A novel natriuretic peptide isolated from eel cardiac ventricles
- 6 May 1991
- journal article
- research article
- Published by Wiley in FEBS Letters
- Vol. 282 (2) , 317-320
- https://doi.org/10.1016/0014-5793(91)80504-v
Abstract
A new natriuretic peptide, which exhibits the entire spectrum of actions known to be characteristics of atrial and brain natriuretic peptides (ANP and BNP), was isolated from eel cardiac ventricles and has been named ventricular natriuretic peptide (VNP). The primary structure of eel VNP is characterized by its uniquely long C‐ terminal ‘tall’ that extends from the second half‐cystine. Thus, eel VNP appears to be a novel natriuretic peptide of a type not found in mammals. With respect to natriuretic (rat) and vasodepressor (rat and eel) activities, eel VNP is much more potent than human ANP in eels and almost equipotent in rats. Strong tachyphylaxis is observed for the vasodepressor effect in both rats and eels, whereas it is not observed for the natriuretic effect in rats.Keywords
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