PurinesPurine NucleotidesPurine NucleosidesPurine-Nucleoside PhosphorylaseHypoxanthineHypoxanthinesInosinePentosyltransferasesAdeninePhosphoribosyl PyrophosphatePyrimidine NucleotidesGuanosineInosine MonophosphateBase SequenceGuanineMolecular Sequence DataAmidophosphoribosyltransferaseHypoxanthine PhosphoribosyltransferasePurine-Pyrimidine Metabolism, Inborn ErrorsMethylthioinosineNucleosidesBase PairingRibosemonophosphatesAdenosinePhosphoribosylglycinamide FormyltransferaseNucleic Acid ConformationHydroxymethyl and Formyl TransferasesDNAXanthineAdenine PhosphoribosyltransferaseAdenylosuccinate LyasePyrimidine NucleosidesAdenosine DeaminaseDeoxyadenosinesNucleotidesPhosphoribosylaminoimidazolecarboxamide FormyltransferaseNucleobase Transport ProteinsRibose-Phosphate PyrophosphokinaseLesch-Nyhan SyndromeKineticsXanthinesRibonucleosidesRibonucleotidesInosine NucleotidesAdenylosuccinate SynthaseAzaserineAllantoinGuanosine MonophosphateUric AcidAzaguaninePentosephosphatesEscherichia coliAmino Acid SequenceMutationFormycinsAdenine NucleotidesPyrimidinesAdenosine MonophosphateModels, MolecularCarbon-Nitrogen Ligases with Glutamine as Amide-N-DonorAdenosine TriphosphateBase CompositionDeoxyribonucleosidesSubstrate SpecificityBinding SitesNucleoside Transport ProteinsXanthine DehydrogenaseCloning, MolecularAdenosine KinaseAdenosine Deaminase InhibitorsNucleotidasesThionucleosidesBase Pair MismatchPair BondIMP DehydrogenaseCladribineCarbon-Nitrogen LigasesFormates5'-NucleotidasePentostatinHydrogen BondingReceptors, PurinergicOligodeoxyribonucleotidesDeoxyguanosineTubercidin2-AminopurineDeoxyguanine NucleotidesStructure-Activity RelationshipAminohydrolasesNucleotide DeaminasesThioguanineTwins, MonozygoticGuanine NucleotidesTranscription, GeneticMolecular StructureOligonucleotidesRNAN-Glycosyl HydrolasesUridineThioinosine