Early endosomal protein that functions to recruit SMAD2/SMAD3 to intracellular membranes and to the TGF-beta receptor. Plays a significant role in TGF-mediated signaling by regulating the subcellular location of SMAD2 and SMAD3 and modulating the transcriptional activity of the SMAD3/SMAD4 complex. Possibly associated with TGF-beta receptor internalization.
Subcellular location: Cytoplasm, Cell membrane
Synonyms: NSP, SARA, MADHIP, SMADIP, PPP1R173, Zinc finger FYVE domain-containing protein 9, Mothers against decapentaplegic homolog-interacting protein, Madh-interacting protein, Novel serine protease, Receptor activation anchor, hSARA, Smad anchor for receptor activation, ZFYVE9