Immunogen: Synthetic 18 amino acid peptide from 3rd extracellular domain of human NPFFR2. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Marmoset, Horse (100%); Monkey, Elephant, Rabbit, Pig (94%); Dog, Bovine (89%); Mouse, Rat, Panda, Bat (83%).