2023
Infection leaves a genetic and functional mark on the gut population of a commensal bacterium
Tawk C, Lim B, Bencivenga-Barry N, Lees H, Ramos R, Cross J, Goodman A. Infection leaves a genetic and functional mark on the gut population of a commensal bacterium. Cell Host & Microbe 2023, 31: 811-826.e6. PMID: 37119822, PMCID: PMC10197903, DOI: 10.1016/j.chom.2023.04.005.Peer-Reviewed Original ResearchConceptsRapid genetic adaptationSingle nucleotide variantsMultiple phylaGenetic adaptationFunctional marksStable marksEnteric infectionsGene expressionPopulation dynamicsGut commensalsCommensal populationsMicrobiome compositionAbsence of infectionRapid selectionCitrobacter rodentiumFitnessGut populationsCommensal bacteriumInfected miceGastrointestinal infectionsGnotobiotic miceCommensalGut lumenDirect administrationVitamin B6
2017
Engineered Regulatory Systems Modulate Gene Expression of Human Commensals in the Gut
Lim B, Zimmermann M, Barry NA, Goodman AL. Engineered Regulatory Systems Modulate Gene Expression of Human Commensals in the Gut. Cell 2017, 169: 547-558.e15. PMID: 28431252, PMCID: PMC5532740, DOI: 10.1016/j.cell.2017.03.045.Peer-Reviewed Original ResearchConceptsGene expressionModulate gene expressionAbsence of inducerCommunity assemblyAddition of inducerGenetic toolsInducible promoterGene productsExpression platformHost physiologyPromoter activityHuman commensalGenus BacteroidesSynthetic inducersGut anaerobesInducerSialidase activityExpressionNumerous aspectsGut microbiotaSialic acidGutPromoterValuable toolCommensal