PPP1CA
Gene Ontology Biological Process
- circadian regulation of gene expression [ISS]
- entrainment of circadian clock by photoperiod [ISS]
- negative regulation of transforming growth factor beta receptor signaling pathway [TAS]
- protein dephosphorylation [IMP, ISS]
- regulation of circadian rhythm [IMP]
- small molecule metabolic process [TAS]
- transforming growth factor beta receptor signaling pathway [TAS]
- triglyceride catabolic process [TAS]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
PHB2
Gene Ontology Biological Process
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Biochemical Activity (Dephosphorylation)
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.
Publication
A-kinase anchoring protein BIG3 coordinates oestrogen signalling in breast cancer cells.
Approximately 70% of breast cancer cells express oestrogen receptor alpha (ERα). Previous studies have shown that the Brefeldin A-inhibited guanine nucleotide-exchange protein 3-prohibitin 2 (BIG3-PHB2) complex has a crucial role in these cells. However, it remains unclear how BIG3 regulates the suppressive activity of PHB2. Here we demonstrate that BIG3 functions as an A-kinase anchoring protein that binds protein kinase ... [more]
Throughput
- Low Throughput
Additional Notes
- in vitro dephosphorylation with PP1Calpha immunoprecipitated with BIG3 as phosphatase, the catalytic subunit of PKA present as an additional component in the immunoprecipitate and phosphorylated PHB2 peptide as substrate; similar activity demonstrated using full-length PHB2 as substrate
Related interactions
| Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
|---|---|---|---|---|---|---|
| PHB2 PPP1CA | 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 | - |
Curated By
- BioGRID