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PXD002560

PXD002560 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleSystems level analysis of histone H3 post-translational modifications reveals features of PTM crosstalk in chromatin regulation
DescriptionChromatin structure and function is maintained by dynamic protein-protein and protein-nucleic acid interactions. Histones are a family of proteins that are abundant chromatin constituents and that carry numerous post-translational modifications (PTMs). Histone PTMs mediate a variety of biological activities, including recruitment of enzymatic readers, writers and erasers that modulate protein activities, DNA replication, transcription and repair. Individual histone molecules contain multiple co-existing PTMs some of which exhibit crosstalk, i.e. coordinated or mutually exclusive activities. We here present an integrated experimental and computational approach for systems level molecular characterization of PTMs and PTM crosstalk. Using wildtype and engineered mouse embryonic stem cells with perturbations in the Polycomb Repressive Complex 1 (PRC1, suz12-/-), PRC2 (Ring1A/b-/-) and DNA methyltransferases (Dnmt1/3a/3b-/-) we performed comprehensive PTM analysis of histone H3 tails. We identified unique histone H3 PTM features of each of the four cell lines and we detected common combinatorial PTM features across cell lines. Using quantitative middle-down proteomics combined with probabilistic and statistical data analysis we extracted histone H3 PTM profiles for all four mESC systems. PTM crosstalk emerged as mutually exclusive histone PTMs or coordinately regulated PTMs independent of histone peptide abundance in the four model systems. We detected positive crosstalk between adjacent mono-methylated marks but strong negative crosstalk among most of the seven characterized di- and tri-methylations on lysines. We report novel features of PTM interplay involving hitherto poorly characterized arginine methylation and lysine methylation sites in histone H3, including H3R2me, H3R8me and H3K37me, which exhibited specific PTM codes suggesting a particular role in chromatin. All histone H3 PTM data is available in our publicly available CrossTalkDB repository at http://crosstalkdb.bmb.sdu.dk
HostingRepositoryPRIDE
AnnounceDate2016-07-06
AnnouncementXMLSubmission_2016-07-06_04:13:21.xml
DigitalObjectIdentifierhttps://dx.doi.org/10.6019/PXD002560
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportSupported dataset by repository
PrimarySubmitterSimone Sidoli
SpeciesList scientific name: Mus musculus (Mouse); NCBI TaxID: 10090;
ModificationListN6: N6-dimethyl-L-lysine; N6: N6; acetylated residue; monomethylated residue; symmetric dimethyl-L-arginine
InstrumentLTQ Orbitrap Velos
Dataset History
RevisionDatetimeStatusChangeLog Entry
02015-07-20 01:51:25ID requested
12016-06-16 06:18:09announced
22016-07-06 04:13:22announcedUpdated project metadata.
Publication List
Schw, รค, mmle V, Sidoli S, Ruminowicz C, Wu X, Lee CF, Helin K, Jensen ON, Systems Level Analysis of Histone H3 Post-translational Modifications (PTMs) Reveals Features of PTM Crosstalk in Chromatin Regulation. Mol Cell Proteomics, 15(8):2715-29(2016) [pubmed]
Keyword List
curator keyword: Biological
submitter keyword: post-translational modification
crosstalk
histone
mass spectrometry
proteomics
Contact List
Ole N. Jensen
contact affiliationCentre for Epigenetics and Department of Biochemistry and Molecular Biology, University of Southern Denmark Campusvej 55 DK-5230 Odense M, Denmark
contact emailjenseno@bmb.sdu.dk
lab head
Simone Sidoli
contact affiliationUniversity of Pennsylvania
contact emailsimone.sidoli@gmail.com
dataset submitter
Full Dataset Link List
Dataset FTP location
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