Niemann-Pick disease type C

Niemann-Pick disease type C is an autosomal recessive lysosomal lipid storage disorder caused by a defect of NPC1 or NPC2 involved in cholesterol trafficking. The disease is characterized by neurodegeneration starting from early life. While NPC1 is a lysosomal transmembrane protein involved in shuttling of substrates to the Golgi and possibly elsewhere in cells, NPC2 is a soluble lysosomal protein known to bind cholesterol.