Immunogen: Synthetic 16 amino acid peptide from 2nd extracellular domain of human Neurokinin 1 Receptor. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Marmoset, Bovine, Dog (100%); Rabbit (94%); Elephant, Horse, Guinea pig (88%); Mouse, Rat, Hamster, Opossum (81%).