Oxysterol-binding protein that mediates feedback control of cholesterol synthesis by controlling both endoplasmic reticulum to Golgi transport of SCAP and degradation of HMGCR . 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 . 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 . 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 . 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 . 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 . .

Insulin-induced gene 2 protein (INSIG-2),INSIG2

Q9Y5U4,Q91WG1,Q80UA9

51141

Human,Mouse,Rat

WB,ELISA

WB 1:500-2000
ELISA 1:5000-20000

INSI2 Polyclonal Antibody detects endogenous levels of protein.

24kDa

Rabbit

Synthesized peptide derived from human protein . at AA range: 40-120

Polyclonal

Rabbit,IgG

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.

Liquid in PBS containing 50% glycerol, and 0.02% New type preservative N.

1 mg/ml

Store at -20℃. Stable for 12 months from date of receipt.