Immunogen: Synthetic peptide C-KASRTSSKHKEE from an internal region of mouse PTPN6 (NP_536858.1; NP_002822.2). Percent identity by BLAST analysis: Mouse, Rat, Hamster (100%); Human, Gorilla, Monkey, Marmoset, Panda, Dog, Horse, Pig (92%); Elephant, Opossum (83%).