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PXD072505-1

PXD072505 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleNuclear polysaccharides maintain H3K9me3-heterochromatin and genomic stability
DescriptionPolysaccharides are traditionally confined to the cell surface and extracellular space, whereas their nuclear roles remain unclear. Here, we show that N-glycans are present in the nucleus and modify inner nuclear membrane (INM) proteins across multiple cell types. Disruption of INM protein N-glycosylation reduces H3K9me3 in lamina-associated domains and induces genomic instability by impairing SETDB1 association with the INM. Notably, canonical ER N-glycan biosynthetic machinery contributes to INM protein N-glycosylation. Our findings reveal a previously unrecognized nuclear function of polysaccharides.
HostingRepositoryiProX
AnnounceDate2025-12-30
AnnouncementXMLSubmission_2026-03-10_17:23:24.646.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterZhida Zhang
SpeciesList scientific name: Mus musculus; NCBI TaxID: 10090;
ModificationListNo PTMs are included in the dataset
InstrumentOrbitrap Fusion Lumos
Dataset History
RevisionDatetimeStatusChangeLog Entry
02025-12-29 18:12:35ID requested
12026-03-10 17:23:25announced
Publication List
Dataset with its publication pending
Keyword List
submitter keyword: Glycoproteomics, N-glycosylation of INM proteins
Contact List
Shisheng Sun
contact affiliationNorthwest University
contact emailsuns@nwu.edu.cn
lab head
Zhida Zhang
contact affiliationNorthwest University
contact emailzhida0717@163.com
dataset submitter
Full Dataset Link List
iProX dataset URI