Cyclic Nucleotide Phosphodiesterases, Type 13',5'-Cyclic-AMP PhosphodiesterasesCyclic Nucleotide Phosphodiesterases, Type 5Cyclic Nucleotide Phosphodiesterases, Type 4Cyclic Nucleotide Phosphodiesterases, Type 3Cyclic Nucleotide Phosphodiesterases, Type 23',5'-Cyclic-GMP PhosphodiesterasesPhosphoric Diester Hydrolases2',3'-Cyclic-Nucleotide PhosphodiesterasesNucleotides, CyclicPhosphodiesterase InhibitorsCyclic GMPCyclic Nucleotide Phosphodiesterases, Type 7Cyclic AMPRolipramPurinones1-Methyl-3-isobutylxanthineIsoenzymesMolecular Sequence DataCalmodulinAmino Acid SequenceKineticsCyclic Nucleotide Phosphodiesterases, Type 6NucleotidesPhosphodiesterase 3 InhibitorsPhosphodiesterase 4 Inhibitors4-(3-Butoxy-4-methoxybenzyl)-2-imidazolidinoneCyclic GMP-Dependent Protein KinasesDibutyryl Cyclic GMPGuanylate CyclaseTheophyllineCyclic Nucleotide-Gated Cation ChannelsPhosphodiesterase IBase SequenceMilrinoneBucladesinePhosphorus-Oxygen LyasesSecond Messenger SystemsAdenine NucleotidesPyrrolidinonesCyclic AMP-Dependent Protein KinasesAdenylate CyclaseHydrolysisCloning, MolecularSignal TransductionCyclic IMPCattlePhosphodiesterase 5 InhibitorsColforsinBinding SitesCalciumCells, CulturedPapaverineMutationSubstrate SpecificityEnzyme ActivationCell Line8-Bromo Cyclic Adenosine MonophosphateRNA, MessengerProtein Structure, TertiaryProtein BindingSequence Homology, Amino AcidPolymorphism, Single NucleotideCatalytic DomainProteasome Endopeptidase ComplexGuanine NucleotidesIsoproterenolNitric OxideVinca AlkaloidsXanthinesSequence AlignmentEnzyme InhibitorsModels, MolecularDNACyclic P-OxidesDose-Response Relationship, DrugPhosphorylationPurinesGene Expression Regulation, EnzymologicBacterial ProteinsSulfonesEscherichia coliTime FactorsPyrophosphatasesRecombinant ProteinsMolecular Weight