Immunogen: Synthetic 16 amino acid peptide from C-terminus of human ACAN / Aggrecan. Percent identity with other species by BLAST analysis: Human, Gorilla, Monkey, Marmoset, Rat, Hamster (100%); Mouse (94%); Horse, Opossum, Platypus (88%); Bovine, Dog, Bat, Panda, Pig (81%).