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Beschreibung

Full-length human EDNRA cDNA encoding ETA, The endothelin family of peptides are potent vasoconstrictors synthesized by endothelial cells in both constitutive and inducible pathways. The biological actions of endothelins are mediated by two GPCRs, ETA and ETB. ETA is the predominant receptor on smooth muscle cells and thus is the primary mediator of the vasoconstrictor activity of endothelins in vivo. Endothelin receptors are also found in the epithelium and central nervous system (Davenport, 2002). Chemicon's ETA membrane preparations are crude membrane preparations made from our proprietary stable recombinant cell lines to ensure high-level of GPCR surface expression, thus, they are ideal HTS tools for screening of ETA interactions with its ligands. The membrane preparations exhibit a Kd of 85 pM for [125I]-Endothelin-1. With 2.5 or 10 ug/well ETA Membrane Prep and 0.35 nM [125I]-Endothelin-1, greater than 7-fold and 9-fold signal-to-background ratio were obtained, respectively.