2023
In vitro Selection and in vivo Testing of Riboswitch-inspired Aptamers
Mohsen M, Breaker R. In vitro Selection and in vivo Testing of Riboswitch-inspired Aptamers. Bio-protocol 2023, 13: e4775. PMID: 37456339, PMCID: PMC10338711, DOI: 10.21769/bioprotoc.4775.Peer-Reviewed Original ResearchAptamer candidatesSubsequent biochemical validationComplex cellular environmentVitro selection protocolSelfish sequencesRiboswitch aptamerNext-generation sequencingRNA poolBacterial cell cultureExpression platformCellular environmentBacterial cellsBiochemical validationStructural scaffoldLigand candidatesCell culturesSelection protocolAptamerRiboswitchNew ligandsSelectionBioinformaticsSequencingScaffold typesSequenceExploiting natural riboswitches for aptamer engineering and validation
Mohsen M, Midy M, Balaji A, Breaker R. Exploiting natural riboswitches for aptamer engineering and validation. Nucleic Acids Research 2023, 51: 966-981. PMID: 36617976, PMCID: PMC9881172, DOI: 10.1093/nar/gkac1218.Peer-Reviewed Original ResearchConceptsNatural riboswitchesRiboswitch aptamerReporter gene expressionSecondary structure featuresRNA poolExpression platformVivo functionGene expressionSurvival mechanismRNA sequencesStructural featuresRiboswitchAptamer selectionSmall moleculesSequenceAptamerCellsGuanineTest tubeFuture effortsSelectionSelection strategyExpressionPoolAptamer engineering
1997
Examination of the catalytic fitness of the hammerhead ribozyme by in vitro selection.
Tang J, Breaker R. Examination of the catalytic fitness of the hammerhead ribozyme by in vitro selection. RNA 1997, 3: 914-25. PMID: 9257650, PMCID: PMC1369536.Peer-Reviewed Original ResearchConceptsConsensus sequenceATP-binding RNA aptamerCatalytic fitnessHammerhead ribozymeAbsence of ATPRNA poolAllosteric ribozymesVitro SelectionRNA aptamersCatalytic functionSequence variantsAllosteric interactionsCombinatorial poolsRibozymeTranscriptionATPRNACatalytic rateSequenceHammerhead domainRibozyme constructsFitnessAllosteric delayPoolSimilar strategies
1994
A DNA enzyme that cleaves RNA
Breaker R, Joyce G. A DNA enzyme that cleaves RNA. Cell Chemical Biology 1994, 1: 223-229. PMID: 9383394, DOI: 10.1016/1074-5521(94)90014-0.Peer-Reviewed Original ResearchConceptsDNA enzymeRNA enzymeDependent cleavageSimilarity of DNATypes of RNACatalytic domainDNA sequencesRandom nucleotidesRapid turnoverRNASuccessive roundsEnzymeDNACatalytic rateSelective amplificationBiological systemsTurnover rateSequenceCleavageIntermolecular contextNucleotidesPopulationTurnoverPhosphoestersEmergence of a replicating species from an in vitro RNA evolution reaction.
Breaker R, Joyce G. Emergence of a replicating species from an in vitro RNA evolution reaction. Proceedings Of The National Academy Of Sciences Of The United States Of America 1994, 91: 6093-6097. PMID: 7517040, PMCID: PMC44144, DOI: 10.1073/pnas.91.13.6093.Peer-Reviewed Original ResearchConceptsRNA polymeraseDNA-dependent RNA polymeraseRNA polymerase promoter sequencePromoter sequencesEvolution experimentsRNA moleculesAcid sequenceRNA transcriptsSpecific nucleic acid sequencesTarget chemical reactionNucleic acid sequencesRNA replicationPolymeraseRNADNAReverse transcriptaseSelective amplificationDNA hairpinsSequence replicationChemical reactionsUnique classReplicationSequenceTranscriptaseParticular chemical reaction