Endothelin 1 (ET-1), also known as preproendothelin-1 (PPET1), is a potent vasoconstrictor peptide produced by vascular endothelial cells.^[5] The protein encoded by this gene – EDN1 – is proteolytically processed to release endothelin 1. Endothelin 1 is one of three isoforms of human endothelin.

Quick Facts EDN1, Available structures ...

EDN1
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 1EDN, 1EDP, 1T7H, 1V6R, 6DK5, 5GLH
Identifiers
Aliases	EDN1, ARCND3, ET1, HDLCQ7, QME, endothelin 1, PPET1
External IDs	MGI: 95283 HomoloGene: 1476 GeneCards: EDN1
Gene location (Human) Chr. Chromosome 6 (human)[1] Band 6p24.1 Start 12,290,361 bp[1] End 12,297,194 bp[1]
Gene location (Mouse) Chr. Chromosome 13 (mouse)[2] Band 13 A4|13 20.82 cM Start 42,454,952 bp[2] End 42,461,466 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in lower lobe of lung right lung subcutaneous adipose tissue upper lobe of left lung human penis islet of Langerhans tibial nerve rectum Achilles tendon gallbladder Top expressed in pharynx right lung lobe left colon vascular endothelium left lung lobe external carotid artery internal carotid artery endoderm lip carotid body More reference expression data BioGPS More reference expression data
Gene ontology Molecular function hormone activity signaling receptor binding cytokine activity endothelin B receptor binding protein binding endothelin A receptor binding Cellular component cytoplasm Weibel-Palade body basal part of cell extracellular region rough endoplasmic reticulum lumen extracellular space transport vesicle Biological process skeletal system development response to amino acid positive regulation of cytosolic calcium ion concentration involved in phospholipase C-activating G protein-coupled signaling pathway positive regulation of MAP kinase activity regulation of sensory perception of pain vasoconstriction body fluid secretion positive regulation of sarcomere organization positive regulation of cardiac muscle hypertrophy cell surface receptor signaling pathway multicellular organism aging artery smooth muscle contraction cellular response to interferon-gamma positive regulation of chemokine-mediated signaling pathway phosphatidylinositol 3-kinase signaling response to leptin positive regulation of mitotic nuclear division cellular response to hypoxia response to muscle stretch cellular response to calcium ion cellular response to transforming growth factor beta stimulus positive regulation of renal sodium excretion blood vessel morphogenesis negative regulation of blood coagulation response to nicotine in utero embryonic development neutrophil chemotaxis heart development positive regulation of prostaglandin secretion vein smooth muscle contraction cartilage development rhythmic excitation protein kinase C-activating G protein-coupled receptor signaling pathway cellular response to glucocorticoid stimulus branching involved in blood vessel morphogenesis negative regulation of hormone secretion positive regulation of smooth muscle contraction negative regulation of nitric-oxide synthase biosynthetic process positive regulation of prostaglandin-endoperoxide synthase activity positive regulation of urine volume positive regulation of JUN kinase activity leukocyte activation membrane depolarization negative regulation of transcription by RNA polymerase II response to ozone respiratory gaseous exchange by respiratory system positive regulation of heart rate regulation of blood pressure response to lipopolysaccharide response to prostaglandin F regulation of vasoconstriction cellular response to interleukin-1 response to salt positive regulation of cell size middle ear morphogenesis sensory perception of pain prostaglandin biosynthetic process dorsal/ventral pattern formation phospholipase D-activating G protein-coupled receptor signaling pathway positive regulation of odontogenesis regulation of pH positive regulation of smooth muscle cell proliferation protein kinase C deactivation histamine secretion maternal process involved in parturition intracellular signal transduction response to hypoxia neural crest cell development regulation of systemic arterial blood pressure by endothelin nitric oxide transport positive regulation of cell migration response to testosterone positive regulation of cytosolic calcium ion concentration epithelial fluid transport positive regulation of nitric oxide biosynthetic process cell-cell signaling cellular response to tumor necrosis factor response to activity response to dexamethasone superoxide anion generation positive regulation of endothelial cell migration cellular response to peptide hormone stimulus cellular response to fatty acid peptide hormone secretion cellular response to mineralocorticoid stimulus positive regulation of cell population proliferation inositol phosphate-mediated signaling positive regulation of hormone secretion negative regulation of smooth muscle cell apoptotic process calcium-mediated signaling response to transforming growth factor beta positive regulation of transcription by RNA polymerase II positive regulation of DNA-binding transcription factor activity positive regulation of cell growth involved in cardiac muscle cell development positive regulation of neutrophil chemotaxis regulation of signaling receptor activity G protein-coupled receptor signaling pathway adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway regulation of glucose transmembrane transport negative regulation of gene expression positive regulation of NIK/NF-kappaB signaling positive regulation of vascular associated smooth muscle cell proliferation Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 1906 13614 Ensembl ENSG00000078401 ENSMUSG00000021367 UniProt P05305 P22387 RefSeq (mRNA) NM_001168319 NM_001955 NM_010104 RefSeq (protein) NP_001161791 NP_001946 NP_001161791 NP_001946 NP_034234 Location (UCSC) Chr 6: 12.29 – 12.3 Mb Chr 13: 42.45 – 42.46 Mb PubMed search [3] [4]
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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.^[5][6]

Endothelin-1 receptor antagonists (Bosentan) are used in the treatment of pulmonary hypertension.^[5] Use of these antagonists prevents pulmonary arterial constriction and thus inhibits pulmonary hypertension.^[5]

As of 2020, the role of endothelin-1 in affecting lipid metabolism and insulin resistance in obesity mechanisms was under clinical research.^[7]