Immunogen: Synthetic 18 amino acid peptide from 3rd cytoplasmic domain of human DRD3 / Dopamine Receptor D3. Percent identity with other species by BLAST analysis: Human, Chimpanzee, Gibbon, Monkey, Marmoset, Mouse, Dog, Bat, Hamster, Panda, Horse, Pig (100%); Rat, Rabbit (94%); Elephant (89%).