moreover , complex chains appear to be associated with the receptors with the highest affinity for ( - ) -isoproterenol and polymannosidic chains with the receptors with the lowest affinity for this agonist . the carbohydrate moiety of the beta-adrenergic receptor is involved in the expression and function of the beta 2-adrenergic receptors at the surface of the a431 cells , since tunicamycin and monensin , complete and partial inhibitors of glycosylation respectively , diminish the number of binding sites at the cell surface and increase the total number of sites in the cell .
C0699040
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C0007634
cell