Patent ID: 8642550

Claim:
A polypeptide less than 44 amino acid residues in length, wherein said polypeptide comprises, in an order from amino terminus to carboxy terminus: (a) the sequence set forth in SEQ ID NO:1 or the sequence set forth in SEQ ID NO:1 with one addition, subtraction, or substitution, (b) the sequence set forth in SEQ ID NO:2 or the sequence set forth in SEQ ID NO:2 with one addition, subtraction, or substitution, and (c) the sequence set forth in SEQ ID NO:3 or the sequence set forth in SEQ ID NO:3 with one addition, subtraction, or substitution; wherein said polypeptide is not a CD-NP polypeptide consisting of the sequence set forth in SEQ ID NO:7, and wherein said polypeptide comprises natriuretic activity.