Pro-TGF-alpha cytoplasmic domain-interacting protein 18
Scaffold protein Pbp1
Syndecan binding protein (syntenin)
Syndecan binding protein 1
Syndecan-binding protein 1
FunctionSeems to function as an adapter protein. In adherens junctions may function to couple syndecans to cytoskeletal proteins or signaling components. Seems to couple transcription factor SOX4 to the IL-5 receptor (IL5RA). May also play a role in vesicular trafficking. Seems to be required for the targeting of TGFA to the cell surface in the early secretory pathway.
Tissue specificityWidely expressed. Expressed in fetal kidney, liver, lung and brain. In adult highest expression in heart and placenta.
Post-translational modificationsPhosphorylated on tyrosine residues.
Cellular localizationCell junction > focal adhesion. Cell junction > adherens junction. Cell membrane. Endoplasmic reticulum membrane. Nucleus. Melanosome. Cytoplasm > cytosol. Cytoplasm > cytoskeleton. Mainly membrane-associated. Localized to adherens junctions, focal adhesions and endoplasmic reticulum. Colocalized with actin stress fibers. Also found in the nucleus. Identified by mass spectrometry in melanosome fractions from stage I to stage IV.