| Function | Intracellular cholesterol transporter which acts in concert with NPC1 and plays an important role in the egress of cholesterol from the lysosomal compartment. Unesterified cholesterol that has been released from LDLs in the lumen of the late endosomes/lysosomes is transferred by NPC2 to the cholesterol-binding pocket in the N-terminal domain of NPC1. May bind and mobilize cholesterol that is associated with membranes. NPC2 binds cholesterol with a 1:1 stoichiometry. Can bind a variety of sterols, including lathosterol, desmosterol and the plant sterols stigmasterol and beta-sitosterol. The secreted form of NCP2 regulates biliary cholesterol secretion via stimulation of ABCG5/ABCG8-mediated cholesterol transport. |
| Protein Name | Npc Intracellular Cholesterol Transporter 2Epididymal Secretory Protein E1Human Epididymis-Specific Protein 1He1Niemann-Pick Disease Type C2 Protein |
| Database Links | Reactome: R-HSA-6798695Reactome: R-HSA-8964038 |
| Cellular Localisation | SecretedEndoplasmic ReticulumLysosomeInteraction With Cell-Surface M6pr Mediates Endocytosis And Targeting To Lysosomes |
| Alternative Protein Names | Npc Intracellular Cholesterol Transporter 2 proteinEpididymal Secretory Protein E1 proteinHuman Epididymis-Specific Protein 1 proteinHe1 proteinNiemann-Pick Disease Type C2 Protein proteinNPC2 proteinHE1 protein |
Information sourced from Uniprot.org
