2008
An insulator with barrier-element activity promotes α-spectrin gene expression in erythroid cells
Gallagher PG, Nilson DG, Steiner LA, Maksimova YD, Lin JY, Bodine DM. An insulator with barrier-element activity promotes α-spectrin gene expression in erythroid cells. Blood 2008, 113: 1547-1554. PMID: 19008453, PMCID: PMC2644083, DOI: 10.1182/blood-2008-06-164954.Peer-Reviewed Original ResearchConceptsIntron 1Erythroid cellsErythrocyte membrane protein genesExon 1Chicken HS4 insulatorGamma-globin proteinChromatin immunoprecipitation assaysEarly erythroid developmentMembrane protein geneAlpha-spectrin geneTissue-specific expressionMembrane biogenesisErythroid developmentGlobin genesHS4 insulatorImmunoprecipitation assaysProtein geneReporter geneGene expressionDevelopmental stagesGenesPromoterAdult erythrocytesExpressionSpectrin
2007
Alternate Promoters Direct Tissue-Specific Expression of Erythrocyte Ankyrin Transcripts with Novel NH2-Termini.
Steiner L, Lin J, Owens A, Sangerman J, Bodine D, Gallagher P. Alternate Promoters Direct Tissue-Specific Expression of Erythrocyte Ankyrin Transcripts with Novel NH2-Termini. Blood 2007, 110: 1710. DOI: 10.1182/blood.v110.11.1710.1710.Peer-Reviewed Original ResearchExon 1AExon 1bInitiator methionineFirst exonKb downstreamErythroid cellsNH2 terminusDNase I hypersensitive site mappingDirect tissue-specific expressionAmino acidsHypersensitive site mappingTissue-restricted patternTissue-specific expressionExon 1Alternate first exonsQuantitative RT-PCR analysisGATA-1 sitesTissue-specific promotersGene expression studiesLuciferase expressionExon 2 sequencesSkeletal muscleIsoform diversityAnkyrin repeatsAnkyrin-1 mutationsA GC Box Element Is Critical for Transcriptional Regulation of the K-Cl Cotransporter Isoform KCC3a in Hematopoetic Cells.
Crable S, Joiner C, Gallagher P. A GC Box Element Is Critical for Transcriptional Regulation of the K-Cl Cotransporter Isoform KCC3a in Hematopoetic Cells. Blood 2007, 110: 1712. DOI: 10.1182/blood.v110.11.1712.1712.Peer-Reviewed Original ResearchUntranslated sequenceInitiator methionineErythroid cellsNovel transcriptsPromoter activityExon 1Cell RNATerminal truncationExon 1DTrans-regulatory factorsMajor splicing isoformsPotential phosphorylation sitesErythroid K562 cellsGC-box elementsFull promoter activityPrimer extension analysisTranslation initiation siteLate erythroid cellsFurther deletion analysisVolume regulationKCl cotransporterLuciferase promoter constructsBone marrow RNATranscriptional regulationEST database
2006
Alternative Splicing within Exon 1 of the KCl Cotransporter-3 (KCC3) Gene Results in Novel Transcripts in Erythroid Cells.
Joiner C, Crable S, Gallagher P. Alternative Splicing within Exon 1 of the KCl Cotransporter-3 (KCC3) Gene Results in Novel Transcripts in Erythroid Cells. Blood 2006, 108: 1564. DOI: 10.1182/blood.v108.11.1564.1564.Peer-Reviewed Original ResearchUntranslated sequenceNovel transcriptsInitiator methionineErythroid cellsAlternative splicingPromoter activityExon 1Cell RNATerminal truncationPotential phosphorylation sitesMajor splicing isoformsErythroid K562 cellsPrimer extension analysisTranslation initiation siteVolume regulationNegative regulatory elementKCl cotransporterLuciferase promoter constructsBone marrow RNAEST databaseTranscriptional controlGenomic regionsPhosphorylation sitesSplicing isoformsDifferent transcripts
2004
Sequences Downstream of the Erythroid Promoter Promote High-Level Expression of the Human α-Spectrin Gene by Providing Boundary Activity and Positive Regulatory Elements.
Gallagher P, Nilson D, Lin J, Bodine D. Sequences Downstream of the Erythroid Promoter Promote High-Level Expression of the Human α-Spectrin Gene by Providing Boundary Activity and Positive Regulatory Elements. Blood 2004, 104: 1572. DOI: 10.1182/blood.v104.11.1572.1572.Peer-Reviewed Original ResearchPositive regulatory elementGATA-1 sitesAγ-globin geneRegulatory elementsIntron 1Exon 1Gene expressionLuc activitySplice siteGATA-1 activityErythroid-specific expressionHypersensitive site mappingΒ-globin promoterΑ-spectrin geneK562 cellsTransient transfection assaysMutant exon 1Γ-globin proteinMouse linesHigh-level expressionChromatin modificationsChromatin Remodeling of the Mouse AHSP Gene Requires EKLF.
Pilon A, Wong C, Garrett-Beal L, Weiss M, Gallagher P, Bodine D. Chromatin Remodeling of the Mouse AHSP Gene Requires EKLF. Blood 2004, 104: 375. DOI: 10.1182/blood.v104.11.375.375.Peer-Reviewed Original ResearchAlpha-Hemoglobin Stabilizing ProteinDNase I hypersensitive sitesAHSP geneAHSP gene expressionHypersensitive sitesWild typeΓ-globin mRNAFetal liver cellsHistone H3Human γ-globin genesGene expressionStrong DNase I hypersensitive siteIntron 1Wild-type chromatinChromatin Remodeling ComplexErythroid-specific proteinΓ-globin genePutative promoter sequencesTranscription factor EKLFExon 1Non-coding exonsΑ-globin mRNAPosition-independent expressionMRNA initiation siteRNase protection analysis