Description
Product Characteristics: FUNCTION: Essential component of the retromer complex, a complex required to retrieve lysosomal enzyme receptors (IGF2R and M6PR) from endosomes to the trans-Golgi network. Also required to regulate transcytosis of the polymeric immunoglobulin receptor (pIgR-pIgA). Has low protein phosphatase activity towards a serine-phosphorylated peptide derived from IGF2R (in vitro). Has no activity towards p-nitrophenylphosphate, p-nitrophenylphosphorylcholine or phosphatidylinositlphosphates (in vitro). CATALYTIC ACTIVITY: O-phospho-L(or D)-serine + H2O = L(or D)-serine + phosphate. COFACTOR: Binds 2 zinc ions per subunit. SUBCELLULAR LOCATION: Cytoplasm. Membrane, Peripheral membrane protein. Endosome membrane, Peripheral membrane protein.,Vesicle Protein Sorting,Vacuolar protein sorting-associated protein 29, Vesicle protein sorting 29, VPS29
Target Information: This gene belongs to a group of vacuolar protein sorting (VPS) genes that, when functionally impaired, disrupt the efficient delivery of vacuolar hydrolases. The protein encoded by this gene is a component of a large multimeric complex, termed the retromer complex, which is involved in retrograde transport of proteins from endosomes to the trans-Golgi network. This VPS protein may be involved in the formation of the inner shell of the retromer coat for retrograde vesicles leaving the prevacuolar compartment. Alternative splice variants encoding different isoforms, and usage of multiple polyadenylation sites have been found for this gene. [provided by RefSeq, Jul 2008]