
Keywords: cAMP; adenosine 3â²,5â²-cyclic monophosphate; cGMP; guanosine 3â²,5â²-cyclic monophosphate; dnPDE2A; a catalytically-dead mutant of PDE2; EHNA; erythro-9-(2-hydroxy-3-nonyl)adenine; FBS; fetal bovine serum; MTS; 3-(4,5-dimethylthiazol-2-yl)-5-(3-carbo