2024
Chaperone Hsp70 helps Salmonella survive infection-relevant stress by reducing protein synthesis
Chan C, Groisman E. Chaperone Hsp70 helps Salmonella survive infection-relevant stress by reducing protein synthesis. PLOS Biology 2024, 22: e3002560. PMID: 38574172, PMCID: PMC10994381, DOI: 10.1371/journal.pbio.3002560.Peer-Reviewed Original ResearchConceptsRibosome associationProtein synthesisProtein homeostasisS. typhimuriumProtein folding capacityPreventing protein aggregationC-terminal amino acidsDomains of lifeProtein synthesis in vitroInhibit protein synthesisFolding capacityHsp70 chaperonesJ-domainSynthesis in vitroProtein foldingReduction of protein synthesisChaperone Hsp70DnaKRibosomeProtein aggregationChaperoneAmino acidsProteinStarvationHSP70
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 ResearchConceptsDomains of lifeDNA supercoilingCellular processesAbnormal DNA replicationCertain cellular processesActivity of topoisomerasesChromosome replicationGlobal supercoilingNegative supercoilsDNA replicationBiological questionsSupercoilingEukaryotic topoisomerasesTopoisomerasesSupercoilsSignificant therapeutic potentialOrganismsHelix structureBacteriaPhysicochemical factorsRegulationDouble helix structureReplicationUnique strategyArchaea
2016
Multiple Signals Govern Utilization of a Polysaccharide in the Gut Bacterium Bacteroides thetaiotaomicron
Schwalm ND, Townsend GE, Groisman EA. Multiple Signals Govern Utilization of a Polysaccharide in the Gut Bacterium Bacteroides thetaiotaomicron. MBio 2016, 7: 10.1128/mbio.01342-16. PMID: 27729509, PMCID: PMC5061871, DOI: 10.1128/mbio.01342-16.Peer-Reviewed Original ResearchConceptsMammalian gut microbiotaPolysaccharide utilization genesUtilization genesHost dietGut symbiont Bacteroides thetaiotaomicronComplex polysaccharidesBacteroides thetaiotaomicronPleiotropic transcriptional regulatorDomains of lifeSubset of organismsRegulatory paradigmCritical nutrient sourceTranscriptional activatorTranscriptional regulatorsTranscriptional repressorCentral metabolismGenomic analysisMammalian gutMammalian hostsRegulatory architectureGut BacteroidesPolymeric fructanGut microbiotaGut bacteriumPolysaccharide breakdown