Chromatin expansion microscopy reveals nanoscale organization of transcription and chromatin
Pownall M, Miao L, Vejnar C, M'Saad O, Sherrard A, Frederick M, Benitez M, Boswell C, Zaret K, Bewersdorf J, Giraldez A. Chromatin expansion microscopy reveals nanoscale organization of transcription and chromatin. Science 2023, 381: 92-100. PMID: 37410825, PMCID: PMC10372697, DOI: 10.1126/science.ade5308.Peer-Reviewed Original ResearchConceptsZygotic genome activationTranscriptional elongationExpansion microscopyRNA polymerase IIChromatin regulatory factorsEnhancer-promoter contactsGenome activationChromatin organizationNuclear organizationPolymerase IIPol IIFactor NanogTranscription factorsGene expressionRegulatory factorsChromatinNanoscale organizationNanogTranscriptionElongationNucleosomesUniversal processPromoterEmbryosEnhancerlinc-mipep and linc-wrb encode micropeptides that regulate chromatin accessibility in vertebrate-specific neural cells
Tornini V, Miao L, Lee H, Gerson T, Dube S, Schmidt V, Kroll F, Tang Y, Du K, Kuchroo M, Vejnar C, Bazzini A, Krishnaswamy S, Rihel J, Giraldez A. linc-mipep and linc-wrb encode micropeptides that regulate chromatin accessibility in vertebrate-specific neural cells. ELife 2023, 12: e82249. PMID: 37191016, PMCID: PMC10188112, DOI: 10.7554/elife.82249.Peer-Reviewed Original ResearchConceptsCell typesIntergenic non-coding RNAsChromatin architectural proteinCryptic open reading frameGene regulatory networksOpen reading frameNon-coding RNAsNew cell typesNeural cell typesBrain cell typesPutative lincRNAsVertebrate genomesArchitectural proteinsChromatin disruptionChromatin accessibilityRegulatory networksGenetic basisCell developmentMicropeptidesBrain cell developmentReceptor-mediated pathwaySystematic identificationLincRNAsNeural cellsCerebellar cells