Immunogen: Synthetic 16 amino acid peptide from internal region of human GPC4 / Glypican 4. Percent identity with other species by BLAST analysis: Human, Gorilla, Gibbon, Monkey, Mouse, Rat, Bat, Hamster (100%); Marmoset, Dog, Elephant, Panda, Rabbit (94%); Bovine, Horse, Pig (88%).