2005
A specific subdomain in φ29 DNA polymerase confers both processivity and strand-displacement capacity
Rodríguez I, Lázaro JM, Blanco L, Kamtekar S, Berman AJ, Wang J, Steitz TA, Salas M, de Vega M. A specific subdomain in φ29 DNA polymerase confers both processivity and strand-displacement capacity. Proceedings Of The National Academy Of Sciences Of The United States Of America 2005, 102: 6407-6412. PMID: 15845765, PMCID: PMC1088371, DOI: 10.1073/pnas.0500597102.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceBacteriophage T4DNADNA PrimersDNA ReplicationDNA-Directed DNA PolymeraseElectrophoretic Mobility Shift AssayExodeoxyribonucleasesModels, MolecularMolecular Sequence DataMutagenesis, Site-DirectedProtein ConformationProtein Structure, TertiarySequence AlignmentTemplates, GeneticConceptsDNA polymerasePhi29 DNA polymeraseProtein-primed DNA polymerasesStrand-displacement capacityMutant DNA polymerasesΦ29 DNA polymeraseRecent crystallographic studiesDNA binding capacityAsp-398Deletion mutantsStructural insightsSpecific insertionProcessivityPolymeraseStrand displacementFunctional roleAmino acidsPalm subdomainSpecific subdomainsBiochemical analysisDNA synthesisCritical roleRegion 2Crystallographic studiesIntrinsic capacity
2004
Pre-Steady-State Kinetics of RB69 DNA Polymerase and Its Exo Domain Mutants: Effect of pH and Thiophosphoryl Linkages on 3‘−5‘ Exonuclease Activity †
Wang C, Zakharova E, Li J, Joyce C, Wang J, Konigsberg W. Pre-Steady-State Kinetics of RB69 DNA Polymerase and Its Exo Domain Mutants: Effect of pH and Thiophosphoryl Linkages on 3‘−5‘ Exonuclease Activity †. Biochemistry 2004, 43: 3853-3861. PMID: 15049692, DOI: 10.1021/bi0302292.Peer-Reviewed Original ResearchMeSH KeywordsAlanineAmino Acid SubstitutionBacteriophage T4Base Pair MismatchDNA Polymerase IDNA-Directed DNA PolymeraseEnzyme ActivationExodeoxyribonucleasesGlutamineHydrogen-Ion ConcentrationKineticsMutagenesis, Site-DirectedPhosphatesPhosphorylationProtein Structure, TertiaryRNA EditingSubstrate SpecificityT-PhagesThionucleotidesViral ProteinsConceptsRate-determining stepDivalent metal ionsPH-activity profileB family replicative DNA polymerasesChemical stepMetal ionsSingle-turnover conditionsWild-type enzymeEffects of pHKlenow fragmentB-family DNA polymerasesFamily DNA polymerasesState kineticsDNA polymeraseThree-dimensional structureDomain mutantsExonuclease reactionExonuclease activityPhosphorothioate linkagesPhi29 DNA polymeraseElemental effectsReplicative DNA polymerasesRepair DNA polymerasesExo activityCatalysis
1996
Crystal Structures of an NH2-Terminal Fragment of T4 DNA Polymerase and Its Complexes with Single-Stranded DNA and with Divalent Metal Ions †
Wang J, Yu P, Lin T, Konigsberg W, Steitz T. Crystal Structures of an NH2-Terminal Fragment of T4 DNA Polymerase and Its Complexes with Single-Stranded DNA and with Divalent Metal Ions †. Biochemistry 1996, 35: 8110-8119. PMID: 8679562, DOI: 10.1021/bi960178r.Peer-Reviewed Original ResearchConceptsT4 DNA polymeraseDNA polymeraseExonuclease domainKlenow fragmentExonuclease active siteActive site regionCrystallographic R-factorTranslational regulationMinimal sequence identityMetal ion cofactorsSequence identityActive siteNH2-terminal fragmentNH2-terminalSite regionDivalent metal ion cofactorCarboxylate residuesPolymeraseIon cofactorScissile phosphateEquivalent positionsResidue formsProteinSeparate domainsCrystal structure