3',5'-Cyclic-AMP PhosphodiesterasesCyclic Nucleotide Phosphodiesterases, Type 4Cyclic Nucleotide Phosphodiesterases, Type 3Phosphoric Diester HydrolasesCyclic Nucleotide Phosphodiesterases, Type 1Cyclic Nucleotide Phosphodiesterases, Type 23',5'-Cyclic-GMP PhosphodiesterasesPhosphodiesterase Inhibitors2',3'-Cyclic-Nucleotide PhosphodiesterasesCyclic Nucleotide Phosphodiesterases, Type 5RolipramCyclic GMPCyclic Nucleotide Phosphodiesterases, Type 7Cyclic AMPPurinonesPhosphodiesterase 4 InhibitorsPhosphodiesterase 3 InhibitorsNucleotides, Cyclic1-Methyl-3-isobutylxanthinePhosphorus-Oxygen LyasesPhosphodiesterase I4-(3-Butoxy-4-methoxybenzyl)-2-imidazolidinonePyrrolidinonesMilrinoneIsoenzymesPhosphodiesterase 5 InhibitorsCyclic P-OxidesCyclic AMP-Dependent Protein KinasesSecond Messenger SystemsGlycerylphosphorylcholineCyclic GMP-Dependent Protein KinasesCatalytic DomainPyrophosphatasesAdenylate CyclasePapaverineKineticsTheophyllineVinca AlkaloidsAmino Acid SequenceMolecular Sequence DataHydrolysisA Kinase Anchor ProteinsSignal TransductionColforsinGuanylate CyclaseXanthinesSulfonesGene Expression Regulation, EnzymologicSubstrate SpecificityCarbolinesQuinolonesIsoproterenolCalmodulinPurinesSubcellular FractionsProtein Structure, TertiaryEnzyme InhibitorsEnzyme ActivationCatalysisModels, MolecularIsoquinolinesCalciumDinucleoside PhosphatesCattleSequence Homology, Amino AcidSequence AlignmentBacterial ProteinsDictyosteliumCells, CulturedBucladesine8-Bromo Cyclic Adenosine MonophosphateMyocardiumBinding SitesDipyridamoleBase SequenceAdenine NucleotidesFluorescence Resonance Energy TransferNitric OxideDose-Response Relationship, DrugCell MembranePiperazinesReceptors, Adrenergic, betaMyocytes, CardiacRNA, MessengerCloning, MolecularCrystallography, X-RayCytosolRats, Sprague-DawleyChromatography, Ion ExchangeConserved SequenceModels, BiologicalCell LinePhosphoric Monoester HydrolasesPhosphorylationStructure-Activity RelationshipBiofilmsRats, WistarCalcium Channels, L-TypeDNA, ComplementaryMyocardial Contraction