n-ethylcarboxamide adenosine ( neca ) , 2-chloroadenosine ( 2-cl-ado ) and l-n6-phenylisopropyladenosine ( pia ) all stimulated adenylate cyclase in a concentration-dependent manner , with an apparent ka between 0.5 and 1 microm .
C0001443
adenosine
C0031484
l