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
SAR1A SEC24A
Positive Genetic
Positive Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a less severe fitness defect than expected under a given condition. This term is reserved for high or low throughput studies with scores.

High8.452BioGRID
2539790

Curated By

  • BioGRID