Immunogen: Synthetic 20 amino acid peptide from C-terminus of human Adenosine A1 Receptor. Percent identity with other species by BLAST analysis: Human, Gibbon, Monkey (100%); Orangutan, Marmoset, Elephant, Horse (95%); Rat, Pig, Guinea pig (90%); Bovine, Hamster, Panda (85%); Mouse, Dog (80%).