Protein Domain : SNX6, PX domain IPR042136

Type	Domain
Description	This entry represents the PX domain found in Sorting nexin-6 (SNX6).SNX6 was found to interact with members of the transforming growth factor-beta family of receptor serine/threonine kinases. Strong heteromeric interactions were also seen among SNX1, -2, -4, and -6, suggesting the formation in vivoof oligomeric complexes. SNX6 is localized in the cytoplasm where it is thought to target proteins to the trans-Golgi network [ ]. In addition, SNX6 was found to be translocated from the cytoplasm to nucleus by Pim-1, an oncogene product of serine/threonine kinase. This translocation is not affected by Pim-1-dependent phosphorylation, but the functional significance is unknown [ ].The Phox Homology (PX) domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions. Sorting nexins (SNXs) make up the largest group among PX domain containing proteins. They are involved in regulating membrane traffic and protein sorting in the endosomal system. The PX domain of SNXs binds phosphoinositides (PIs) and targets the protein to PI-enriched membranes [ , ]. SNXs differ from each other in PI-binding specificity and affinity, and the presence of other protein-protein interaction domains, which help determine subcellular localization and specific function in the endocytic pathway [, , ].
Short Name	PX_SNX6