Immunogen: Synthetic 19 amino acid peptide from internal region of human SCN5A / Nav1.5. Percent identity with other species by BLAST analysis: Human, Gorilla, Monkey, Marmoset, Mouse, Rat, Panda, Dog, Horse, Pig (100%); Elephant (95%); Gibbon, Bovine, Bat (89%); Opossum (84%).