Immunogen: Synthetic 18 amino acid peptide from 1st extracellular domain of human GPR68. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Marmoset, Rat (100%); Mouse, Bat, Dog, Hamster, Panda, Horse, Pig (94%); Bovine, Rabbit, Platypus (89%); Elephant (83%).