1999
An important base triple anchors the substrate helix recognition surface within the Tetrahymena ribozyme active site
Szewczak A, Ortoleva-Donnelly L, Zivarts M, Oyelere A, Kazantsev A, Strobel S. An important base triple anchors the substrate helix recognition surface within the Tetrahymena ribozyme active site. Proceedings Of The National Academy Of Sciences Of The United States Of America 1999, 96: 11183-11188. PMID: 10500151, PMCID: PMC18008, DOI: 10.1073/pnas.96.20.11183.Peer-Reviewed Original ResearchConceptsHelix dockingBase triplesRecognition surfaceGroup I intronActive siteNetwork of interactionsTetrahymena group IP3 helixStructural biologySubstrate bindingI intronCatalytic RNAProduct bindingSuppression analysisFunctional importanceRNA foldingRNA constructsSubstrate helixBiochemical evidenceMutant ribozymesRibozyme active siteSubstantial rearrangementHelixCrystallographic modelRibozyme
1998
A specific monovalent metal ion integral to the AA platform of the RNA tetraloop receptor
Basu S, P. Rambo R, Strauss-Soukup J, H.Cate J, R. Ferré-D´Amaré A, Strobel S, Doudna J. A specific monovalent metal ion integral to the AA platform of the RNA tetraloop receptor. Nature Structural & Molecular Biology 1998, 5: 986-992. PMID: 9808044, DOI: 10.1038/2960.Peer-Reviewed Original ResearchConceptsP4-P6 domainTetraloop receptorCatalytic RNALarge catalytic RNAsGroup I intronRNA tertiary structure formationTertiary structure formationTertiary structural motifsI intronRNAWide diversityFoldingStructural motifsDivalent metal ionsPotassium ionsReceptorsIntronsAzoarcusDomainDiversityMotifSitesActivityMonovalent ionsRibozyme chemogenetics
Strobel S. Ribozyme chemogenetics. Biopolymers 1998, 48: 65-81. PMID: 9846125, DOI: 10.1002/(sici)1097-0282(1998)48:1<65::aid-bip7>3.0.co;2-d.Peer-Reviewed Original ResearchConceptsHelix-helix packing interactionsDNA-protein interactionsLarge catalytic RNAsSingle-site substitutionsRibozyme catalytic coreTetrahymena group ICatalytic coreTertiary hydrogen bondsCatalytic RNAGenetic revertantsReceptor motifRibozyme functionPacking interactionsChemogenetic approachChemical correlatesReview ISuppressorGenetic analogyRevertantsTriple helixChemical basisNucleotide analoguesModification experimentsMutagenesisRNA