Immunogen: Synthetic 16 amino acid peptide from 1st extracellular domain of human MC5 Receptor. Percent identity with other species by BLAST analysis: Human, Chimpanzee, Gorilla, Monkey, Panda (100%); Marmoset, Mouse, Dog, Bat, Hamster, Rabbit (94%); Rat, Opossum (88%); Sheep, Bovine, Platypus (81%).