title: Assay of cyclic nucleotide phosphodiesterases with radioactive substrates.
mesh_terms: D002852:Chromatography, Ion Exchange; D000242:Cyclic AMP; D006152:Cyclic GMP; D004355:Drug Stability; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008722:Methods; D010727:Phosphoric Diester Hydrolases / Q000032:analysis*; D012910:Snake Venoms / Q000032:analysis; D014316:Tritium
chemical_list: D012910:Snake Venoms; D014316:Tritium; D000242:Cyclic AMP; D010727:Phosphoric Diester Hydrolases; D006152:Cyclic GMP