Immunogen: Synthetic peptide C-HVTDRSDARLQYG from an internal region of human APH1A (NP_001071096.1; NP_057106.2). Percent identity by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Marmoset, Mouse, Rat, Hamster, Panda, Dog, Bovine, Horse, Rabbit, Pig (100%); Elephant, Bat (92%); Opossum (85%).