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

Construction of a proximity labeling vector to identify protein-protein interactions in human stem cells.

Gomes-Junior R, Moreira CMDN, Dallagiovanna B

Identification of protein-protein interactions is essential for understanding protein functions in biological processes. While immunoprecipitation has traditionally been used to isolate proteins and their partners, it faces limitations in capturing transient interactions. Proximity labeling, particularly with the biotin ligase TurboID, addresses this challenge by enabling rapid and efficient identification of interacting proteins in vivo. Human induced pluripotent stem cells are ... [more]

PLoS One May. 30, 2025; 20(5);e0324779 [Pubmed: 40445938]

Throughput

  • High Throughput

Additional Notes

  • A cutoff of p-value lesser of equal to 0.05 and a Log2deltaLFQ difference greater or equal to 2 was used to define true interactions
  • mesoderm stage

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
U2AF2 SUGP1
Affinity Capture-Luminescence
Affinity Capture-Luminescence

An interaction is inferred when a bait protein, tagged with luciferase, is enzymatically detected in immunoprecipitates of the prey protein as light emission. The prey protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag.

Low-BioGRID
-
SUGP1 U2AF2
Two-hybrid
Two-hybrid

Bait protein expressed as a DNA binding domain (DBD) fusion and prey expressed as a transcriptional activation domain (TAD) fusion and interaction measured by reporter gene activation.

High-BioGRID
-
U2AF2 SUGP1
Two-hybrid
Two-hybrid

Bait protein expressed as a DNA binding domain (DBD) fusion and prey expressed as a transcriptional activation domain (TAD) fusion and interaction measured by reporter gene activation.

High-BioGRID
-
SUGP1 U2AF2
Two-hybrid
Two-hybrid

Bait protein expressed as a DNA binding domain (DBD) fusion and prey expressed as a transcriptional activation domain (TAD) fusion and interaction measured by reporter gene activation.

High-BioGRID
-

Curated By

  • BioGRID