Immunogen: Synthetic 18 amino acid peptide from Metalloprotease domain of human ADAMTS5. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Marmoset, Mouse, Rat, Hamster, Elephant, Panda, Dog, Bat, Horse (100%); Pig (94%); Bovine, Opossum, Xenopus (89%); Lizard (83%).