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Mass spectrometry-based proteomics has become an integral approach for characterising ubiquitin chain-linkage compositions and architectures. In this study, we optimised sample preparation and chromatographic separation of Ubiquitin peptides for Absolute Quantification by Parallel Reaction Monitorin...
ORGANISM(S): Mus musculus (Mouse) 
2020-09-28 | PXD017754 | Pride
We identified VPS34 as the direct substrate of UBE3C E3 ligase in vivo and in vitro. Next, to analyze the ubiquitin chain on VPS34 that was assembled by UBE3C in vitro.
ORGANISM(S): Homo sapiens (Human) 
2021-02-17 | PXD023986 | Pride
Ubiquitin chain editing promotes p97/VCP dependent removal of RPA from DNA
This experiment aimed to characterise ubiquitin chain linkage preferences generated and autoubiquitination sistes during ZNFX1 E3 reactions using diGly remnant mass spectrometry. GlyGly-modified lysine residues were identified as a qualitative proxy for ubiquitin linkage types. Spectral counts of ra...
ORGANISM(S): Homo sapiens (Human) 
2026-05-22 | PXD073484 | Pride
Linkage-specific ubiquitin (Ub) chains dictate the functional outcome of many critical Ub-dependent signaling processes. However, the functions and targets of several poly-Ub topologies remain poorly understood due to a lack of tools for their specific detection and manipulation. To remedy this know...
ORGANISM(S): Homo sapiens (Human) 
2025-09-18 | PXD056493 | Pride
How eukaryotic cells choose which DNA repair pathways to use is incompletely understood, yet these decisions are critical to maintain genome stability. Here, we show how error-free DNA repair is controlled by a ubiquitin-dependent mechanism. Central to this is a multi-component ubiquitin chain editi...
ORGANISM(S): Homo sapiens 
2026-09-16 | GSE289609 | GEO
Profiling linkage-specific ubiquitin chain functions reveals a key role of K29-linked ubiquitylation in epigenome integrity
The E3 ubiquitin ligase Ufd4/TRIP12 and the E4 enzyme Ufd2 are capable of catalyzing branched ubiquitination. Here, we employ LC-MS/MS to characterize the specific ubiquitin linkage types involved in these branched ubiquitin chains.
ORGANISM(S): Homo sapiens (Human) Saccharomyces cerevisiae (Baker's yeast) 
2025-04-10 | PXD062799 | Pride
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