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To identify which E3 ligases ubiquitinate PD-L1, we overexpressed PD-L1-Flag in HEK293 cells and used anti-Flag magnetic beads to pull down PD-L1 from cell lysates. The interacting proteins were then analyzed by mass spectrometry, revealing that three E3 ligases interact with PD-L1.
ORGANISM(S): Homo sapiens (Human) 
2025-05-07 | PXD057691 | Pride
To elucidate which secreted factors in tumor tissues (TTs) are responsible for the upregulation of UBE4A as the tumor progresses, we inoculated tumors in mice and analyzed the 2- and 4-week TT fluid by mass spectrometry (MS). By combining molecular weight cut off(MWCO) and the identification of secr...
ORGANISM(S): Homo sapiens (Human) 
2025-05-07 | PXD058079 | Pride
During the formation of endosomal pathway-dependent extracellular vesicles (EVs), intraluminal vesicles in multivesicular bodies (MVBs) fuse with the plasma membrane (PM), releasing intraluminal vesicles to produce exosomes. Soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNAR...
ORGANISM(S): Homo Sapiens 
2025-12-07 | PXD071700 |
Staphylococcus aureus (S. aureus), a major cause of hospital and community-acquired pneumonia, still has a high mortality rate. Extracellular vesicles (EVs), as crucial mediators of intercellular communication, have a significant impact on infectious diseases. However, the role of EVs from alveolar ...
ORGANISM(S): Mus Musculus 
2024-05-21 | PXD052452 |
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