Immunogen: Synthetic peptide C-SVELKHYIQEDN from an internal region of human USP28 (NP_065937.1). Percent identity by BLAST analysis: Human, Gibbon, Monkey, Marmoset, Panda, Bovine, Dog, Horse, Rabbit, Pig, Opossum (100%); Elephant, Bat (92%); Mouse, Rat, Hamster (83%).