Immunogen: Synthetic 18 amino acid peptide from internal region of human MMP13. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Marmoset, Elephant, Panda, Horse, Rabbit, Pig (100%); Mouse, Rat, Sheep, Dog, Hamster (94%); Bovine, Opossum, Turkey (89%); Chicken (83%).