Cited by 249Genomics and Chromatin DynamicsChromatin Remodeling and CancerNuclear Structure and Function

Genome-wide Single-Molecule Footprinting Reveals High RNA Polymerase II Turnover at Paused Promoters

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Krebs, Arnaud R., Imanci, Dilek, Hoerner, Leslie, Gaidatzis, Dimos, Burger, Lukas, Schübeler, Dirk·2017·Molecular Cell

Abstract

Transcription initiation entails chromatin opening followed by pre-initiation complex formation and RNA polymerase II recruitment. Subsequent polymerase elongation requires additional signals, resulting in increased residence time downstream of the start site, a phenomenon referred to as pausing. Here, we harnessed single-molecule footprinting to quantify distinct steps of initiation in vivo throughout the Drosophila genome. This identifies the impact of promoter structure on initiation dynamics in relation to nucleosomal occupancy. Additionally, perturbation of transcriptional initiation reveals an unexpectedly high turnover of polymerases at paused promoters-an observation confirmed at the level of nascent RNAs. These observations argue that absence of elongation is largely caused by premature termination rather than by stable polymerase stalling. In support of this non-processive model, we observe that induction of the paused heat shock promoter depends on continuous initiation. Our study provides a framework to quantify protein binding at single-molecule resolution and refines concepts of transcriptional pausing.

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Crossref · 10.1016/j.molcel.2017.06.027

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  • Transcription factor binding to DNA appears to be very transient.

    “While it is clear that enhancers typically favour the more flexible models of sequence organisation, the degree of necessary cooperation between TFs is less obvious, particularly since TF binding to DNA appears to be very transient [113–117].”

    From Transcriptional enhancers and their communication with gene promoters (2021) · cites this paper as [116]

    In Results, ‘The TATA Box Stabilizes Binding of the PIC’ (page unavailable), the paper says PIC formation at TATA-less promoters may be transient. It does not establish that transcription-factor binding to DNA is generally very transient; it instead reports more frequent PIC binding at TATA-containing promoters and notes that some general transcription factors may form a stable scaffold. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Single molecule footprinting can detect the binding of multiple transcription factors on a single DNA molecule.

    “First developed in Drosophila, SMF can detect the binding of multiple TFs on a single DNA molecule [116].”

    From Transcriptional enhancers and their communication with gene promoters (2021) · cites this paper as [116]

    In Results, “Simultaneous Quantification of Multiple Transcription Initiation Intermediates” (page unavailable), the paper reports measuring multiple promoter-occupancy events on single molecules. It identifies footprints associated with the pre-initiation complex and RNA polymerase II, but does not show detection of multiple individual transcription factors on one molecule. The “Principles of Dual-Enzyme Single-Molecule Footprinting” section says the method was applied in Drosophila, not that SMF was first developed there. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Molecular processes that transmit regulatory information from enhancers to promoters, and those associated with promoter operation itself, are stochastic and dynamic.

    “Molecular processes that are thought to transmit regulatory information from enhancers to promoters (such as recruitment of transcription factors and coactivators, assembly of the Mediator complex40), as well as those that are associated with promoter operation itself (such as pre-initiation complex assembly, RNA polymerase II pausing and release41,42) are also stochastic and dynamic43.”

    From Nonlinear control of transcription through enhancer–promoter interactions (2022) · cites this paper as [42]

    The Discussion reports continuous, rapid RNA polymerase II turnover at paused promoters, supporting the claim that promoter operation is dynamic. The paper does not establish that enhancer-to-promoter processes, such as transcription-factor and coactivator recruitment or Mediator assembly, are stochastic and dynamic. No page numbers are available in our copy. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • In many tractable experimental systems, increasing the number of TF binding sites leads to strongly nonlinear effects on gene expression.

    “in many tractable experimental systems, increasing the number of sites leads to strongly nonlinear effects on gene expression2,3”

    From Single-molecule states link transcription factor binding to gene expression (2024) · cites this paper as [3]

    The Results section, “Simultaneous Quantification of Multiple Transcription Initiation Intermediates” (page unavailable), relates promoter activity to Pol II occupancy, not the number of transcription-factor binding sites. Searches for increasing binding-site number and nonlinear expression effects found no passage addressing that relationship in our copy. (LLM, conf=0.76)

    Experimental — accuracy not yet measured

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Authors
Krebs, A. R., Imanci, D., Hoerner, L., Gaidatzis, D., Burger, L., & Schübeler, D.
Affiliations
  • Friedrich Miescher Institute (CH)
  • SIB Swiss Institute of Bioinformatics (CH)
  • University of Basel (CH)
Corresponding author
  • Krebs, Arnaud R.
  • Schübeler, Dirk
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2017-08
Volume
67
Issue
3
Pages
411-422.e4
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2738668193
Cited by
249
References
33
Citations by year
2026: 33 · 2025: 37 · 2024: 33 · 2023: 20 · 2022: 26 · 2021: 29 · 2020: 27 · 2019: 22 · 2018: 18 · 2017: 2 · 2013: 1
FWCI
7.71
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • Novartis Research Foundation
  • European Union (NoE “EpiGeneSys”, FP7-257082)
  • “Blueprint” consortium (FP7-282510)
  • European Research Council (ERC (204264 “EpiGePlas”)
  • Swiss National Science Foundation (31003A_156963)
  • Swiss National Science Foundation Ambizione (PZOOP3_161493)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
Keywords
RNA polymerase II, transcriptional pausing, transcription initiation, promoter structure, nascent RNA, early termination, heat shock promoter, Drosophila, preinitiation complex
MeSH terms
Single Molecule Imaging, Animals, Binding Sites, DNA, Drosophila melanogaster, Half-Life, Kinetics, Promoter Regions, Genetic, Protein Binding, RNA, RNA Polymerase II, Transcription, Genetic, TATA Box, HSP70 Heat-Shock Proteins, Transcription Initiation Site, Drosophila Proteins, Genome-Wide Association Study, Protein Stability, Proteolysis, Transcription Initiation, Genetic, Transcription Termination, Genetic

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