INSIG1
Gene Ontology Biological Process
Gene Ontology Molecular Function
Gene Ontology Cellular Component
SREBF2
Gene Ontology Biological Process
- cellular lipid metabolic process [TAS]
- cellular response to laminar fluid shear stress [NAS]
- lipid metabolic process [TAS]
- negative regulation of cholesterol efflux [IDA]
- negative regulation of transcription from RNA polymerase II promoter [IDA]
- positive regulation of cholesterol storage [IDA]
- positive regulation of transcription from RNA polymerase II promoter [IDA]
- regulation of lipid transport by negative regulation of transcription from RNA polymerase II promoter [IDA]
- response to low-density lipoprotein particle [IEP]
- small molecule metabolic process [TAS]
Gene Ontology Molecular Function- C-8 sterol isomerase activity [IDA]
- E-box binding [IDA]
- RNA polymerase II core promoter proximal region sequence-specific DNA binding [IDA]
- RNA polymerase II core promoter proximal region sequence-specific DNA binding transcription factor activity involved in negative regulation of transcription [IDA]
- protein C-terminus binding [IPI]
- protein binding [IPI]
- C-8 sterol isomerase activity [IDA]
- E-box binding [IDA]
- RNA polymerase II core promoter proximal region sequence-specific DNA binding [IDA]
- RNA polymerase II core promoter proximal region sequence-specific DNA binding transcription factor activity involved in negative regulation of transcription [IDA]
- protein C-terminus binding [IPI]
- protein binding [IPI]
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
Crucial step in cholesterol homeostasis: sterols promote binding of SCAP to INSIG-1, a membrane protein that facilitates retention of SREBPs in ER.
Using coimmunoprecipitation and tandem mass spectrometry, we identify INSIG-1 as an ER protein that binds the sterol-sensing domain of SREBP cleavage-activating protein (SCAP) and facilitates retention of the SCAP/SREBP complex in the ER. In sterol-depleted cells, SCAP escorts SREBPs from ER to Golgi for proteolytic processing, thereby allowing SREBPs to stimulate cholesterol synthesis. Sterols induce binding of SCAP to INSIG-1, ... [more]
Throughput
- Low Throughput
Related interactions
| Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
|---|---|---|---|---|---|---|
| INSIG1 SREBF2 | 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