PREY

PSME3

HEL-S-283, Ki, PA28-gamma, PA28G, PA28gamma, REG-GAMMA
proteasome (prosome, macropain) activator subunit 3 (PA28 gamma; Ki)
GO Process (24)
GO Function (4)
GO Component (6)
Homo sapiens

Affinity Capture-Western

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 identified by Western blot with a specific polyclonal antibody or second epitope tag. This category is also used if an interacting protein is visualized directly by dye stain or radioactivity. Note that this differs from any co-purification experiment involving affinity capture in that the co-purification experiment involves at least one extra purification step to get rid of potential contaminating proteins.

Publication

The SRC-3/AIB1 coactivator is degraded in a ubiquitin- and ATP-independent manner by the REGgamma proteasome.

Li X, Lonard DM, Jung SY, Malovannaya A, Feng Q, Qin J, Tsai SY, Tsai MJ, O'Malley BW

Steroid receptor coactivator-3 (SRC-3/AIB1) is an oncogene frequently amplified and overexpressed in breast cancers. Here we report that SRC-3 interacts with REGgamma, a proteasome activator known to stimulate the trypsin-like activity of the 20S proteasome. RNAi knockdown and gain-of-function experiments suggest that REGgamma promotes SRC-3 protein degradation. Cellular levels of REGgamma expression affect estrogen-receptor target-gene expression and cell growth as ... [more]

Cell Jan. 27, 2006; 124(2);381-92 [Pubmed: 16439211]

Throughput

  • Low Throughput

Additional Notes

  • figure 1B. in vivo pull down.
  • figure 1C. in vivo pull down of exogenous SRC3 and detection of endogenous PSME3..
  • figure 1E. the HAT domain on Src3 is able to associate with Psme3.

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
PSME3 NCOA3
Affinity Capture-Luminescence
Affinity Capture-Luminescence

An interaction is inferred when a bait protein, tagged with luciferase, is enzymatically detected in immunoprecipitates of the prey protein as light emission. The prey protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag.

Low-BioGRID
658468
NCOA3 PSME3
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.

Low-BioGRID
571779
NCOA3 PSME3
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.

Low-BioGRID
658466

Curated By

  • BioGRID