Proximity Label-MS

An interaction is inferred when a bait-enzyme fusion protein selectively modifies a vicinal protein with a diffusible reactive product, followed by affinity capture of the modified protein and identification by mass spectrometric methods.

Publication

Some aspects of the life of SARS-CoV-2 ORF3a protein in mammalian cells.

Jiao S, Miranda P, Li Y, Maric D, Holmgren M

The accessory protein ORF3a, from SARS-CoV-2, plays a critical role in viral infection and pathogenesis. Here, we characterized ORF3a assembly, ion channel activity, subcellular localization, and interactome. At the plasma membrane, ORF3a exists mostly as monomers and dimers, which do not alter the native cell membrane conductance, suggesting that ORF3a does not function as a viroporin at the cell surface. ... [more]

Heliyon Aug. 01, 2023; 9(8);e18754 [Pubmed: 37609425]

Throughput

  • High Throughput

Additional Notes

  • Proximity label MS was carried out to identify high confidence protein interactors with a p-value < 0.05

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
ORF3A BAG5
Affinity Capture-MS
Affinity Capture-MS

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods.

High6.5308BioGRID
2755816

Curated By

  • BioGRID