2024
Bioinformatic prediction of proteins relevant to functions of the bacterial OLE ribonucleoprotein complex
Fernando C, Breaker R. Bioinformatic prediction of proteins relevant to functions of the bacterial OLE ribonucleoprotein complex. MSphere 2024, 9: e00159-24. PMID: 38771028, PMCID: PMC11332333, DOI: 10.1128/msphere.00159-24.Peer-Reviewed Original ResearchOLE RNANoncoding RNA classesRNP complexesRNA classesSequence conservationProtein partnersBiochemical functionsDiverse stress conditionsProtein binding partnersEmergence of proteinsPhylogenetic profilesRibonucleoprotein complexSpore formationBacterial speciesCellular stressExtremophilic bacteriaProtein componentsRibonucleoproteinGenetic disruptionRNATransport proteinsRelevant to functionBioinformatics predictionGram-positivePrimitive organismsThe discovery of novel noncoding RNAs in 50 bacterial genomes
Narunsky A, Higgs G, Torres B, Yu D, de Andrade G, Kavita K, Breaker R. The discovery of novel noncoding RNAs in 50 bacterial genomes. Nucleic Acids Research 2024, 52: 5152-5165. PMID: 38647067, PMCID: PMC11109978, DOI: 10.1093/nar/gkae248.Peer-Reviewed Original ResearchBacterial genomesDomains of lifeIntergenic regionNcRNA classesGC-rich intergenic regionsBacterial domain of lifeIndividual bacterial genomesStructured noncoding RNAsNovel noncoding RNAsProtein coding genesNoncoding RNAsNcRNA motifsRiboswitch candidatesBacterial domainRiboswitch classesCoding genesGene regulationCellular processesCytidine nucleotidesBacterial speciesGenomeComputational pipelineNcRNAsDiverse functionsGenesGenetic disruption of the bacterial raiA motif noncoding RNA causes defects in sporulation and aggregation
Soares L, King C, Fernando C, Roth A, Breaker R. Genetic disruption of the bacterial raiA motif noncoding RNA causes defects in sporulation and aggregation. Proceedings Of The National Academy Of Sciences Of The United States Of America 2024, 121: e2318008121. PMID: 38306478, PMCID: PMC10861870, DOI: 10.1073/pnas.2318008121.Peer-Reviewed Original ResearchConceptsMotif RNAsGenetic disruptionSecondary structure modelKnock-out strainTrans-acting factorsNoncoding RNAsCell differentiation processAbundant RNATransfer RNANcRNA classesRibosomal RNASpore formationMotif genesCellular processesBacterial speciesCellular functionsBioinformatics analysisExpression analysisMotifRNAGenesBiochemical mechanismsNcRNAsDifferentiation processStructural probes
2023
Evidence that OLE RNA is a component of a major stress‐responsive ribonucleoprotein particle in extremophilic bacteria
Breaker R, Harris K, Lyon S, Wencker F, Fernando C. Evidence that OLE RNA is a component of a major stress‐responsive ribonucleoprotein particle in extremophilic bacteria. Molecular Microbiology 2023, 120: 324-340. PMID: 37469248, DOI: 10.1111/mmi.15129.Peer-Reviewed Original ResearchConceptsOLE RNAPrecise biochemical functionFundamental cellular processesCell growthTOR complexesProtein partnersRibonucleoprotein complexesCellular processesRNP complexesBiochemical functionsGram-positive bacteriaNoncoding RNAsRibonucleoprotein particleExtremophilic bacteriaBacterial speciesGenetic disruptionStress conditionsDiverse pathwaysRNAMetabolic adaptationCell membraneExtreme environmentsCarbon sourceBacteriaComplexesA conserved uORF in the ilvBNC mRNA of Corynebacterium species regulates ilv operon expression
Narunsky A, Kavita K, Panchapakesan S, Fris M, Breaker R. A conserved uORF in the ilvBNC mRNA of Corynebacterium species regulates ilv operon expression. Microbial Genomics 2023, 9: mgen001019. PMID: 37233150, PMCID: PMC10272879, DOI: 10.1099/mgen.0.001019.Peer-Reviewed Original ResearchConceptsBranched-chain amino acidsRNA motifsUpstream open reading framesTranscription attenuation mechanismStructured noncoding RNAsOpen reading frameRiboswitch classesTranscription attenuationProtein translationNoncoding RNAsOperon expressionGenetic approachesReading frameStart codonUORF translationStop codonBacterial speciesHost cellsGenesUORFsAmino acidsMotifCodonCommon mechanismCorynebacterium species
2022
Ornate, large, extremophilic (OLE) RNA forms a kink turn necessary for OapC protein recognition and RNA function
Lyon S, Harris K, Odzer N, Wilkins S, Breaker R. Ornate, large, extremophilic (OLE) RNA forms a kink turn necessary for OapC protein recognition and RNA function. Journal Of Biological Chemistry 2022, 298: 102674. PMID: 36336078, PMCID: PMC9723947, DOI: 10.1016/j.jbc.2022.102674.Peer-Reviewed Original ResearchConceptsOLE RNARNP complexesRNA-protein binding assaysPrecise biochemical functionRNA structural motifsInability of cellsNatural binding sitesRibonucleoprotein complexesRNA functionBiochemical functionsExhibit phenotypesBacterial proteinsK-turnKink turnBacillus haloduransDisruptive mutationsSame proteinBacterial speciesProtein recognitionAnaerobic bacterial speciesFunctional roleSecondary structureRNAProteinOapB
2008
Riboswitches in Eubacteria Sense the Second Messenger Cyclic Di-GMP
Sudarsan N, Lee E, Weinberg Z, Moy R, Kim J, Link K, Breaker R. Riboswitches in Eubacteria Sense the Second Messenger Cyclic Di-GMP. Science 2008, 321: 411-413. PMID: 18635805, PMCID: PMC5304454, DOI: 10.1126/science.1159519.Peer-Reviewed Original ResearchConceptsCyclic di-GMPVirulence gene expressionGene expressionSecond messenger cyclic di-GMPNumerous fundamental cellular processesCyclic di-guanosine monophosphateFundamental cellular processesExpression of genesGMP riboswitchRiboswitch classesFlagellum biosynthesisBiofilm lifestyleCellular processesDiverse speciesPilus formationSecond messengerCell differentiationRiboswitchBacterial speciesMessenger RNARNA dinucleotideSpeciesExpressionPhysiological changesRegulon
2006
Genetic control by riboswitches and ribozymes
Breaker R. Genetic control by riboswitches and ribozymes. The FASEB Journal 2006, 20: a455-a456. DOI: 10.1096/fasebj.20.4.a455-d.Peer-Reviewed Original ResearchGenetic switchGene expressionAptamer domainBacterial speciesCertain messenger RNAsControl gene expressionMessenger RNA stabilityNon-coding regionsComplex genetic elementsSelf-cleaving ribozymesRiboswitch classesReceptor-ligand interactionsTranscription elongationTranslation initiationRNA stabilityRNA transcriptionRiboswitchAllosteric changesGenetic controlGenetic elementsRNA structureMessenger RNATarget metabolitesRNARecent findings