SNX19
Domain
The PX domain mediates specific binding to membranes enriched in phosphatidylinositol 3-phosphate (PtdIns(P3)).
Function
Plays a role in intracellular vesicle trafficking and exocytosis (PubMed:24843546). May play a role in maintaining insulin-containing dense core vesicles in pancreatic beta-cells and in preventing their degradation. May play a role in insulin secretion (PubMed:24843546). Interacts with membranes containing phosphatidylinositol 3-phosphate (PtdIns(3P)) (By similarity).
Sequence Similarities
Belongs to the sorting nexin family.
Cellular localization
- Early endosome membrane
- Peripheral membrane protein
- Cytoplasmic side
- Cytoplasmic vesicle membrane
- Peripheral membrane protein
- Cytoplasmic side
Alternative names
KIAA0254, SNX19, Sorting nexin-19