BAIT

PSMA7

C6, HSPC, RC6-1, XAPC7, RP5-1005F21.4
proteasome (prosome, macropain) subunit, alpha type, 7
GO Process (21)
GO Function (2)
GO Component (6)
Homo sapiens
PREY

BRCA1

BRCAI, BRCC1, BROVCA1, FANCS, IRIS, PNCA4, PPP1R53, PSCP, RNF53
breast cancer 1, early onset
GO Process (44)
GO Function (10)
GO Component (11)

Gene Ontology Biological Process

Homo sapiens

Far Western

An interaction is detected between a protein immobilized on a membrane and a purified protein probe.

Publication

c-Abl regulates proteasome abundance by controlling the ubiquitin-proteasomal degradation of PSMA7 subunit.

Li D, Dong Q, Tao Q, Gu J, Cui Y, Jiang X, Yuan J, Li W, Xu R, Jin Y, Li P, Weaver DT, Ma Q, Liu X, Cao C

The ubiquitin-proteasome system is a vital proteolytic pathway required for cell homeostasis. However, the turnover mechanism of the proteasome subunit itself is still not understood. Here, we show that the 20S proteasome subunit PSMA7 is subjected to ubiquitination and proteasomal degradation, which was suppressed by PSMA7 phosphorylation at Y106 mediated by the nonreceptor tyrosine kinases c-Abl/Arg. BRCA1 specifically functions as ... [more]

Cell Rep Feb. 03, 2015; 10(4);484-96 [Pubmed: 25620702]

Throughput

  • Low Throughput

Additional Notes

  • Figure 4

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
BRCA1 PSMA7
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
-
PSMA7 BRCA1
Affinity Capture-Western
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.

Low-BioGRID
1508506
BRCA1 PSMA7
Biochemical Activity
Biochemical Activity

An interaction is inferred from the biochemical effect of one protein upon another, for example, GTP-GDP exchange activity or phosphorylation of a substrate by a kinase. The bait protein executes the activity on the substrate hit protein. A Modification value is recorded for interactions of this type with the possible values Phosphorylation, Ubiquitination, Sumoylation, Dephosphorylation, Methylation, Prenylation, Acetylation, Deubiquitination, Proteolytic Processing, Glucosylation, Nedd(Rub1)ylation, Deacetylation, No Modification, Demethylation.

Low-BioGRID
1508508

Curated By

  • BioGRID