The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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Preparation and Storage
Stability and Storage
Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Protein SDP 1
SH3 and PX domain containing protein 3A
SH3 and PX domain containing protein SH3PX1
SH3 and PX domain-containing protein 1
SH3 and PX domain-containing protein 3A
Sorting nexin 9
WASP interactor protein
Wiskott Aldrich syndrome protein (WASP) interactor protein
Wiskott Aldrich syndrome protein interactor protein
FunctionMay be involved in several stages of intracellular trafficking. Plays a role in endocytosis via clathrin-coated pits, but also clathrin-independent, actin-dependent fluid-phase endocytosis. Plays a role in macropinocytosis. Promotes internalization of TNFR. Promotes degradation of EGFR after EGF signaling. Stimulates the GTPase activity of DNM1. Promotes DNM1 oligomerization. Promotes activation of the Arp2/3 complex by WASL, and thereby plays a role in the reorganization of the F-actin cytoskeleton. Binds to membranes enriched in phosphatidylinositol 4,5-bisphosphate and promotes membrane tubulation. Has lower affinity for membranes enriched in phosphatidylinositol 3-phosphate.
Sequence similaritiesBelongs to the sorting nexin family. Contains 1 BAR domain. Contains 1 PX (phox homology) domain. Contains 1 SH3 domain.
DomainThe PX domain mediates interaction with membranes enriched in phosphatidylinositol phosphate. Has high affinity for phosphatidylinositol-4,5-bisphosphate, but can also bind to membranes enriched in other phosphatidylinositol phosphates.
Post-translational modificationsUbiquitinated by ITCH. Phosphorylated on tyrosine residues by TNK2. Phosphorylation promotes its activity in the degradation of EGFR.
Cellular localizationCytoplasmic vesicle membrane. Cell membrane. Cytoplasmic vesicle > clathrin-coated vesicle. Golgi apparatus > trans-Golgi network. Cell projection > ruffle. Cytoplasm. Localized at sites of endocytosis at the cell membrane. Detected on newly formed macropinosomes. Transiently recruited to clathrin-coated pits at a late stage of clathrin-coated vesicle formation. Colocalizes with the actin cytoskeleton at the cell membrane.