Human Alpha-Tocopherol Transfer Protein, TTPA ELI

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 (By similarity).