Immunogen: Synthetic 20 amino acid peptide from 3rd cytoplasmic domain of human CXCR4. Percent identity with other species by BLAST analysis: Human, Chimpanzee, Gorilla, Orangutan, Gibbon, Baboon, Monkey, Marmoset, Mouse, Rat, Hamster, Elephant, Rabbit, Opossum, Turkey, Chicken, Platypus, Lizard (100%).