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.

Publication

Defining the human deubiquitinating enzyme interaction landscape.

Sowa ME, Bennett EJ, Gygi SP, Harper JW

Deubiquitinating enzymes (Dubs) function to remove covalently attached ubiquitin from proteins, thereby controlling substrate activity and/or abundance. For most Dubs, their functions, targets, and regulation are poorly understood. To systematically investigate Dub function, we initiated a global proteomic analysis of Dubs and their associated protein complexes. This was accomplished through the development of a software platform called CompPASS, which uses ... [more]

Cell Jul. 23, 2009; 138(2);389-403 [Pubmed: 19615732]

Quantitative Score

  • 1.81 [Confidence Score]

Throughput

  • High Throughput

Ontology Terms

  • hek-293 cell (BTO:0000007) [epithelial cell (BTO:0000414)]

Additional Notes

  • #LPPI
  • Likely protein-protein interaction
  • exogenous expression of bait

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
USP28 SUMO2
Co-crystal Structure
Co-crystal Structure

Interaction directly demonstrated at the atomic level by X-ray crystallography. Also used for NMR or Electron Microscopy (EM) structures. If there is no obvious bait-hit directionality to the interaction involving 3 or more proteins, then the co-crystallized proteins should be listed as a complex.

Low-BioGRID
1508195
USP28 SUMO2
Reconstituted Complex
Reconstituted Complex

An interaction is inferred between proteins in vitro. This can include proteins in recombinant form or proteins isolated directly from cells with recombinant or purified bait. For example, GST pull-down assays where a GST-tagged protein is first isolated and then used to fish interactors from cell lysates are considered reconstituted complexes (e.g. PUBMED: 14657240, Fig. 4A or PUBMED: 14761940, Fig. 5). This can also include gel-shifts, surface plasmon resonance, isothermal titration calorimetry (ITC) and bio-layer interferometry (BLI) experiments. The bait-hit directionality may not be clear for 2 interacting proteins. In these cases the directionality is up to the discretion of the curator.

Low-BioGRID
-

Curated By

  • BioGRID