2. Signaling Pathways
  3. GPCR/G Protein
  4. Endothelin Receptor

Endothelin Receptor

Endothelin Receptor

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Endothelin receptors are G protein-coupled receptors (GPCRs) of the β-group of rhodopsin receptors that bind to endothelin ligands, which are 21 amino acid long peptides derived from longer prepro-endothelin precursors. There are at least four types known, ETA, ETB (ETB1, ETB2) and ETC. The ETA receptor is characterized by having high affinity and selectivity for ET-1 and ET-2 compared to ET-3, whereas the ETB receptor has equivalent high affinity for all three endothelin isopeptides.

Endothelins are synthesized in several tissues, including the vascular endothelium (ET-1 exclusively) and smooth muscle cells. Released endothelin binds to the endothelin receptors ETA and ETB, the ETA receptors on vascular smooth muscle cells mediating vasoconstriction, and the ETB receptors on the endothelium linked to nitric oxide (NO) and prostacyclin release.

Endothelin Receptor Isoform Specific Products:

Endothelin Receptor Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-P0202
    Endothelin 1 (swine, human)
    		Activator 99.12%
    Endothelin 1 (swine, human) is a synthetic peptide with the sequence of human and swine Endothelin 1, which is a potent endogenous vasoconstrictor. Endothelin 1 acts through two types of receptors ETA and ETB.
    Endothelin 1 (swine, human)
  • HY-A0013
    Bosentan
    		Antagonist 99.98%
    Bosentan is a competitive and dual antagonist of endothelin-1 (ET) for the ETA and ETB receptors with Ki of 4.7 nM and 95 nM in human SMC, respectively.
    Bosentan
  • HY-14184
    Macitentan
    		Antagonist 99.95%
    Macitentan (ACT-064992) is an orally active, non-peptide dual ETA and ETB (endothelin receptor) antagonist. Macitentan has the potential for idiopathic pulmonary fibrosis (IPF) and pulmonary arterial hypertension (PAH).
    Macitentan
  • HY-13209
    Ambrisentan
    		Antagonist 99.95%
    Ambrisentan is a selective ET type A receptor (ETAR) antagonist.
    Ambrisentan
  • HY-15403A
    Atrasentan hydrochloride
    		Antagonist 99.87%
    Atrasentan hydrochloride (ABT-627 hydrochloride) is a selective endothelin A receptor antagonist with an IC50 of 0.0551 nM for ETA.
    Atrasentan hydrochloride
  • HY-A0013AR
    Bosentan hydrate (Standard)
    		Antagonist
    Bosentan (hydrate) (Standard) is the analytical standard of Bosentan (hydrate). This product is intended for research and analytical applications. Bosentan hydrate is a competitive and dual antagonist of endothelin-1 (ET) for the ETA and ETB receptors with Ki of 4.7 nM and 95 nM in human SMC, respectively.
    Bosentan hydrate (Standard)
  • HY-101262
    SB234551
    		Antagonist
    SB234551 is a selective endothelin ETA receptor antagonist. SB234551 can be used in the study of stroke model.
    SB234551
  • HY-126036
    CH-141
    		Antagonist
    CH-141 is a peripheral vasodilator, that can be used in hypertension research.
    CH-141
  • HY-15894A
    BQ-788
    		Antagonist 98.66%
    BQ-788 is a potent, selective ETB receptor antagonist with IC50 of 1.2 nM for inhibition of ET-1 binding to human Girardi heart cells, poorly inhibiting the binding to ETA receptors in human neuroblastoma cell line SK-N-MC cells with IC50 of 1300 nM.
    BQ-788
  • HY-P1236
    Atrial Natriuretic Peptide (ANP) (1-28), rat, mouse
    		Inhibitor 99.46%
    Atrial Natriuretic Peptide (ANP) (1-28), rat, mouse is a major circulating form of ANP in rats, potently inhibits Angiotensin II (Ang II)-stimulated endothelin-1 secretion in a concentration-dependent manner.
    Atrial Natriuretic Peptide (ANP) (1-28), rat, mouse
  • HY-A0013A
    Bosentan hydrate
    		Antagonist 99.85%
    Bosentan hydrate is a competitive and dual antagonist of endothelin-1 (ET) for the ETA and ETB receptors with Ki of 4.7 nM and 95 nM in human SMC, respectively.
    Bosentan hydrate
  • HY-P0204A
    Endothelin-3, human, mouse, rabbit, rat TFA
    		99.51%
    Endothelin-3, human, mouse, rabbit, rat TFA is a 21-amino acid vasoactive peptide that binds to G-protein-linked transmembrane receptors, ET-RA and ET-RB.
    Endothelin-3, human, mouse, rabbit, rat TFA
  • HY-P0202A
    Endothelin 1 (swine, human) (TFA)
    		99.95%
    Endothelin 1 (swine, human) (TFA) is a synthetic peptide with the sequence of human and swine Endothelin 1, which is a potent endogenous vasoconstrictor. Endothelin 1 acts through two types of receptors ETA and ETB.
    Endothelin 1 (swine, human) (TFA)
  • HY-P1235A
    Carperitide acetate
    		Inhibitor 99.00%
    Carperitide acetate (Atrial Natriuretic Peptide (ANP) (1-28), human, porcine acetate) is a 28-amino acid hormone, that is normally produced and secreted by the human heart in response to cardiac injury and mechanical stretch. Carperitide acetate inhibits endothelin-1 secretion in a dose-dependent way.
    Carperitide acetate
  • HY-12378
    BQ-123
    		Antagonist 99.78%
    BQ-123 is a potent and selective endothelin A (ETA) receptor antagonist with an IC50 of 7.3 nM and a Ki of 25 nM. BQ-123 inhibits endothelin-1-mediated proliferation of human pulmonary artery smooth muscle cells and lowers blood pressure in different rat models of hypertension.
    BQ-123
  • HY-11103
    Sitaxsentan sodium
    		Inhibitor 98.83%
    Sitaxsentan sodium (IPI 1040 sodium; TBC11251 sodium) is an orally active, highly selective antagonist of endothelin A receptors.
    Sitaxsentan sodium
  • HY-15894
    BQ-788 sodium salt
    		Antagonist 99.21%
    BQ-788 sodium salt is a potent and selective ETB receptor antagonist, inhibiting ET-1 binding to ETB receptors with an IC50 of 1.2 nM in human Girrardi heart cells.
    BQ-788 sodium salt
  • HY-17621
    Sparsentan
    		Antagonist 99.77%
    Sparsentan (RE-021) is a highly potent dual angiotensin II and endothelin A receptor antagonist with Kis of 0.8 and 9.3 nM, respectively.
    Sparsentan
  • HY-B0323
    Sulfisoxazole
    		Antagonist 99.90%
    Sulfisoxazole (Sulfafurazole) is an orally active endothelin receptor antagonist with IC50 values of 0.60 μM and 22 μM against endothelin receptor A and endothelin receptor B, respectively. Sulfisoxazole is a sulfonamide antibacterial agent with an oxazole substituent. Sulfisoxazole inhibits breast cancer exosome release by targeting endothelin receptor A.
    Sulfisoxazole
  • HY-15895
    Aprocitentan
    		Antagonist 99.98%
    Aprocitentan (ACT-132577) is the major and pharmacologically active metabolite of Macitentan. Aprocitentan is an orally active dual ETA/ETB antagonist with IC50s of 3.4 nM and 987 nM, and pA2 valus of 6.7 and 5.5, respectively. Aprocitentan is an antihypertensive agent.
    Aprocitentan
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
Endothelin Receptor Isoform Comparison

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