2016
CTCF and CohesinSA-1 Mark Active Promoters and Boundaries of Repressive Chromatin Domains in Primary Human Erythroid Cells
Steiner LA, Schulz V, Makismova Y, Lezon-Geyda K, Gallagher PG. CTCF and CohesinSA-1 Mark Active Promoters and Boundaries of Repressive Chromatin Domains in Primary Human Erythroid Cells. PLOS ONE 2016, 11: e0155378. PMID: 27219007, PMCID: PMC4878738, DOI: 10.1371/journal.pone.0155378.Peer-Reviewed Original ResearchMeSH KeywordsBinding SitesCCCTC-Binding FactorCells, CulturedChromatinChromatin ImmunoprecipitationErythroid CellsErythropoiesisGene Expression ProfilingHematopoietic Stem CellsHigh-Throughput Nucleotide SequencingHumansK562 CellsNuclear ProteinsPromoter Regions, GeneticProtein BindingProtein Interaction MapsRepressor ProteinsSequence Analysis, RNAConceptsPrimary human erythroid cellsRepressive chromatin domainsHuman erythroid cellsChromatin domainsErythroid cellsChromatin architectureGene promoterGene expressionPrimary human hematopoietic stemCell type-specific mannerCritical cellular processesSites of CTCFGenome-wide dataHigh-throughput sequencingMRNA transcriptome analysisHuman hematopoietic stemRepressive chromatinCohesin sitesProtein occupancyInsulator functionRepressive domainsTranscriptional regulationCTCF sitesDomain architectureRelated gene expression
2011
Unbiased Identification of Functional Barrier Insulators in Primary Human Erythroid Cells,
Steiner L, Schulz V, Maksimova Y, Seidel N, Bodine D, Gallagher P. Unbiased Identification of Functional Barrier Insulators in Primary Human Erythroid Cells,. Blood 2011, 118: 3385. DOI: 10.1182/blood.v118.21.3385.3385.Peer-Reviewed Original ResearchHuman erythroid cellsPrimary human erythroid cellsPosition-effect variegationInsulator functionErythroid cellsCpG methylationBarrier insulatorsGene promoterCell type-specific gene expressionRepressive histone mark H3K27me3Unbiased identificationParallel sequencingUpstream stimulatory factor proteinsCTCF ChIP-seqMethyl-Binding DomainGenome-wide bindingGenome-wide mapsRole of CTCFCell type-specific mannerGenome-wide scaleHistone mark H3K27me3Chicken erythroid cellsDirection of transcriptionMultiple regulatory proteinsChIP-seq studiesChromatin boundaries require functional collaboration between the hSET1 and NURF complexes
Li X, Wang S, Li Y, Deng C, Steiner LA, Xiao H, Wu C, Bungert J, Gallagher PG, Felsenfeld G, Qiu Y, Huang S. Chromatin boundaries require functional collaboration between the hSET1 and NURF complexes. Blood 2011, 118: 1386-1394. PMID: 21653943, PMCID: PMC3152501, DOI: 10.1182/blood-2010-11-319111.Peer-Reviewed Original ResearchConceptsErythroid genesInsulator sitesBarrier activityActive chromatin structureNucleosome remodeling activitiesChromatin barrier activityHistone H3K4 methyltransferaseChicken β-globinChromatin boundariesNURF complexChromatin structureInsulator functionNucleosome positioningMultiprotein complexesProtein complexesH3K4 methyltransferaseHS4 insulatorChromatin insulatorNURFH3K27me3 levelsLoci resultsLinker regionKnock-downΒ-globinFunctional collaboration
2008
Insulator Elements in Erythrocyte Membrane Genes
Steiner L, Maksimova Y, Lin J, Owen A, Schulz V, Bodine D, Gallagher P. Insulator Elements in Erythrocyte Membrane Genes. Blood 2008, 112: 3584. DOI: 10.1182/blood.v112.11.3584.3584.Peer-Reviewed Original ResearchErythrocyte membrane protein genesPosition-effect variegationMembrane protein geneProtein geneChromatin domainsAnkyrin promoterDNA sequencesErythroid cellsInsulator elementsMapping protein-DNA interactionsHeterochromatin-mediated geneGenome-wide scaleGenomic DNA microarrayBinding of CTCFStage-specific transcriptsEnhancer-blocking functionProtein-DNA interactionsCopy number-dependent expressionTissue-specific expressionProtein gene expressionCTCF occupancyRepetitive DNAInsulator functionSeparate enhancersErythroid promoter