Immunogen: Synthetic 18 amino acid peptide from N-terminal extracellular domain of human CASR. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Bovine (100%); Marmoset, Rat, Bat, Horse, Rabbit (94%); Mouse, Dog, Hamster, Pig (89%); Elephant, Panda (83%).