Immunogen: Synthetic peptide C-REAFLNGSDGHKRKE from the C-terminus of human CADM4 / NECL-4 (NP_660339.1). Percent identity by BLAST analysis: Human, Gorilla, Gibbon, Marmoset, Rat, Elephant, Panda, Bovine, Dog, Bat, Horse, Rabbit, Pig (100%); Mouse, Opossum (93%); Xenopus (80%).