Immunogen: Synthetic 17 amino acid peptide from C-terminus of human GPR1. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Monkey (100%); Marmoset, Bovine, Bat (94%); Rat, Elephant, Panda, Dog, Pig, Platypus (88%); Mouse, Horse, Opossum (82%).