Endothelin 1 (ET-1), also known as preproendothelin-1 (PPET1), is the most potent vasoconstrictor produced by the human body.[5] It is a peptide produced by vascular endothelial cells,[6] as well as by cells in the heart (affecting contractility) and kidney (affecting sodium handling).[7] The protein encoded by this gene –EDN1– is proteolytically processed to release endothelin 1. Endothelin 1 is one of three isoforms of human endothelin.
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Preproendothelin is precursor of the peptide ET-1. Endothelial cells convert preproendothelin to proendothelin and subsequently to mature endothelin, which the cells release.[6][8]
12Jankowich M, Choudhary G (2020). "Endothelin-1 levels and cardiovascular events". Trends in Cardiovascular Medicine. 30 (1): 1–8. doi:10.1016/j.tcm.2019.01.007. PMID30765295.
↑Boulpaep EL, Boron WF (2009). Medical physiology: a cellular and molecular approach. Saunders/Elsevier. ISBN978-1-4160-3115-4.