Anti-ATTP antibodies enable researchers to detect and measure the ATTP antigen in biological samples. This target is a reported synonym of the TTPA gene, which encodes alpha tocopherol transfer protein. This protein is known to function in the metabolism of lipids, among other biological roles. The human version of ATTP has a canonical amino acid length of 278 residues and a protein mass of 31.8 kilodaltons. It is reported to be localized in the cytoplasm of cells.