Atrial natriuretic peptides (ANPs) are vertebrate hormones that play an important role in the control ofcardiovascular homeostatis, and sodium and water balance in general.There are different NPs that vary in length but share a common core. All are processed from a single precursor.A disulphide bond resident in the C-terminal section is required for full activity of atriopeptins. The familyof NPs includes structurally-related peptides that elicit similar pharmacological spectra. Amongst these arebrain natriuretic peptide (BNP); C-type natriuretic peptide (CNP); ventricular natriuretic peptide (VNP); and green mamba natriuretic peptide (DNP).