2021
Hyperosmotic stress alters the RNA polymerase II interactome and induces readthrough transcription despite widespread transcriptional repression
Rosa-Mercado NA, Zimmer JT, Apostolidi M, Rinehart J, Simon MD, Steitz JA. Hyperosmotic stress alters the RNA polymerase II interactome and induces readthrough transcription despite widespread transcriptional repression. Molecular Cell 2021, 81: 502-513.e4. PMID: 33400923, PMCID: PMC7867636, DOI: 10.1016/j.molcel.2020.12.002.Peer-Reviewed Original ResearchMeSH KeywordsDown-RegulationEndoribonucleasesHEK293 CellsHumansOsmotic PressureRNARNA Polymerase IISalt StressTime FactorsTranscription, GeneticTranscriptional ActivationConceptsWidespread transcriptional repressionTranscriptional repressionPol IIIntegrator complex subunitsRNA polymerase IIGenome-wide lossStress-induced redistributionParental genesTranscriptional outputDoG inductionPolymerase IIChIP sequencingHuman cell linesUpstream geneComplex subunitsPolyadenylation factorsTranscription profilesReadthrough transcriptsCatalytic subunitIntegrator activityCellular stressHyperosmotic stressTranscriptional levelTranscription resultsGenes
2019
Antisense lncRNA Transcription Mediates DNA Demethylation to Drive Stochastic Protocadherin α Promoter Choice
Canzio D, Nwakeze CL, Horta A, Rajkumar SM, Coffey EL, Duffy EE, Duffié R, Monahan K, O'Keeffe S, Simon MD, Lomvardas S, Maniatis T. Antisense lncRNA Transcription Mediates DNA Demethylation to Drive Stochastic Protocadherin α Promoter Choice. Cell 2019, 177: 639-653.e15. PMID: 30955885, PMCID: PMC6823843, DOI: 10.1016/j.cell.2019.03.008.Peer-Reviewed Original ResearchConceptsDNA demethylationAntisense promoterPromoter choiceHS5-1 enhancerCTCF binding siteNeural circuit assemblyMouse olfactory neuronsPcdhα genesDemethylation functionLncRNA transcriptionSense promoterAntisense transcriptionProtocadherin (Pcdh) αTET3 overexpressionTranscriptional statesAlternate genesPromoter DNAGene choiceDistal enhancerFirst exonPromoterTranscriptionΓ geneGenesOlfactory neurons