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PXD013488 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleOrganising the cell cycle in the absence transcriptional control: Dynamic phosphorylation co-ordinates the Trypanosoma brucei cell cycle post-transcriptionally
DescriptionThe cell division cycle of the unicellular eukaryote Trypanosome brucei is tightly regulated despite the paucity of transcriptional control that results from the arrangement of genes in polycistronic units and lack of dynamically regulated transcription factors. To identify the contribution of dynamic phosphorylation to T. brucei cell cycle control we have combined cell cycle synchronisation by centrifugal elutriation with SILAC quantitative phosphoproteomic analysis. Cell cycle regulated changes in phosphorylation site abundance (917 sites, average 5-fold change) were more widespread and of a larger magnitude than changes in protein abundance (443 proteins, average 2-fold change) and were mostly independent of each other. Hierarchical clustering of co-regulated phosphorylation sites according to their cell cycle profile revealed a bulk increase in phosphorylation occurs across the cell cycle, with a significant enrichment of known cell cycle regulators and RNA binding proteins (RBPs) within the largest clusters. Cell cycle regulated changes in essential cell cycle kinases is temporally co-ordinated with differential phosphorylation of components of the kinetochore and eukaryotic initiation factors, along with many RBPs not previously linked to the cell cycle such as eight PSP1-C terminal domain containing proteins. The temporal profiles demonstrate the importance of dynamic phosphorylation in co-ordinating progression through the cell cycle, and provides evidence that RBPs play a central role in post-transcriptional gene regulation of the T. brucei cell cycle.
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterMichael Urbaniak
SpeciesList scientific name: Trypanosoma brucei; NCBI TaxID: 5691;
ModificationListphosphorylated residue; acetylated residue; monohydroxylated residue; iodoacetamide derivatized residue
InstrumentLTQ Orbitrap Velos
Dataset History
RevisionDatetimeStatusChangeLog Entry
02019-04-12 07:36:11ID requested
12019-06-13 00:54:18announced
22019-12-13 04:05:59announced2019-12-13: Updated publication reference for PubMed record(s): 31830130.
Publication List
Benz C, Urbaniak MD, Organising the cell cycle in the absence of transcriptional control: Dynamic phosphorylation co-ordinates the Trypanosoma brucei cell cycle post-transcriptionally. PLoS Pathog, 15(12):e1008129(2019) [pubmed]
Keyword List
submitter keyword: Cell cycle, Trypanosoma brucei, Phosphoproteomics, SILAC
Contact List
Michael Urbaniak
contact affiliationBiomedical & Life Sciences, Lancaster University UK
contact emailm.urbaniak@lancaster.ac.uk
lab head
Michael Urbaniak
contact affiliationLancaster University
contact emailm.urbaniak@lancaster.ac.uk
dataset submitter
Full Dataset Link List
Dataset FTP location
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