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

Defining the proximal interaction networks of Arf GTPases reveals a mechanism for the regulation of PLD1 and PI4KB.

Li FL, Wu Z, Gao YQ, Bowling FZ, Franklin JM, Hu C, Suhandynata RT, Frohman MA, Airola MV, Zhou H, Guan KL

The Arf GTPase family is involved in a wide range of cellular regulation including membrane trafficking and organelle-structure assembly. Here, we have generated a proximity interaction network for the Arf family using the miniTurboID approach combined with TMT-based quantitative mass spectrometry. Our interactome confirmed known interactions and identified many novel interactors that provide leads for defining Arf pathway cell biological ... [more]

EMBO J Jul. 17, 2022; ();e110698 [Pubmed: 35844135]

Throughput

  • High Throughput

Additional Notes

  • Constitutively active mutant of GTPase fused with miniTurboID was stably expressed in HEK293A cells, followed by miniTurboID experiment and TMT-based mass spectrometry. FDR threshold of 0.05

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
COPZ1 ARF4
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.

High-BioGRID
3352269

Curated By

  • BioGRID