Anti-TTPA / Alpha-tocopherol transfer protein

0.5mg/ml if reconstituted with 0.2ml sterile DI water. Alpha-tocopherol transfer protein is a protein that in humans is encoded by the TTPA gene. This gene encodes a soluble protein that binds alpha-trocopherol, a form of vitamin E, with high selectivity and affinity. This protein plays an important role in regulating vitamin E levels in the body by transporting vitamin E between membrane vesicles and facilitating the secretion of vitamin E from hepatocytes to circulating lipoproteins. Mutations in this gene cause hereditary vitamin E deficiency (ataxia with vitamin E deficiency, AVED) and retinitis pigmentosa. 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]