Abstract

The synthesis of biotinyl-hexaglycyl-NEDA (abbreviation:BGN), a biotinyl derivative of propranolol, is described. This bifunctional molecule binds with high affinity to the biotin-binding protein, avidin. The duck erythrocyte was used as a model beta-receptor system. Formation of an avidin-BGN-beta-receptor complex was demonstrated in intact erythrocytes, in erythrocyte ghosts, and in the digitonin-solubilized beta-receptor. The avidin-BGN complex will be used for localization and purification of the beta-receptor.

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