Immunogen: Synthetic 16 amino acid peptide from 2nd extracellular domain of human P2RY13 / P2Y13. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Marmoset, Bovine, Rabbit, Pig (100%); Mouse, Dog, Hamster, Elephant, Panda, Opossum (94%); Horse, Chicken (88%); Rat, Lizard (81%).