“…Clathrin coated vesicles (CV) participate in the transport and recycling of hormones, cellu lar membranes and their constituent mole cules, i.e., receptors (1)(2)(3)(4)(5)(6)(7). In neuronal tis sue, CV have been shown to transport opiate, muscarinic, beta-adrenergic, alpha-adrenergic, and adenosine (Al) receptors (1,3,(5)(6)(7).…”