PSMD2
Gene Ontology Biological Process
- DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest [TAS]
- G1/S transition of mitotic cell cycle [TAS]
- RNA metabolic process [TAS]
- anaphase-promoting complex-dependent proteasomal ubiquitin-dependent protein catabolic process [TAS]
- antigen processing and presentation of exogenous peptide antigen via MHC class I [TAS]
- antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-dependent [TAS]
- antigen processing and presentation of peptide antigen via MHC class I [TAS]
- apoptotic process [TAS]
- cellular nitrogen compound metabolic process [TAS]
- gene expression [TAS]
- mRNA metabolic process [TAS]
- mitotic cell cycle [TAS]
- negative regulation of apoptotic process [TAS]
- negative regulation of ubiquitin-protein ligase activity involved in mitotic cell cycle [TAS]
- positive regulation of ubiquitin-protein ligase activity involved in mitotic cell cycle [TAS]
- protein polyubiquitination [TAS]
- regulation of apoptotic process [TAS]
- regulation of cellular amino acid metabolic process [TAS]
- regulation of ubiquitin-protein ligase activity involved in mitotic cell cycle [TAS]
- small molecule metabolic process [TAS]
- viral process [TAS]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
MDM4
Gene Ontology Biological Process
- DNA damage response, signal transduction by p53 class mediator [IEP]
- G0 to G1 transition [IEP]
- cell proliferation [IEP]
- cellular response to hypoxia [IEP]
- negative regulation of cell proliferation [TAS]
- negative regulation of protein catabolic process [IMP]
- negative regulation of transcription from RNA polymerase II promoter [IDA]
- protein complex assembly [IDA]
- protein stabilization [IEP]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
- nucleoplasm [IDA]
- nucleus [IDA, NAS]
Reconstituted Complex
An interaction is detected between purified proteins in vitro.
Publication
MDMX promotes proteasomal turnover of p21 at G1 and early S phases independently of, but in cooperation with, MDM2.
We have shown previously that MDM2 promotes the degradation of the cyclin-dependent kinase inhibitor p21 through a ubiquitin-independent proteolytic pathway. Here we report that the MDM2 analog, MDMX, also displays a similar activity. MDMX directly bound to p21 and mediated its proteasomal degradation. Although the MDMX effect was independent of MDM2, they synergistically promoted p21 degradation when coexpressed in cells. ... [more]
Throughput
- Low Throughput
Related interactions
| Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
|---|---|---|---|---|---|---|
| MDM4 PSMD2 | 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 | - | |
| PSMD2 MDM4 | 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 | - | |
| PSMD2 MDM4 | Co-fractionation Co-fractionation Interaction inferred from the presence of two or more protein subunits in a partially purified protein preparation. If co-fractionation is demonstrated between 3 or more proteins, then add them as a complex. | Low | - | BioGRID | - |
Curated By
- BioGRID