What is the function of NPC2 in the cell?
The NPC2 gene provides instructions for making a protein that is located inside lysosomes, which are compartments in the cell that digest and recycle materials. The NPC2 protein attaches (binds) to cholesterol. Cholesterol is a waxy, fat-like substance that is produced in the body and obtained from foods.
What is NPC1 protein?
Abstract. Niemann–Pick C1 protein (NPC1) is a late-endosomal membrane protein involved in trafficking of LDL-derived cholesterol, Niemann–Pick disease type C, and Ebola virus infection. NPC1 contains 13 transmembrane segments (TMs), five of which are thought to represent a “sterol-sensing domain” (SSD).
What is NPC1 disease?
NPC1 loss-of-function mutations in humans cause NPC1 disease, a rare autosomal-recessive lipid-storage disorder characterized by progressive and lethal neurodegeneration, as well as liver and lung failure, due to cholesterol infiltration.
What is NPC1 in Ebola virus?
The essential entry receptor NPC1 is the first known molecular determinant of the cellular host range of EBOV and other filoviruses (25, 26). In this study, we uncover one mechanism by which NPC1 imposes a species-specific barrier to EBOV infection.
What are signs and symptoms of Niemann-Pick disease?
Niemann-Pick signs and symptoms may include:
- Clumsiness and difficulty walking.
- Excessive muscle contractions (dystonia) or eye movements.
- Sleep disturbances.
- Difficulty swallowing and eating.
- Recurrent pneumonia.
Is Niemann-Pick disease curable?
There is currently no cure for Niemann-Pick disease. Treatment is supportive. Children usually die from infection or progressive neurological loss. There is currently no effective treatment for persons with type A.
Which of the following is a symptom typically associated with Pick’s disease?
The five distinguishing features of Pick’s disease Initial personality changes. Loss of normal controls, such as gluttony or hypersexuality. Lack of inhibition. Roaming behavior.