2019
Structural Basis for Target-Directed MicroRNA Degradation
Sheu-Gruttadauria J, Pawlica P, Klum SM, Wang S, Yario TA, Schirle Oakdale NT, Steitz JA, MacRae IJ. Structural Basis for Target-Directed MicroRNA Degradation. Molecular Cell 2019, 75: 1243-1255.e7. PMID: 31353209, PMCID: PMC6754277, DOI: 10.1016/j.molcel.2019.06.019.Peer-Reviewed Original ResearchConceptsTarget-directed miRNA degradationMiRNA 3' endMicroRNA degradationMiRNA degradationHuman Ago2MiRNA activityMiRNA stabilityStructural basisGene expressionTarget RNALinker flexibilityMiRNAsEnd displaysFlexible linkerRNAKey determinantArgonauteHAgo2Enzymatic attackAgo2DegradationDuplexMicroRNAsMiRNAIsoformsHow Complementary Targets Expose the microRNA 3′ End for Tailing and Trimming during Target-Directed microRNA Degradation
Pawlica P, Sheu-Gruttadauria J, MacRae IJ, Steitz JA. How Complementary Targets Expose the microRNA 3′ End for Tailing and Trimming during Target-Directed microRNA Degradation. Cold Spring Harbor Symposia On Quantitative Biology 2019, 84: 039321. PMID: 32019864, PMCID: PMC9161719, DOI: 10.1101/sqb.2019.84.039321.Peer-Reviewed Original ResearchTarget-directed miRNA degradationMiRNA 3' endCellular enzymesMiRNA seed sequencesMiRNA complementarityMiRNA decayArgonaute proteinsMicroRNA degradationMiRNA degradationMiRNA 5Posttranscriptional regulationMiRNA targetsCertain transcriptsSeed sequenceExtensive complementarityMolecular mechanismsMessenger RNATranscriptsEnzymeRegulationEnzymatic attackRecent advancesTargetMicroRNAsRNA
2016
Host miRNA degradation by Herpesvirus saimiri small nuclear RNA requires an unstructured interacting region
Pawlica P, Moss WN, Steitz JA. Host miRNA degradation by Herpesvirus saimiri small nuclear RNA requires an unstructured interacting region. RNA 2016, 22: 1181-1189. PMID: 27335146, PMCID: PMC4931111, DOI: 10.1261/rna.054817.115.Peer-Reviewed Original ResearchConceptsSmall nuclear RNAMiR-27Nuclear RNAVivo secondary structureBioinformatic structural analysisBinding site sequenceMiRNA degradationU RNARNA functionMutagenic analysisHSUR1Interacting regionsSite sequenceHost microRNAsSecondary structureHerpesvirus saimiriT cell activationOncogenic herpesvirusRNAStructural flexibilityDecreased levelsMutantsStructural analysisDegradationMicroRNAs