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INSIG2 antibody - N-terminal region
Rabbit Polyclonal Antibody
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application 
| WB |
|---|---|
| Primary Accession | Q9Y5U4 |
| Other Accession | NM_016133, NP_057217 |
| Reactivity | Human, Mouse, Rat, Rabbit, Pig, Goat, Sheep, Horse, Bovine, Dog |
| Predicted | Mouse, Rabbit, Pig, Goat, Bovine |
| Host | Rabbit |
| Clonality | Polyclonal |
| Calculated MW | 25kDa |
| Gene ID | 51141 |
|---|---|
| Alias Symbol | MGC26273 |
| Other Names | Insulin-induced gene 2 protein, INSIG-2, INSIG2 |
| Format | Liquid. Purified antibody supplied in 1x PBS buffer with 0.09% (w/v) sodium azide and 2% sucrose. |
| Reconstitution & Storage | Add 50 ul of distilled water. Final anti-INSIG2 antibody concentration is 1 mg/ml in PBS buffer with 2% sucrose. For longer periods of storage, store at 20°C. Avoid repeat freeze-thaw cycles. |
| Precautions | INSIG2 antibody - N-terminal region is for research use only and not for use in diagnostic or therapeutic procedures. |
| Name | INSIG2 {ECO:0000303|PubMed:12242332, ECO:0000312|HGNC:HGNC:20452} |
|---|---|
| Function | Oxysterol-binding protein that mediates feedback control of cholesterol synthesis by controlling both endoplasmic reticulum to Golgi transport of SCAP and degradation of HMGCR (PubMed:12242332, PubMed:16606821, PubMed:32322062). Acts as a negative regulator of cholesterol biosynthesis by mediating the retention of the SCAP-SREBP complex in the endoplasmic reticulum, thereby blocking the processing of sterol regulatory element-binding proteins (SREBPs) SREBF1/SREBP1 and SREBF2/SREBP2 (PubMed:32322062). Binds oxysterol, including 22- hydroxycholesterol, 24-hydroxycholesterol, 25-hydroxycholesterol and 27-hydroxycholesterol, regulating interaction with SCAP and retention of the SCAP-SREBP complex in the endoplasmic reticulum (PubMed:26160948, PubMed:17428920, PubMed:32322062). In presence of oxysterol, interacts with SCAP, retaining the SCAP-SREBP complex in the endoplasmic reticulum, thereby preventing SCAP from escorting SREBF1/SREBP1 and SREBF2/SREBP2 to the Golgi (PubMed:32322062). Sterol deprivation or phosphorylation by PCK1 reduce oxysterol-binding, disrupting the interaction between INSIG2 and SCAP, thereby promoting Golgi transport of the SCAP-SREBP complex, followed by processing and nuclear translocation of SREBF1/SREBP1 and SREBF2/SREBP2 (PubMed:32322062). Also regulates cholesterol synthesis by regulating degradation of HMGCR: initiates the sterol-mediated ubiquitin-mediated endoplasmic reticulum-associated degradation (ERAD) of HMGCR via recruitment of the reductase to the ubiquitin ligase RNF139 (PubMed:16606821, PubMed:22143767). |
| Cellular Location | Endoplasmic reticulum membrane; Multi-pass membrane protein |
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Provided below are standard protocols that you may find useful for product applications.
References
Li,C.G., (2008) Int. J. Cancer 123 (2), 273-282 Reconstitution and Storage:For short term use, store at 2-8C up to 1 week. For long term storage, store at -20C in small aliquots to prevent freeze-thaw cycles.Publications:Yu, Z. et al. Rapamycin and Dietary Restriction Induce Metabolically Distinctive Changes in Mouse Liver. J. Gerontol. A. Biol. Sci. Med. Sci. glu053- (2014). doi:10.1093/gerona/glu053 WB, Bovine, H, Goat, Rabbit, Sheep, Human, Pig, Mouse, Dog, Rat24755936
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