1993
Mutations in the conserved loop of human U5 snRNA generate use of novel cryptic 5′ splice sites in vivo.
Cortes JJ, Sontheimer EJ, Seiwert SD, Steitz JA. Mutations in the conserved loop of human U5 snRNA generate use of novel cryptic 5′ splice sites in vivo. The EMBO Journal 1993, 12: 5181-5189. PMID: 8262061, PMCID: PMC413781, DOI: 10.1002/j.1460-2075.1993.tb06213.x.Peer-Reviewed Original ResearchConceptsSplice siteRabbit beta-globin geneBeta-globin transcriptsBeta-globin geneU5 genesConserved loopMRNA splicingU5 snRNASecond intronFirst exonExon sequencesLoop mutantsSecond exonExpression vectorTransient transfectionCryptic sitesNovel siteHeLa cellsGT dinucleotideExonsExon 1U5 sequencesSnRNAMutationsVivo system
1992
Site-specific cross-linking of mammalian U5 snRNP to the 5' splice site before the first step of pre-mRNA splicing.
Wyatt JR, Sontheimer EJ, Steitz JA. Site-specific cross-linking of mammalian U5 snRNP to the 5' splice site before the first step of pre-mRNA splicing. Genes & Development 1992, 6: 2542-2553. PMID: 1340469, DOI: 10.1101/gad.6.12b.2542.Peer-Reviewed Original ResearchConceptsSplice siteMRNA splicingATP-dependent interactionHeLa nuclear extractsU5 snRNPMRNA substratesSplice site regionProtein factorsU5 snRNANucleotides upstreamU6 snRNAPre-mRNANuclear extractsSplicingSite regionLoop sequenceCross-link formationSnRNASplicing conditionsWatson-Crick complementarityCross-linking strategyU1Selective photoactivationSnRNPMammalian