2018
Altered Splicing from a Mutated Alternate Branch Point Is Common in Severe Alpha-Spectrin Linked Inherited Anemia
Lezon-Geyda K, Schulz V, Maksimova Y, Gallagher P. Altered Splicing from a Mutated Alternate Branch Point Is Common in Severe Alpha-Spectrin Linked Inherited Anemia. Blood 2018, 132: 503. DOI: 10.1182/blood-2018-99-117752.Peer-Reviewed Original ResearchMRNA transcriptsTermination codonK562 cellsMinigene assayIntron 30Precise genetic basisAcceptor sitesInsertion/deletion mutationsHereditary pyropoikilocytosisWhole-genome sequencingNMD inhibitorsAcceptor splice siteDiagnostic gene panelsGenome databaseMRNA splicingWild-type minigeneConsensus sitesAltered splicingExon 31Genetic basisTranscript productionErythroid cellsGene manipulationGenetic analysisWT background
2008
Chromatin Architecture and Transcription Factor Occupancy of Erythrocyte Membrane Genes Studied by Chromatin Immunoprecipitation on Microarrays (ChIP-chip)
Steiner L, Maksimova Y, Wong C, Schulz V, Gallagher P. Chromatin Architecture and Transcription Factor Occupancy of Erythrocyte Membrane Genes Studied by Chromatin Immunoprecipitation on Microarrays (ChIP-chip). Blood 2008, 112: 2436. DOI: 10.1182/blood.v112.11.2436.2436.Peer-Reviewed Original ResearchErythrocyte membrane protein genesNF-E2 siteMembrane protein geneGATA-1 sitesTranscriptional start siteChromatin architectureTranscription factor bindingPrimary erythroid cellsGATA-1Protein geneChromatin immunoprecipitationTranscription factorsErythroid cellsH3K4me3 enrichmentFlanking DNAFactor bindingDNA sequencesK562 cellsErythroid transcription factor GATA-1Mapping protein-DNA interactionsNon-erythroid cell linesTranscription factor GATA-1Quantitative ChIP analysisTranscription factor occupancyGenome-wide scale
2006
Identification of a Novel Core Promoter Element That Enhances Transcription: Application to Ankyrin Promoters for Globin Gene Therapy.
Laflamme K, Elnitski L, Owen A, Gallagher P, Bodine D. Identification of a Novel Core Promoter Element That Enhances Transcription: Application to Ankyrin Promoters for Globin Gene Therapy. Blood 2006, 108: 3261. DOI: 10.1182/blood.v108.11.3261.3261.Peer-Reviewed Original ResearchGC-rich promoterLocus control regionΓ-globin expressionHematopoietic stem cellsTG dinucleotideErythroid cellsNovel core promoter elementΑ-globinDifferent tissue-specific promotersLike globin genesBinding regionsΓ-globin transcriptionANK-1 geneTranscription initiation complexΓ-globin geneErythroid K562 cellsConsensus promoter sequenceTranscriptional start siteCore promoter elementsRNA virus vectorMouse erythroid cellsK562 cellsStable transfection assaysWild-type promoterTissue-specific promoters
2005
Expression of a KCC1 Splice Variant Is Suppressed by NF-ΚB in Erythroid Cells.
Anderson K, Crable S, Hammond S, Gallagher P, Joiner C. Expression of a KCC1 Splice Variant Is Suppressed by NF-ΚB in Erythroid Cells. Blood 2005, 106: 1669. DOI: 10.1182/blood.v106.11.1669.1669.Peer-Reviewed Original ResearchSickle cell diseaseSickle cell patientsNF-κBCell patientsPeripheral blood mononuclear cellsSS cellsInvolvement of TNFαBlood mononuclear cellsNF-κB expressionEffects of TNFαTranscription factor NF-κBAddition of TNFαTransferrin receptor antibodyRed cell hydrationFactor NF-κBK562 cellsRed cell volumeErythroid precursor cellsReceptor antibodiesMononuclear cellsCytokine presentCell diseaseStem cell factorVitro expressPotential modifier genesChromatin Conformation and a Distal Regulatory Element Activate the Human Erythroid Ankyrin-1 Promoter.
Owen A, Liem R, Pilon A, Gallagher P, Bodine D. Chromatin Conformation and a Distal Regulatory Element Activate the Human Erythroid Ankyrin-1 Promoter. Blood 2005, 106: 803. DOI: 10.1182/blood.v106.11.803.803.Peer-Reviewed Original ResearchNon-erythroid cellsRegulatory elementsReporter geneErythroid cellsKb regionLuciferase reporter geneDNase IKb downstreamKb upstreamK562 cellsErythroid-specific transcription factorDNase I hypersensitive sitesE-box binding proteinGreen fluorescent protein (GFP) reporter geneCell typesChromatin conformation captureFluorescent protein reporter geneGFP reporter genePositive regulatory elementErythrocyte membrane skeletonConformation captureChromatin conformationChromatin loopsChromatin structureTranscription factors
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 modifications
1998
An Alternate Promoter Directs Expression of a Truncated, Muscle-specific Isoform of the Human Ankyrin 1 Gene*
Gallagher P, Forget B. An Alternate Promoter Directs Expression of a Truncated, Muscle-specific Isoform of the Human Ankyrin 1 Gene*. Journal Of Biological Chemistry 1998, 273: 1339-1348. PMID: 9430667, DOI: 10.1074/jbc.273.3.1339.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAmino Acid SequenceAnkyrinsBase SequenceCloning, MolecularDNA, ComplementaryErythroid Precursor CellsExonsGene Expression RegulationHumansMolecular Sequence DataMuscle, SkeletalMusclesMyocardiumMyoD ProteinPromoter Regions, GeneticRecombinant ProteinsTranscriptional ActivationConceptsKilobase pairsMuscle cDNADeduced amino acid sequenceCorresponding chromosomal geneHydrophobic NH2 terminusCultured C2C12 muscle cellsHuman ankyrin-1 geneSkeletal muscle cDNADNA-protein interactionsE-box consensusAmino acid sequenceK562 cellsMuscle-specific isoformPromoter directs expressionC2C12 muscle cellsAnkyrin-1 geneReporter gene plasmidHigh-level expressionNorthern blot analysisErythroid genesErythrocyte membrane proteinsSingle Sp1Erythroid promoterAlternative splicingRich promoter