Cyclic GMPGuanosine MonophosphateGuanosineGMP ReductaseGuanylate CyclasePhosphodiesterase 5 InhibitorsNitric OxideAtrial Natriuretic Factor3',5'-Cyclic-GMP PhosphodiesterasesCyclic GMP-Dependent Protein KinasesPurinonesPurinesSulfonesGuanosine 5'-O-(3-Thiotriphosphate)Cyclic AMPNitroprussidePhosphodiesterase InhibitorsCyclic Nucleotide Phosphodiesterases, Type 5Methylene BlueDibutyryl Cyclic GMPGuanosine TriphosphateAmino Acyl-tRNA SynthetasesGlutamate-Ammonia Ligase8-Bromo Cyclic Adenosine MonophosphateCyclic Nucleotide Phosphodiesterases, Type 22',5'-Oligoadenylate SynthetaseNucleotides, CyclicNitric Oxide DonorsReceptors, Atrial Natriuretic FactorKineticsPhosphoric Diester HydrolasesPenisVerbenaceaePenile ErectionMuscle RelaxationNitric Oxide SynthaseSecond Messenger SystemsNelumboPiperazinesGuanosine TetraphosphateErectile DysfunctionAdenosine MonophosphateArgininePeptide SynthasesCyclic GMP-Dependent Protein Kinase Type ICoenzyme A LigasesGuanosine DiphosphateDose-Response Relationship, DrugInosine MonophosphateMolecular Sequence DataGuanine NucleotidesEscherichia coliAorta, ThoracicMuscle, Smooth, VascularCells, CulturedLigases1-Methyl-3-isobutylxanthineSignal TransductionVasodilator AgentsNatriuretic Peptide, C-TypeOxadiazolesPhosphorus-Oxygen LyasesEnzyme InhibitorsCarbon-Nitrogen LigasesNitritesRats, Sprague-DawleyAspartate-tRNA LigaseMethionine-tRNA LigaseTryptophan-tRNA LigaseCyclic Nucleotide Phosphodiesterases, Type 63',5'-Cyclic-AMP PhosphodiesterasesVasodilationS-Nitroso-N-AcetylpenicillamineFerricyanidesCytidine MonophosphateIMP Dehydrogenaseomega-N-MethylarginineIsoleucine-tRNA LigaseCitrullineEnzyme ActivationAspartate-Ammonia LigaseRabbitsNatriuresisBinding SitesPhenylalanine-tRNA LigaseTyrosine-tRNA LigaseRats, Inbred StrainsCarbamoyl-Phosphate Synthase (Ammonia)Amino Acid SequenceNG-Nitroarginine Methyl EsterLeucine-tRNA LigaseSerine-tRNA LigaseNatriuretic Peptide, BrainValine-tRNA LigaseNitric Oxide Synthase Type IIIBacterial ProteinsNitratesArgininosuccinate SynthaseAdenosine TriphosphateThionucleotides