Immunogen: Synthetic 20 amino acid peptide from hinge domain of human ROR Alpha. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Marmoset, Mouse, Rat, Bovine, Dog, Bat, Hamster, Elephant, Panda, Horse, Rabbit, Pig (100%); Opossum, Turkey, Chicken, Platypus, Xenopus, Pufferfish, Zebrafish, Stickleback (95%).