PXD082712

PXD082712 is an original dataset announced via ProteomeXchange.

Title	Induced degradation of Ufd1 reveals regulation of cohesin by the VCP/p97Ufd1-Npl4 complex
Description	The AAA ATPase VCP/p97 has emerged as a critical regulator of ubiquitin and chromatin-associated processes but progress in understanding has been hampered by the complexity of p97 functions and the various p97 cofactors involved. Here, we combined ubiquitin profiling with acutely induced degradation of the Ufd1 subunit of the p97 ubiquitin adapter, Ufd1-Npl4, in human cells. We identified a set of chromatin regulators, HUS1, XRCC1, MORF4L1, and the cohesin subunit RAD21 as targets of p97Ufd1-Npl4. We find that RAD21 is ubiquitylated and targeted by p97Ufd1-Npl4 specifically in S phase to remove a subpopulation of cohesin from chromatin. Acute degradation of Ufd1 in S phase, after replication licensing is completed, impedes replication and leads to replication-associated DNA damage. Our findings suggest that a fraction of cohesin rings need to be removed by p97Ufd1-Npl4 from DNA to allow unhindered replication and reveal a critical function of p97 that ensures genome stability
HostingRepository	PRIDE
AnnounceDate	2026-08-31
AnnouncementXML	Submission_2026-08-31_06:48:52.741.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Petra Beli
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: NEWT:9606;
ModificationList	ubiquitination signature dipeptidyl lysine
Instrument	Orbitrap Exploris 480

Revision	Datetime	Status	ChangeLog Entry
0	2026-08-17 10:09:41	ID requested
⏵ 1	2026-08-31 06:48:53	announced

Dataset with its publication pending

submitter keyword: DNA damage, replication, ubiquitin, VCP, cohesin

Petra Beli
contact affiliation	Institute of Molecular Biology (IMB), Ackermannweg 4, 55128 Mainz
contact email	p.beli@imb-mainz.de
lab head
Petra Beli
contact affiliation	Institute of Molecular Biology (IMB), Mainz, Germany
contact email	p.beli@imb-mainz.de
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD082712
     1. Label: PRIDE project
     2. Name: Induced degradation of Ufd1 reveals regulation of cohesin by the VCP/p97Ufd1-Npl4 complex