Radioligand binding to muscarinic receptors of bovine aortic endothelial cells.


1. Muscarinic receptors on endothelial cells of bovine thoracic aorta were characterized by binding assays in which (-)-[3H]-N-methyl quinuclidinyl benzilate ([3H]-NMeQNB) was used as radioligand. 2. Binding of [3H]-NMeQNB to crude membranes of freshly isolated endothelial cells was atropine-displaceable and of high affinity (KD = 0.48 nM) to a single class… (More)


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