Cyclic Nucleotide Phosphodiesterases, Type 13',5'-Cyclic-AMP PhosphodiesterasesCyclic Nucleotide Phosphodiesterases, Type 4Cyclic Nucleotide Phosphodiesterases, Type 3Cyclic Nucleotide Phosphodiesterases, Type 2Phosphoric Diester Hydrolases2',3'-Cyclic-Nucleotide PhosphodiesterasesNucleotides, CyclicPhosphodiesterase Inhibitors3',5'-Cyclic-GMP PhosphodiesterasesCyclic Nucleotide Phosphodiesterases, Type 5Cyclic GMPCyclic Nucleotide Phosphodiesterases, Type 7Cyclic AMPRolipram1-Methyl-3-isobutylxanthinePurinonesIsoenzymesMolecular Sequence DataCalmodulinGenotypeAmino Acid SequenceKineticsCyclic Nucleotide Phosphodiesterases, Type 6NucleotidesPhosphodiesterase 3 InhibitorsPhosphodiesterase 4 Inhibitors4-(3-Butoxy-4-methoxybenzyl)-2-imidazolidinoneDibutyryl Cyclic GMPTheophyllinePolymorphism, Single NucleotidePhosphodiesterase ICyclic Nucleotide-Gated Cation ChannelsPhosphorus-Oxygen LyasesMilrinoneBucladesinePyrrolidinonesAdenine NucleotidesBase SequenceCyclic AMP-Dependent Protein KinasesCyclic GMP-Dependent Protein KinasesAdenylate CyclaseSecond Messenger SystemsPapaverineCyclic IMPColforsinGuanylate CyclaseCloning, MolecularCattlePhosphodiesterase 5 Inhibitors8-Bromo Cyclic Adenosine MonophosphatePolymorphism, GeneticCalciumGuanine NucleotidesHydrolysisMutationIsoproterenolBinding SitesSignal TransductionXanthinesCatalytic DomainVinca AlkaloidsCyclic P-OxidesSubstrate SpecificityEnzyme ActivationSequence Homology, Amino AcidSequence Analysis, DNASequence AlignmentPhylogenyDNACells, CulturedPyrophosphatasesRNA, Messenger