TTPA (human), recombinant protein

Protein function: Binds alpha-tocopherol, enhances its transfer between separate membranes, and stimulates its release from liver cells (PubMed:7887897). Binds both phosphatidylinositol 3,4-bisphosphate and phosphatidylinositol 4,5-bisphosphate, the resulting conformation change is important for the release of the bound alpha-tocopherol. [The UniProt Consortium]