Abstract:
:Gene expression in eukaryotes is controlled by DNA sequences at promoter and enhancer regions, whose accessibility for binding by regulatory proteins dictates their specific patterns of activity. Here, we identify the protein Zbtb7a as a factor required for inducible changes in accessibility driven by transcription factors (TFs). We show that Zbtb7a binds to a significant fraction of genomic promoters and enhancers, encompassing many target genes of nuclear factor kappa B (NFκB) p65 and a variety of other TFs. While Zbtb7a binding is not alone sufficient to directly activate promoters, it is required to enable TF-dependent control of accessibility and normal gene expression. Using p65 as a model TF, we show that Zbtb7a associates with promoters independently of client TF binding. Moreover, the presence of prebound Zbtb7a can specify promoters that are amenable to TF-induced changes in accessibility. Therefore, Zbtb7a represents a widely used promoter factor that transduces signals from other TFs to enable control of accessibility and regulation of gene expression.
journal_name
PLoS Bioljournal_title
PLoS biologyauthors
Ramos Pittol JM,Oruba A,Mittler G,Saccani S,van Essen Ddoi
10.1371/journal.pbio.2004526subject
Has Abstractpub_date
2018-05-29 00:00:00pages
e2004526issue
5eissn
1544-9173issn
1545-7885pii
pbio.2004526journal_volume
16pub_type
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