2 it is suggested that atp interacts with a p2 purine receptor upon the basis of ( a ) agonist potency ( atp greater than adenosine diphosphate much greater than adenosine monophosphate , adenosine ; atp greater than uridine triphosphate greater than inosine triphosphate much greater than cytosine triphosphate , guanosine triphosphate ) ;
C0001443
adenosine
C0001480
atp