NPC1L1 Antibody – Rabbit Polyclonal

NPC1L1: Play a major role in cholesterol homeostasis. Is critical for the uptake of cholesterol across the plasma membrane of the intestinal enterocyte. Is the direct molecular target of ezetimibe, a drug that inhibits cholesterol absorbtion. Lack of activity leads to multiple lipid transport defects. The protein may have a function in the transport of multiple lipids and their homeostasis, and may play a critical role in regulating lipid metabolism. Interacts with RAB11A, MYO5B and RAB11FIP2. Interaction with RAB11A, MYO5B and RAB11FIP2 is required for proper transport to the plasma membrane upon cholesterol depletion. Expression is decreased in Caco-2 cells upon PPARD activation. Widely expressed. Expressed in liver. Also expressed in small intestine, pancreas, kidney, lung, pancreas, spleen, heart, gall bladder, brain, testis, stomach and muscle. Belongs to the patched family. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, multi-pass; Membrane protein, integral

Chromosomal Location of Human Ortholog: 7p13

Cellular Component: cytoplasmic vesicle membrane; brush border membrane; apical plasma membrane; plasma membrane; integral to membrane

Molecular Function: protein binding; hedgehog receptor activity; myosin V binding; drug binding; Rab GTPase binding

Biological Process: response to drug; cholesterol homeostasis; cholesterol transport; cholesterol absorption; lipoprotein metabolic process; signal transduction; cholesterol biosynthetic process; sterol transport