USP4
Gene Ontology Biological Process
- negative regulation of protein ubiquitination [IMP]
- proteasome-mediated ubiquitin-dependent protein catabolic process [IBA]
- protein deubiquitination [IDA, IMP]
- protein localization to cell surface [IDA]
- regulation of proteasomal protein catabolic process [IBA]
- regulation of protein stability [IDA]
- spliceosomal tri-snRNP complex assembly [IMP]
Gene Ontology Molecular Function
SFN
Gene Ontology Biological Process
- apoptotic process [TAS]
- establishment of skin barrier [ISS]
- intrinsic apoptotic signaling pathway [TAS]
- intrinsic apoptotic signaling pathway in response to DNA damage [IDA]
- membrane organization [TAS]
- negative regulation of cysteine-type endopeptidase activity involved in apoptotic process [IDA]
- negative regulation of protein kinase activity [TAS]
- negative regulation of protein serine/threonine kinase activity [TAS]
- positive regulation of epidermal cell differentiation [ISS]
- positive regulation of protein insertion into mitochondrial membrane involved in apoptotic signaling pathway [TAS]
- regulation of epidermal cell division [ISS]
- release of cytochrome c from mitochondria [IDA]
- signal transduction [TAS]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
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
USP4 is regulated by AKT phosphorylation and directly deubiquitylates TGF-β type I receptor.
The stability and membrane localization of the transforming growth factor-β (TGF-β) type I receptor (TβRI) determines the levels of TGF-β signalling. TβRI is targeted for ubiquitylation-mediated degradation by the SMAD7-SMURF2 complex. Here we performed a genome-wide gain-of-function screen and identified ubiquitin-specific protease (USP) 4 as a strong inducer of TGF-β signalling. USP4 was found to directly interact with TβRI and ... [more]
Throughput
- Low Throughput
Additional Notes
- Likely ubiquitin conjugate, ubiquitylation increased when USP4 depleted
Curated By
- BioGRID