BAIT

ESR1

ER, ESR, ESRA, ESTRR, Era, NR3A1, RP1-130E4.1
estrogen receptor 1
GO Process (22)
GO Function (16)
GO Component (6)
Homo sapiens
PREY

HSPB1

CMT2F, HEL-S-102, HMN2B, HS.76067, HSP27, HSP28, Hsp25, SRP27
heat shock 27kDa protein 1
GO Process (21)
GO Function (7)
GO Component (8)
Homo sapiens

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

Proteomic identification of Profilin1 as a corepressor of estrogen receptor alpha in MCF7 breast cancer cells.

Kanaujiya JK, Lochab S, Kapoor I, Pal P, Datta D, Bhatt ML, Sanyal S, Behre G, Trivedi AK

Nuclear receptor coregulators play an important role in the transcriptional regulation of nuclear receptors. In the present study, we aimed to identify estrogen receptor α (ERα) interacting proteins in Tamoxifen treated MCF7 cells. Using in vitro GST-pull down assay with ERα ligand-binding domain (ERα-LBD) and MS-based proteomics approach we identified Profilin1 as a novel ERα interacting protein. Profilin1 contains I/LXX/L/H/I ... [more]

Proteomics Jul. 01, 2013; 13(14);2100-12 [Pubmed: 23576398]

Throughput

  • Low Throughput

Ontology Terms

  • mcf-7 cell (BTO:0000093) [tamoxifen (CHEBI:41774)|breast adenocarcinoma (DOID:3458)]

Additional Notes

  • exogenous expression of bait; ligand-binding domain of ESR1 fused to GFP

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
ESR1 HSPB1
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.

High-BioGRID
-

Curated By

  • BioGRID