Protein Name NPC intracellular cholesterol transporter 1
Organism Homo sapiens
Gene ID 4864
Gene Symbol


UniProt O15118 (NPC1_HUMAN)
Relationships Total Number of functionally related compound(s) : 307
Total Number of Articles : 552

NPC intracellular cholesterol transporter 1

Gene Summary

This gene encodes a large protein that resides in the limiting membrane of endosomes and lysosomes and mediates intracellular cholesterol trafficking via binding of cholesterol to its N-terminal domain. It is predicted to have a cytoplasmic C-terminus, 13 transmembrane domains, and 3 large loops in the lumen of the endosome - the last loop being at the N-terminus. This protein transports low-density lipoproteins to late endosomal/lysosomal compartments where they are hydrolized and released as free cholesterol. Defects in this gene cause Niemann-Pick type C disease, a rare autosomal recessive neurodegenerative disorder characterized by over accumulation of cholesterol and glycosphingolipids in late endosomal/lysosomal compartments.[provided by RefSeq, Aug 2009]

  • NPC intracellular cholesterol transporter 1
  • Niemann-Pick C1 protein
  • NPC
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