Endothelin 1 (swine, human), a synthetic peptide mirroring the sequence of both human and swine Endothelin 1, functions as a robust endogenous vasoconstrictor by interacting with two receptor types, ETA and ETB.
A-192621 is a potent, nonpeptide, orally active and selective endothelin B (ETB) receptor antagonist with an IC50 of 4.5 nM and a Ki of 8.8 nM. A-192621 promotes apoptosis in PASMCs and it also causes elevation of arterial blood pressure and an elevation
Aprocitentan D4 (ACT-132577 D4) is a deuterium-labeled Aprocitentan. Aprocitentan is a major and pharmacologically active metabolite of Macitentan. Aprocitentan is a dual ETAETB antagonist (IC50s: 3.4 nM and 987 nM; pA2s: 6.7 and 5.5).
Erythrofuranosyladenine(9-beta-D-Erythrofuranosyladenine, ETA) is a nontoxic MTAP substrate. Erythrofuranosyladenine is an effective salvage agent for methylthioadenosine phosphorylase–selective therapy of T-cell acute lymphoblastic leukemia with L-alanos
Phe-Met-Arg-Phe, amide dose-dependently (ED50=23 nM) activates a K+ current in peptidergic caudodorsal neurons and appears to localize with neuropeptide Y in some brain regions.