GuanineAlkylationGuanine NucleotidesGuanine Nucleotide Exchange FactorsAlkylating AgentsEstrogenic Steroids, AlkylatedGuanine DeaminasePropiolactoneIodoacetamideDNA GlycosylasesApurinic AcidO(6)-Methylguanine-DNA MethyltransferaseN-Glycosyl HydrolasesGuanosine TriphosphateAdenineRho Guanine Nucleotide Exchange FactorsDNACysteineKineticsDNA RepairGuanosine DiphosphateMolecular Sequence DataGTP-Binding ProteinsImino SugarsAmino Acid SequenceMethyl Methanesulfonateras Guanine Nucleotide Exchange FactorsDisulfidesDNA AdductsIodoacetatesChromatography, High Pressure LiquidBinding SitesMethylnitrosoureaEscherichia coliBase SequenceMethylnitronitrosoguanidineMethyltransferasesProtein BindingGuanylyl ImidodiphosphateMustard CompoundsNitrosourea CompoundsStructure-Activity RelationshipPurinesGuanosine 5'-O-(3-Thiotriphosphate)EthylnitrosoureaSulfuric Acid EstersOxidation-ReductionMolecular WeightAmino AcidsChemistryMolecular StructureGuanosineChemical PhenomenaTrypsinMacromolecular SubstancesModels, MolecularPeptide FragmentsDNA DamageThymineNitrogen Mustard CompoundsProtein ConformationGuanosine MonophosphateMutationElectrophoresis, Polyacrylamide GelGuanine Nucleotide Dissociation InhibitorsEpoxy CompoundsMesylatesSpectrophotometry, Ultraviolet1-DeoxynojirimycinSerum GlobulinsSubstrate SpecificityCytosineAffinity LabelsThionucleotidesSulfhydryl CompoundsMethylationCattleGuanine Nucleotide-Releasing Factor 2ADP-Ribosylation FactorsNucleic Acid ConformationCell LineEthylmaleimideMyeloma ProteinsMicrococcusGTP PhosphohydrolasesHypoxanthine PhosphoribosyltransferaseCircular DichroismOligodeoxyribonucleotidesChromatography, GelCyanogen BromideOligonucleotidesMagnetic Resonance SpectroscopyCatalysisHydrogen-Ion ConcentrationMass SpectrometryVirulence Factors, BordetellaStereoisomerismIMP DehydrogenaseProto-Oncogene Proteins c-vavMechlorethamine