Immunogen: Synthetic 19 amino acid peptide from 2nd extracellular domain of human CXCR7. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Mouse, Rat, Bovine, Bat, Dog, Hamster, Panda, Horse, Rabbit, Pig (100%); Marmoset, Elephant (95%); Opossum, Platypus (84%).