PXD014930 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | working day and night: plastid casein kinase 2 catalyses phosphorylation of target proteins with diverse functions in light and dark-adapted plastids |
Description | Casein kinase 2 is a ubiquitous protein kinase that has puzzled researchers for several decades because of its pleiotropic activity. Here we set out to identify the _in vivo_ targets of plastid casein kinase 2 (pCK2) in _Arabidopsis thaliana_. Survey phosphoproteome analyses were combined with targeted analyses with wildtype and _pck2_ knockdown mutants to identify potential pCK2 targets by their decreased phosphorylation state in the mutant. To validate potential substrates, we complemented the _pck2_ knockdown line with TAP-tagged pCK2 and found it to restore growth parameters as well as many -but not all- of the putative pCK2-dependent phosphorylation events. We further performed a targeted analysis at the end-of-night to increase the specificity of target protein identification. This analysis confirmed light-independent phosphorylation of some pCK2 target proteins. Based on the aforementioned data, we define a set of _in vivo_ pCK2-targets that span different chloroplast functions such as metabolism, transcription, translation and photosynthesis. The pleiotropy of CK2 functions is also manifested by altered state transition kinetics during short-term-acclimation and significant alterations in the mutant metabolism supporting its crosstalk with photosynthetic regulation. Thus, our data expand our understanding on chloroplast phosphorylation networks and provide novel insights into kinase crosstalk in the biogenic regulation of chloroplast functions. |
HostingRepository | PRIDE |
AnnounceDate | 2021-07-20 |
AnnouncementXML | Submission_2021-07-19_21:42:23.100.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Sacha Baginsky |
SpeciesList | scientific name: Arabidopsis thaliana (Mouse-ear cress); NCBI TaxID: 3702; |
ModificationList | phosphorylated residue; monohydroxylated residue; iodoacetamide derivatized residue |
Instrument | LTQ Orbitrap Velos |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2019-08-06 07:14:21 | ID requested | |
1 | 2021-07-19 04:49:05 | announced | |
⏵ 2 | 2021-07-19 21:42:24 | announced | 2021-07-20: Updated project metadata. |
Publication List
10.1111/TPJ.14944; |
R, ö, diger A, Galonska J, Bergner E, Agne B, Helm S, Alseekh S, Fernie AR, Thieme D, Hoehenwarter W, Hause G, Pfannschmidt T, Baginsky S, Working day and night: plastid casein kinase 2 catalyses phosphorylation of proteins with diverse functions in light- and dark-adapted plastids. Plant J, 104(2):546-558(2020) [pubmed] |
Keyword List
submitter keyword: acclimation,chloroplast, photosynthesis, kinases, phosphorylation targets |
Contact List
Prof. Dr. Sacha Baginsky |
contact affiliation | Ruhr-Universität Bochum Fakultät für Biologie und Biotechnologie Biochemie der Pflanzen Universitätsstr. 150 Gebäude ND 3/126 44780 Bochum |
contact email | pflanzen@biochemtech.uni-halle.de |
lab head | |
Sacha Baginsky |
contact affiliation | Institut fuer Biochemie und Biotechnologie |
contact email | pflanzen@biochemtech.uni-halle.de |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD014930
- Label: PRIDE project
- Name: working day and night: plastid casein kinase 2 catalyses phosphorylation of target proteins with diverse functions in light and dark-adapted plastids