TOPORS
Gene Ontology Biological Process
- cellular response to DNA damage stimulus [IDA]
- intrinsic apoptotic signaling pathway in response to DNA damage [IDA]
- maintenance of protein location in nucleus [IDA]
- negative regulation of apoptotic process [ISS]
- photoreceptor cell outer segment organization [ISS]
- positive regulation of ubiquitin-protein transferase activity [IDA]
- proteasome-mediated ubiquitin-dependent protein catabolic process [IMP]
- protein K48-linked ubiquitination [IDA]
- protein localization to nucleus [IMP]
- protein monoubiquitination [IDA]
- protein sumoylation [IDA, IMP]
- retina layer formation [ISS]
- retinal cone cell development [ISS]
- retinal rod cell development [ISS]
- transcription, DNA-templated [NAS]
- ubiquitin-dependent protein catabolic process [IMP]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
SIN3A
Gene Ontology Biological Process
- activation of innate immune response [IMP]
- blood coagulation [TAS]
- cellular lipid metabolic process [TAS]
- histone deacetylation [IBA]
- negative regulation of circadian rhythm [ISS]
- negative regulation of histone H3-K27 acetylation [IMP]
- negative regulation of protein localization to nucleus [IMP]
- negative regulation of transcription from RNA polymerase II promoter [IMP]
- negative regulation of transcription regulatory region DNA binding [IMP]
- negative regulation of transcription, DNA-templated [ISS]
- positive regulation of chromatin silencing [IMP]
- positive regulation of defense response to virus by host [IMP]
- positive regulation of transcription from RNA polymerase II promoter [IMP]
- protein deacetylation [IMP]
- small molecule metabolic process [TAS]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
- Sin3 complex [IDA, NAS]
- cytoplasm [IDA]
- intercellular bridge [IDA]
- nucleoplasm [IDA, TAS]
- nucleus [IDA, ISS]
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
TOPORS functions as a SUMO-1 E3 ligase for chromatin-modifying proteins.
TOPORS is the first example of a protein with both ubiquitin and SUMO-1 E3 ligase activity and has been implicated as a tumor suppressor in several different malignancies. To gain insight into the cellular role of TOPORS, a proteomic screen was performed to identify candidate sumoylation substrates. The results indicate that many of the putative substrates are involved in chromatin ... [more]
Throughput
- Low Throughput
Related interactions
Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
---|---|---|---|---|---|---|
TOPORS SIN3A | 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 | 521955 |
Curated By
- BioGRID