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

A Rab1 interactome illuminates a dual role in autophagy and membrane trafficking.

van Vliet AR, Gillingham AK, Morgan TE, Ohashi Y, Smith TS, Abid Ali F, Munro S

The small GTPase Rab1 is found in all eukaryotes and acts in both ER-to-Golgi transport and autophagy. Several Rab1 effectors and regulators have been identified, but the mechanisms by which Rab1 orchestrates these distinct processes remain incompletely understood. We apply MitoID, a proximity biotinylation approach, to expand the interactome of human Rab1A and Rab1B. We identify new interactors among known ... [more]

J Cell Biol Mar. 02, 2026; 225(3); [Pubmed: 41493270]

Throughput

  • High Throughput

Additional Notes

  • GDP-bound form (S22N mutant)
  • MitoID

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
CANX RAB1B
Co-fractionation
Co-fractionation

Interaction inferred from the presence of two or more protein subunits in a partially purified protein preparation. If co-fractionation is demonstrated between 3 or more proteins, then add them as a complex.

High0.1365BioGRID
1268508

Curated By

  • BioGRID