2004
Relationship between Antiviral Activity and Host Toxicity: Comparison of the Incorporation Efficiencies of 2′,3′-Dideoxy-5-Fluoro-3′-Thiacytidine-Triphosphate Analogs by Human Immunodeficiency Virus Type 1 Reverse Transcriptase and Human Mitochondrial DNA Polymerase
Feng J, Murakami E, Zorca S, Johnson A, Johnson K, Schinazi R, Furman P, Anderson K. Relationship between Antiviral Activity and Host Toxicity: Comparison of the Incorporation Efficiencies of 2′,3′-Dideoxy-5-Fluoro-3′-Thiacytidine-Triphosphate Analogs by Human Immunodeficiency Virus Type 1 Reverse Transcriptase and Human Mitochondrial DNA Polymerase. Antimicrobial Agents And Chemotherapy 2004, 48: 1300-1306. PMID: 15047533, PMCID: PMC375312, DOI: 10.1128/aac.48.4.1300-1306.2004.Peer-Reviewed Original ResearchConceptsHuman mitochondrial DNA polymeraseMitochondrial DNA polymeraseDNA-DNAPolymerase gammaHuman immunodeficiency virusDNA polymerasePrimer-templateHuman mitochondrial DNA polymerase gammaPre-steady-state kinetic analysisMitochondrial DNA polymerase gammaDNA polymerase gammaMolecular mechanism of inhibitionHIV-1Treatment of human immunodeficiency virusExonuclease activityDNA-RNAReverse transcriptaseFood and Drug AdministrationClinical trial studyMolecular mechanismsMechanism of inhibitionHuman immunodeficiency virus type 1 reverse transcriptaseEnzymatic assayImmunodeficiency virusPolymerase
2003
Characterization of Novel Reverse Transcriptase and Other RNA-associated Catalytic Activities by Human DNA Polymerase γ IMPORTANCE IN MITOCHONDRIAL DNA REPLICATION*
Murakami E, Feng J, Lee H, Hanes J, Johnson K, Anderson K. Characterization of Novel Reverse Transcriptase and Other RNA-associated Catalytic Activities by Human DNA Polymerase γ IMPORTANCE IN MITOCHONDRIAL DNA REPLICATION*. Journal Of Biological Chemistry 2003, 278: 36403-36409. PMID: 12857740, DOI: 10.1074/jbc.m306236200.Peer-Reviewed Original ResearchConceptsMtDNA genomeMtDNA replicationPol gammaInitiation of mtDNA replicationRNA-primed DNA synthesisHuman mitochondrial DNA polymeraseMitochondrial DNA polymeraseReverse transcriptionDNA synthesis activityPhysiologically relevant ratesMitochondrial DNARibonucleotide incorporationProofreading activitySingle ribonucleotidesHeteroduplex intermediatesRibonucleotide triphosphatesRNA templateDNA primersDNA polymeraseReverse transcriptaseDNA excisionMtDNAAccessory subunitsDNA synthesisEnzymatic pathways
2001
Insights into the Molecular Mechanism of Mitochondrial Toxicity by AIDS Drugs*
Feng J, Johnson A, Johnson K, Anderson K. Insights into the Molecular Mechanism of Mitochondrial Toxicity by AIDS Drugs*. Journal Of Biological Chemistry 2001, 276: 23832-23837. PMID: 11328813, DOI: 10.1074/jbc.m101156200.Peer-Reviewed Original ResearchMeSH KeywordsAcquired Immunodeficiency SyndromeAnti-HIV AgentsCytidine TriphosphateDeoxycytosine NucleotidesDideoxynucleotidesDNADNA Polymerase gammaDNA ReplicationDNA-Directed DNA PolymeraseDNA, MitochondrialExodeoxyribonucleasesHumansKineticsLamivudineMitochondriaNucleic Acid Synthesis InhibitorsReverse Transcriptase InhibitorsZalcitabineConceptsPol gammaHuman mitochondrial DNA polymeraseHuman pol gammaMitochondrial DNA replicationMitochondrial DNA polymeraseToxicity of nucleoside analogsCytosine analogsMechanism of mitochondrial toxicityExonuclease activityDNA primersDNA replicationDNA polymeraseNucleoside analogsRate of excisionStructure/function relationshipsMolecular mechanismsLong-term administrationToxic inhibitorsExonucleaseTreatment of AIDSPolymeraseClinical toxicityMitochondrial toxicityDNAPolY265H Mutator Mutant of DNA Polymerase β PROPER GEOMETRIC ALIGNMENT IS CRITICAL FOR FIDELITY*
Shah A, Li S, Anderson K, Sweasy J. Y265H Mutator Mutant of DNA Polymerase β PROPER GEOMETRIC ALIGNMENT IS CRITICAL FOR FIDELITY*. Journal Of Biological Chemistry 2001, 276: 10824-10831. PMID: 11154692, DOI: 10.1074/jbc.m008680200.Peer-Reviewed Original ResearchConceptsDNA polymerase betaPolymerase betaVivo genetic screenWild-type proteinWild-type enzymeActive site residuesGenetic screenTyr-265Mutant proteinsMutator mutantsPolymerase structureProper geometric alignmentSite residuesProtein conformationNucleotidyl transferForward mutationDNA polymerasePolymerase fidelityDNTP substratesDNA synthesisProteinDeoxynucleoside triphosphatesFirst evidenceTemplate A.Enzyme