Immunogen: Synthetic peptide C-KEKESQDKTLSLP from an internal region (near the C-terminus) of human APOA4 (NP_000473.2). Percent identity by BLAST analysis: Human, Chimpanzee, Gorilla (100%); Gibbon, Baboon, Monkey, Galago (92%); Marmoset, Armadillo (85%).