2021
The regulation of DNA supercoiling across evolution
Duprey A, Groisman EA. The regulation of DNA supercoiling across evolution. Protein Science 2021, 30: 2042-2056. PMID: 34398513, PMCID: PMC8442966, DOI: 10.1002/pro.4171.Peer-Reviewed Original ResearchMeSH KeywordsArchaeaBacteriaDNA ReplicationDNA, ArchaealDNA, BacterialDNA, SuperhelicalEvolution, MolecularConceptsDomains of lifeDNA supercoilingCellular processesAbnormal DNA replicationCertain cellular processesActivity of topoisomerasesChromosome replicationGlobal supercoilingNegative supercoilsDNA replicationBiological questionsSupercoilingEukaryotic topoisomerasesTopoisomerasesSupercoilsSignificant therapeutic potentialOrganismsHelix structureBacteriaPhysicochemical factorsRegulationDouble helix structureReplicationUnique strategyArchaea
2020
DNA supercoiling differences in bacteria result from disparate DNA gyrase activation by polyamines
Duprey A, Groisman EA. DNA supercoiling differences in bacteria result from disparate DNA gyrase activation by polyamines. PLOS Genetics 2020, 16: e1009085. PMID: 33125364, PMCID: PMC7598504, DOI: 10.1371/journal.pgen.1009085.Peer-Reviewed Original ResearchMeSH KeywordsDNA GyraseDNA Topoisomerases, Type IDNA, SuperhelicalEscherichia coliMagnesiumPutrescineSalmonella typhimuriumSpermidineConceptsE. coli enzymeDNA supercoilingColi enzymeDNA supercoiling resultsGlobal DNA supercoilingDNA gyraseSignal transduction pathwaysAmino acid identityDNA gyrase activityE. coliSpecies Escherichia coliSalmonella enterica serovar TyphimuriumEnterica serovar TyphimuriumAcid identityTransduction pathwaysPrecursor putrescineGyrase activitySupercoilingHigh extracellular Mg2DNA gyrasesPolyamines spermidineEscherichia coliTopoisomerase ISerovar TyphimuriumDisparate activationFEDS: a Novel Fluorescence-Based High-Throughput Method for Measuring DNA Supercoiling In Vivo
Duprey A, Groisman EA. FEDS: a Novel Fluorescence-Based High-Throughput Method for Measuring DNA Supercoiling In Vivo. MBio 2020, 11: 10.1128/mbio.01053-20. PMID: 32723920, PMCID: PMC7387798, DOI: 10.1128/mbio.01053-20.Peer-Reviewed Original ResearchConceptsDNA supercoilingFluorescent proteinDNA supercoiling resultsBacterial DNA supercoilingSingle-cell heterogeneityGreen fluorescent proteinRed fluorescent proteinCellular physiologyDNA processesHigh-throughput methodConstitutive promoterNovel regulatorNucleotide sequenceGenetic informationRegulatory loopHigh-throughput measurementsSupercoilingForms of lifeGenesSingle cellsTranscriptionPromoterProteinChemical supportNovel fluorescence