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

Interactome analysis of Bag-1 isoforms reveals novel interaction partners in endoplasmic reticulum-associated degradation.

Can ND, Basturk E, Kizilboga T, Akcay IM, Dingiloglu B, Tatli O, Acar S, Ozfiliz Kilbas P, Elbeyli E, Muratcioglu S, Jannuzzi AT, Gursoy A, Keskin O, Doganay HL, Karademir Yilmaz B, Dinler Doganay G

Bag-1 is a multifunctional protein that regulates Hsp70 chaperone activity, apoptosis, and proliferation. The three major Bag-1 isoforms have different subcellular localizations and partly non-overlapping functions. To identify the detailed interaction network of each isoform, we utilized mass spectrometry-based proteomics and found that interactomes of Bag-1 isoforms contained many common proteins, with variations in their abundances. Bag-1 interactomes were enriched ... [more]

PLoS One Aug. 25, 2021; 16(8);e0256640 [Pubmed: 34428256]

Quantitative Score

1.79 [FoldChange]

Throughput

High Throughput

Additional Notes

Affinity Capture-MS was carried out to identify high confidence protein-protein interactors with a >1.2 fold enrichment over control (Fold enrichment reported here)
Bag-1S Fold Change: 1.66
Bag-1S Fold Change: 1.79
Bag-1S Fold Change: 2.10

Curated By

BioGRID

Interaction Summary

BAG1

Gene Ontology Biological Process

Gene Ontology Molecular Function

protein binding [IPI]receptor signaling protein activity [TAS]

Gene Ontology Cellular Component

KPNB1

Gene Ontology Biological Process

Gene Ontology Molecular Function

enzyme binding [IPI]nuclear localization sequence binding [TAS]poly(A) RNA binding [IDA]protein binding [IPI]protein domain specific binding [IPI]zinc ion binding [TAS]