Immunogen: Synthetic 16 amino acid peptide from internal region of human CCKAR. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Marmoset, Dog, Panda (100%); Bovine, Elephant, Horse, Rabbit (94%); Bat, Opossum, Guinea pig (88%); Mouse, Rat, Hamster (81%).