective CDK substrate phosphorylation at both the SPB and within the cytoplasm. In addition, we found that an HPM of the S-phase cyclin Cig2 has defective SPB localisation but is still able to perform bulk DNA synthesis. Our results demonstrate that the hydrophobic patch mediates the SPB localisation of both S- and M-phase cyclins, and that Cdc13 SPB localisation is essential for mitotic entry and for full phosphorylation of CDK substrates, supporting the view that the centrosome plays a role as a signalling hub regulating CDK cell cycle control.
HostingRepository	PRIDE
AnnounceDate	2024-10-22
AnnouncementXML	Submission_2024-10-22_06:35:09.161.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Tania Auchynnikava
SpeciesList	scientific name: Schizosaccharomyces pombe 927; NCBI TaxID: 1264690;
ModificationList	phosphorylated residue
Instrument	Orbitrap Eclipse

Revision	Datetime	Status	ChangeLog Entry
0	2023-08-22 04:16:57	ID requested
1	2024-04-04 02:49:49	announced
⏵ 2	2024-10-22 06:35:09	announced	2024-10-22: Updated project metadata.

10.1016/J.CELREP.2024.114066;

submitter keyword: Cell Cycle, CDK, phosphrylation

Paul Nurse
contact affiliation	The Francis Crick Institute
contact email	paul.nurse@crick.ac.uk
lab head
Tania Auchynnikava
contact affiliation	The Francis Crick Institute
contact email	auchynt@crick.ac.uk
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD044732
     1. Label: PRIDE project
     2. Name: CDK activity at the centrosome regulates the cell cycle