Immunogen: Synthetic 16 amino acid peptide from 3rd cytoplasmic domain of human DRD3 / Dopamine Receptor D3. Percent identity with other species by BLAST analysis: Human, Chimpanzee, Gorilla, Monkey, Marmoset (100%); Gibbon, Mouse, Dog, Bovine, Bat, Hamster, Elephant, Panda, Horse, Rabbit (94%); Rat, Pig, Opossum (88%).