Intracellular transport protein that binds sterols and phospholipids and mediates lipid transport between intracellular compartments. Increases plasma membrane cholesterol levels and decreases phosphatidylinositol-4,5-bisphosphate levels in the cell membrane . Binds phosphoinositides, such as phosphatidylinositol-4,5-bisphosphate . Exhibits strong binding to phosphatidic acid and weak binding to phosphatidylinositol 3-phosphate . Binds cholesterol, dehydroergosterol, 22(R)-hydroxycholesterol and 25-hydroxycholesterol (in vitro) .
Cytoplasm, cytosol . Lipid droplet . Cell membrane ; Peripheral membrane protein ; Cytoplasmic side . Detected on the surface of cytosolic lipid droplets (PubMed:19224871). Recruited to the cell membrane by phosphatidylinositol-phosphate binding (PubMed:30581148). .
Widely expressed.
下载说明书
