>sp|P84715|ANF39_ORNAN C-type natriuretic peptide OS=Ornithorhynchus anatinus MHLSHLLAWALLLTLLSLRAEAKPPSPQPQVPRSPGDEASEAVAANGGGKKGDKEPKGDR PRLLRELRLDTRSRGSRGVWTRLLHDHPNPRKYKPANKKGLSKGCFGLKLDRIGSTSGLG C