PurinesPurine NucleotidesPhosphoribosylglycinamide FormyltransferaseHydroxymethyl and Formyl TransferasesPhosphoribosyl PyrophosphatePhosphoribosylaminoimidazolecarboxamide FormyltransferaseRibose-Phosphate PyrophosphokinaseRibosemonophosphatesHypoxanthinesHypoxanthineAmidophosphoribosyltransferaseAzaserineTetrahydrofolatesFormiminoglutamic AcidPurine-Nucleoside PhosphorylasePurine NucleosidesPentosephosphatesPurine-Pyrimidine Metabolism, Inborn ErrorsLesch-Nyhan SyndromePentosyltransferasesFormyltetrahydrofolatesInosine MonophosphateAdenylosuccinate LyaseFormatesFolic Acid AntagonistsHypoxanthine PhosphoribosyltransferaseThionucleosidesAdenine PhosphoribosyltransferasePolyglutamic AcidAdenineGlycineGuanineCarbon-Nitrogen LigasesPeptide SynthasesTrimetrexateKineticsRibonucleotidesGoutMethotrexateAcyltransferasesIMP DehydrogenaseLeukemia L1210Folic Acid6-MercaptopurineUric AcidAdenosine MonophosphateCell LineMutationThymidylate SynthaseCells, CulturedProtein BiosynthesisInosineCell DivisionFibroblastsMolecular Sequence DataLymphocytesAntimetabolites, AntineoplasticMolecular StructureDNAStereoisomerismBase SequenceEscherichia coliProtein Synthesis InhibitorsRNA, MessengerPyrimidine NucleotidesGuanosineTumor Cells, CulturedNucleosidesDNA ReplicationCycloheximideRNACarbon IsotopesTritiumTranscription, GeneticCyclizationAdenosineAmino Acid SequenceDeoxyadenosinesUridineLeucineMethylthioinosineBacterial ProteinsLiverAdenosine TriphosphateNucleotidesStructure-Activity RelationshipThymidineRibonucleosidesPyrimidine NucleosidesCell-Free SystemTime FactorsAmino AcidsDactinomycinMagnetic Resonance SpectroscopyPuromycinXanthineSubstrate SpecificityAdenine NucleotidesChemistry Techniques, SyntheticCatalysis