2013
Prechemistry Nucleotide Selection Checkpoints in the Reaction Pathway of DNA Polymerase I and Roles of Glu710 and Tyr766
Bermek O, Grindley N, Joyce C. Prechemistry Nucleotide Selection Checkpoints in the Reaction Pathway of DNA Polymerase I and Roles of Glu710 and Tyr766. Biochemistry 2013, 52: 6258-6274. PMID: 23937394, PMCID: PMC3770053, DOI: 10.1021/bi400837k.Peer-Reviewed Original ResearchConceptsFidelity checkpointDNA polymerase IPolymerase IHigh-fidelity DNA polymeraseMutator allelesCheckpoint functionMutator polymeraseIncorrect base pairsSelection checkpointDNA templateConformational changesSubstrate poolBase pairsDNA polymeraseComplementary nucleotidesCheckpointNoncomplementary nucleotidesTemplating baseFinger closingPolymeraseDNTPsNucleotidesCorrect incomingPathwayWeak bindingConformational landscapes of DNA polymerase I and mutator derivatives establish fidelity checkpoints for nucleotide insertion
Hohlbein J, Aigrain L, Craggs T, Bermek O, Potapova O, Shoolizadeh P, Grindley N, Joyce C, Kapanidis A. Conformational landscapes of DNA polymerase I and mutator derivatives establish fidelity checkpoints for nucleotide insertion. Nature Communications 2013, 4: 2131. PMID: 23831915, PMCID: PMC3715850, DOI: 10.1038/ncomms3131.Peer-Reviewed Original ResearchConceptsClosed conformationDNA polymerase IIncorrect nucleotidesPolymerase ITernary complexSingle-molecule FRETActive site side chainsNucleotide selectionMutator phenotypeFidelity checkpointPrimary checkpointPhosphoryl transferFidelity mutantsConformational changesConformational landscapeDNA polymeraseNucleotide insertionConformational transitionDNA synthesisFRET valuesNucleotidesFree energy landscapeReduced affinityCheckpointConformation
1998
How E. coli DNA polymerase I (klenow fragment) distinguishes between deoxy- and dideoxynucleotides11Edited by A. R Fersht
Astatke M, Grindley N, Joyce C. How E. coli DNA polymerase I (klenow fragment) distinguishes between deoxy- and dideoxynucleotides11Edited by A. R Fersht. Journal Of Molecular Biology 1998, 278: 147-165. PMID: 9571040, DOI: 10.1006/jmbi.1998.1672.Peer-Reviewed Original ResearchConceptsMutant derivativesWild-type Klenow fragmentKlenow fragmentTernary complexAmino acid residuesE. coli DNA polymerase IIncorporation of dNTPsDNA polymerase IDNTP ternary complexPolymerase IAcid residuesPhosphoryl transferState kinetic parametersConformational changesNatural substratePositions 762DNA polymeraseEnzyme DNAKlenow fragment DNA polymeraseDNTPsIncoming dNTPDNTPSide chain resultsRibose moietyDideoxynucleotides