PXD033696 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | MeCP2 heterochromatin organization is modulated by arginine methylation and serine phosphorylation |
Description | Rett syndrome is a human intellectual disability disorder that is associated with mutations in the X-linked MECP2 gene. The
epigenetic reader MeCP2 binds to methylated cytosines on the DNA and regulates chromatin organization. We have shown
previously that MECP2 Rett syndrome missense mutations are impaired in chromatin binding and heterochromatin
reorganization. Here, we performed a proteomics analysis of post-translational modifications of MeCP2 isolated from adult mouse
brain. We show that MeCP2 carries various post-translational modifications, among them phosphorylation on S80 and S421, which
lead to minor changes in either heterochromatin binding kinetics or clustering. We found that MeCP2 is (di)methylated on several
arginines and that this modification alters heterochromatin organization. Interestingly, we identified the Rett syndrome mutation
site R106 as a dimethylation site. In addition, co-expression of protein arginine methyltransferases 1 and 6 lead to a decrease of
heterochromatin clustering. Altogether, we identified and validated novel modifications of MeCP2 in the brain and show that these
can modulate its ability to bind as well as reorganize heterochromatin, which may play a role in the pathology of Rett syndrome. |
HostingRepository | PRIDE |
AnnounceDate | 2023-11-14 |
AnnouncementXML | Submission_2023-11-14_07:23:31.818.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | M. Cristina Cardoso |
SpeciesList | scientific name: Mus musculus (Mouse); NCBI TaxID: 10090; |
ModificationList | monomethylated residue; phosphorylated residue; acetylated residue; monohydroxylated residue |
Instrument | LTQ Orbitrap Elite |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2022-05-05 01:11:06 | ID requested | |
1 | 2022-10-14 21:53:01 | announced | |
⏵ 2 | 2023-11-14 07:23:32 | announced | 2023-11-14: Updated project metadata. |
Publication List
Schmidt A, Frei J, Poetsch A, Chittka A, Zhang H, A, ß, mann C, Lehmkuhl A, Bauer UM, Nuber UA, Cardoso MC, MeCP2 heterochromatin organization is modulated by arginine methylation and serine phosphorylation. Front Cell Dev Biol, 10():941493(2022) [pubmed] |
Keyword List
submitter keyword: LC-MS/MS, brain, mouse |
Contact List
M. Cristina Cardoso |
contact affiliation | Cell Biology and Epigenetics, Department of Biology, Technical University of Darmstadt, Darmstadt, Germany |
contact email | cardoso@bio.tu-darmstadt.de |
lab head | |
M. Cristina Cardoso |
contact affiliation | Cell Biology and Epigenetics, Department of Biology, Technical University of Darmstadt, Darmstadt, Germany |
contact email | cardoso-lab@bio.tu-darmstadt.de |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD033696
- Label: PRIDE project
- Name: MeCP2 heterochromatin organization is modulated by arginine methylation and serine phosphorylation