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. Author manuscript; available in PMC: 2012 Sep 9.
Published in final edited form as: Naunyn Schmiedebergs Arch Pharmacol. 1993 May;347(5):521–526. doi: 10.1007/BF00166745

Fig. 7.

Fig. 7

Hypothetical model of the irreversible binding of DITC-APEC. The flexibility of the long side chain linking the adenosine pharmacophore to the point of covalent attachment (arrow) allows ligand bound to the receptor (A) to reversibly dissociate (B). However, the lack of antagonism by 8-SPT argues against such a model. See text for additional discussion