PXD064018
PXD064018 is an original dataset announced via ProteomeXchange.
Dataset Summary
Title | Combination of in vivo and in vitro phosphoproteomics determines the PP2A target repertoire on proteome scale |
Description | Dynamics of protein phosphorylation are regulated by the interplay of protein kinases and phosphatases. Current mass spectrometry-based phosphoproteomic approaches are extremely powerful in identifying and quantifying tens of thousands of different phosphorylation events in single biological samples. However, whereas the mapping of phosphorylation events has been successfully automated supporting high sample throughput, the characterization of responsible kinases and phosphatases still largely depends on laborious protein biochemical assays. To show direct (de)phosphorylation events in vitro kinase or phosphatase assays using single substrates or peptide arrays are still the methods of choice. Here we describe the development of an in vitro phosphatase assay using whole proteome under native conditions as input. We employ this approach to study the PP1 and PP2A target repertoire, characterizing thousands of potential target sites. Focusing on PPP2R5E/B56-containing complexes, we combine in vitro with in vivo phosphoproteomics to characterize bona fide target sites, which highlight PP2A`s role in regulating stress granule assembly. |
HostingRepository | PanoramaPublic |
AnnounceDate | 2025-05-16 |
AnnouncementXML | Submission_2025-05-16_09:38:14.967.xml |
DigitalObjectIdentifier | |
ReviewLevel | Non peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | supported by repository but incomplete data and/or metadata |
PrimarySubmitter | Melanie Brunner |
SpeciesList | scientific name: Homo sapiens; NCBI TaxID: 9606; |
ModificationList | Phospho |
Instrument | Q Exactive HF-X |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
---|---|---|---|
0 | 2025-05-16 09:25:57 | ID requested | |
⏵ 1 | 2025-05-16 09:38:15 | announced |
Publication List
Dataset with its publication pending |
Keyword List
submitter keyword: Phosphatase, PRM, OBIPhA |
Contact List
Joern Dengjel | |
---|---|
contact affiliation | University of Fribourg |
contact email | joern.dengjel@unifr.ch |
lab head | |
Melanie Brunner | |
contact affiliation | University of Fribourg |
contact email | melanie.brunner@unifr.ch |
dataset submitter |
Full Dataset Link List
Panorama Public dataset URI |