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

The ubiquitin-dependent ATPase p97 removes cytotoxic trapped PARP1 from chromatin.

Krastev DB, Li S, Sun Y, Wicks AJ, Hoslett G, Weekes D, Badder LM, Knight EG, Marlow R, Pardo MC, Yu L, Talele TT, Bartek J, Choudhary JS, Pommier Y, Pettitt SJ, Tutt ANJ, Ramadan K, Lord CJ

Poly (ADP-ribose) polymerase (PARP) inhibitors elicit antitumour activity in homologous recombination-defective cancers by trapping PARP1 in a chromatin-bound state. How cells process trapped PARP1 remains unclear. Using wild-type and a trapping-deficient PARP1 mutant combined with rapid immunoprecipitation mass spectrometry of endogenous proteins and Apex2 proximity labelling, we delineated mass spectrometry-based interactomes of trapped and non-trapped PARP1. These analyses identified an ... [more]

Nat Cell Biol Dec. 01, 2021; 24(1);62-73 [Pubmed: 35013556]

Throughput

  • High Throughput

Additional Notes

  • Affinity Capture-MS was carried out to identify high confidence protein-protein interactors.

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
PARP1 MTA2
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
3362474
MTA2 PARP1
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.

High-BioGRID
3433756
PARP1 MTA2
Proximity Label-MS
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.

High7.73BioGRID
2998783

Curated By

  • BioGRID