Assertion: adenosine's effect | /r/HasProperty | evoked by a2a and a2b receptors
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text: As an example, most of the effects evoked by A2A and A2B receptors are due to activation of adenylate cyclase, generation of cAMP, and activation of PKA, whereas A1 and A3 are associated with adenylate cyclase inhibition through pertussis toxin sensitive G