Proadrenomedullin (N-20) is a peptide comprised of amino acid residues 22-41 of rat preproadrenomedullin.1 The rat proadrenomedullin (N-20) sequence is similar to human proadrenomedullin (N-20) (Item No. 27102) but contains three amino acid substitutions at residues 5, 6, and 8 of the human proadrenomedullin (N-20) sequence.WARNING This product is not for human or veterinary use.