SMG1
Gene Ontology Biological Process
- RNA metabolic process [TAS]
- double-strand break repair via homologous recombination [IBA]
- gene expression [TAS]
- mRNA export from nucleus [TAS]
- mRNA metabolic process [TAS]
- nuclear-transcribed mRNA catabolic process, nonsense-mediated decay [IDA, NAS, TAS]
- peptidyl-serine phosphorylation [IDA, TAS]
- phosphatidylinositol phosphorylation [IDA]
- protein autophosphorylation [IDA]
- response to stress [IDA]
Gene Ontology Molecular Function
EIF4A3
Gene Ontology Biological Process
- ATP catabolic process [IDA]
- RNA metabolic process [TAS]
- cytokine-mediated signaling pathway [TAS]
- embryonic cranial skeleton morphogenesis [IMP]
- gene expression [TAS]
- mRNA metabolic process [TAS]
- mRNA splicing, via spliceosome [IC]
- negative regulation of translation [IDA]
- nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay [TAS]
- nuclear-transcribed mRNA catabolic process, nonsense-mediated decay [IMP, TAS]
- nuclear-transcribed mRNA poly(A) tail shortening [TAS]
- positive regulation of translation [IMP]
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
Binding of a novel SMG-1-Upf1-eRF1-eRF3 complex (SURF) to the exon junction complex triggers Upf1 phosphorylation and nonsense-mediated mRNA decay.
Nonsense-mediated mRNA decay (NMD) is a surveillance mechanism that degrades mRNA containing premature termination codons (PTCs). In mammalian cells, recognition of PTCs requires translation and depends on the presence on the mRNA with the splicing-dependent exon junction complex (EJC). While it is known that a key event in the triggering of NMD is phosphorylation of the trans-acting factor, Upf1, by ... [more]
Throughput
- Low Throughput
Related interactions
| Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
|---|---|---|---|---|---|---|
| SMG1 EIF4A3 | 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. | Low | - | BioGRID | - | |
| EIF4A3 SMG1 | 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. | High | - | BioGRID | 3443249 |
Curated By
- BioGRID