2012
Allosteric activation of exopolysaccharide synthesis through cyclic di‐GMP‐stimulated protein–protein interaction
Steiner S, Lori C, Boehm A, Jenal U. Allosteric activation of exopolysaccharide synthesis through cyclic di‐GMP‐stimulated protein–protein interaction. The EMBO Journal 2012, 32: 354-368. PMID: 23202856, PMCID: PMC3567491, DOI: 10.1038/emboj.2012.315.Peer-Reviewed Original ResearchConceptsProtein-protein interactionsSecond messenger cInner membrane componentsEscherichia coli biofilmsGMP receptorGMP signalingGMP bindsSynthesis machineryExtracellular matrix componentsMajor extracellular matrix componentsAllosteric activationExopolysaccharide synthesisExopolysaccharide matrixMembrane componentsColi biofilmsGlycosyltransferase activityBacterial pathogensMachineryN-acetylglucosaminePathogenic bacteriaMatrix componentsEnzyme activityGMP concentrationGMPBacteria
2009
Second messenger signalling governs Escherichia coli biofilm induction upon ribosomal stress
Boehm A, Steiner S, Zaehringer F, Casanova A, Hamburger F, Ritz D, Keck W, Ackermann M, Schirmer T, Jenal U. Second messenger signalling governs Escherichia coli biofilm induction upon ribosomal stress. Molecular Microbiology 2009, 72: 1500-1516. PMID: 19460094, DOI: 10.1111/j.1365-2958.2009.06739.x.Peer-Reviewed Original ResearchMeSH KeywordsAdhesins, BacterialAnti-Bacterial AgentsBeta-GlucansBiofilmsCyclic GMPEscherichia coliEscherichia coli ProteinsGene Expression Regulation, BacterialGuanosine TetraphosphatePhosphorus-Oxygen LyasesProtein BiosynthesisPyrophosphatasesRibosomesRNA Processing, Post-TranscriptionalSecond Messenger SystemsConceptsBiofilm inductionRibosome-targeting antibioticsNovel regulatory mechanismSecond messenger signalingSpecific derepressionBiosynthesis machineryRibosomal stressTranslational stressTranslation inhibitorsPpGpp levelsExposure of bacteriaMicrobial cellsRegulatory mechanismsAdhesin productionPolysaccharide adhesinBiofilm formationPpGppImportant synergistic roleMaximal inductionBiofilm controlMachineryBiofilm modelInductionGMPSubinhibitory concentrations