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

Interferon-induced PARP14-mediated ADP-ribosylation in p62 bodies requires the ubiquitin-proteasome system.

Raja R, Biswas B, Abraham R, Wang Y, Chang CY, Hendriks IA, Buch-Larsen SC, Liu H, Yang X, Wang C, Vu H, Hamacher-Brady A, Cai D, Leung AKL

Biomolecular condensates are cellular compartments without enveloping membranes, enabling them to dynamically adjust their composition in response to environmental changes through post-translational modifications. Recent work has revealed that interferon-induced ADP-ribosylation (ADPr), which can be reversed by a SARS-CoV-2-encoded hydrolase, is enriched within a condensate. However, the identity of the condensate and the responsible host ADP-ribosyltransferase remain elusive. Here, we demonstrate ... [more]

EMBO J May. 01, 2025; 44(10);2741-2773 [Pubmed: 40195501]

Throughput

  • High Throughput

Additional Notes

  • Affinity capture MS was carried out to identify high confidence protein interactors with or without IFN-gamma treatment with enrichment over the IgG control (FDR < 0.1%). This hit was identified in the following condition(s):
  • IFN-gamma treated samples
  • untreated samples

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
SQSTM1 STXBP1
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