Immunogen: Synthetic 16 amino acid peptide from 2nd extracellular domain of human GPR45. Percent identity with other species by BLAST analysis: Human, Gibbon, Monkey, Marmoset, Rabbit (100%); Gorilla, Bat, Lizard (94%); Mouse, Rat, Bovine, Elephant, Panda, Horse (88%); Hamster, Opossum (81%).